EP2403370A1 - Footwear insole for high heel shoes - Google Patents

Footwear insole for high heel shoes

Info

Publication number
EP2403370A1
EP2403370A1 EP09771634A EP09771634A EP2403370A1 EP 2403370 A1 EP2403370 A1 EP 2403370A1 EP 09771634 A EP09771634 A EP 09771634A EP 09771634 A EP09771634 A EP 09771634A EP 2403370 A1 EP2403370 A1 EP 2403370A1
Authority
EP
European Patent Office
Prior art keywords
insole
raised portion
base layer
foot
high heel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP09771634A
Other languages
German (de)
French (fr)
Inventor
Jane M. Cappaert
Harold A. Howlett
Philip C. Yang
Charles E. Lundy, Jr.
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer Consumer Care AG
Original Assignee
MSD Consumber Care Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MSD Consumber Care Inc filed Critical MSD Consumber Care Inc
Publication of EP2403370A1 publication Critical patent/EP2403370A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/141—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form having an anatomical or curved form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/38—Built-in insoles joined to uppers during the manufacturing process, e.g. structural insoles; Insoles glued to shoes during the manufacturing process
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/02—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient
    • A43B17/026—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined wedge-like or resilient filled with a non-compressible fluid, e.g. gel, water
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/142—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the medial arch, i.e. under the navicular or cuneiform bones
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/22—Footwear with health or hygienic arrangements with foot-supporting parts with fixed flat-foot insertions, metatarsal supports, ankle flaps or the like

Definitions

  • the present invention relates to footwear insoles for increasing comfort in high heel shoes, and methods for using the insoles for increasing comfort in high heel shoes.
  • High heel shoes with a heel height of approximately 1.5 inches or more may create changes in body posture, gait, foot pressures, ankle position, etc. during walking. Some of these changes have been well documented.
  • Footwear insoles are generally inserted into shoes, in order to provide added cushioning or support for the wearer of the shoes.
  • the insoles may be removable and reusable, and they may be one-size-fits-all, specified shoe sizes, or custom-sized to the wearer.
  • Insoles offering additional cushioning by providing one or more cushioning layers to the soles of the wearer's shoes are known in the art. These insoles are generally used to decrease the impact felt by the wearer during walking, jogging, running, or other activities.
  • the invention described herein addresses these objectives by providing a footwear insole for increasing comfort that is specifically adapted to be worn in high heel shoes.
  • the invention provides a removable insole for high heel shoes, comprising a base layer comprising a heel region, an arch region and a forefoot region; and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe in contact with the insole.
  • the base layer comprises polyurethane gel.
  • the base layer comprises styrenic gel materials, in particular styrene-ethylene- butadiene-styrene (SEBS) gel.
  • SEBS styrene-ethylene- butadiene-styrene
  • the raised portion comprises a polyurethane gel having a softer durometer than the base layer.
  • the raised portion comprises SEBS gel having a softer durometer than the base layer.
  • the base layer includes an indent under the heel of the foot.
  • the invention also provides a high heel shoe comprising an insole comprising a base layer comprising a heel region, an arch region and a forefoot region; and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
  • the insole is removable from the high heel shoe.
  • the insole is integrated into the high heel shoe.
  • the invention further provides a method for increasing comfort in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
  • the invention also provides a method for increasing stability during heel strike when walking in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
  • the invention also provides a method for increasing stability of landing of a foot when walking in a high heel shoe, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe, whereby the raised portion lengthens a heel platform thereby increasing the stability of the landing of the foot.
  • the invention further provides a method for reducing pressure exerted on a forefoot when in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe shifting body weight back to the heel by the raised portion, thereby reducing pressure in the forefoot.
  • FIG. 1 A is a top view of an embodiment of an exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 1 B is a side view of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 1 C is a bottom view of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 2A is a cross-sectional view, along line A-A' shown in FIG. 1 A, of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 2B is a cross-sectional view, along line B-B' shown in FIG. 1 A, of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 2C is a cross-sectional view, along line C-C shown in FIG. 1 A, of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 2D is a front view of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 3A shows group means data for maximum force for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 3B shows group means data for peak pressure for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 3C shows group means data for contact time for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 3D shows group means data for contact area for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 3E shows group means data for maximum force for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 3F shows group means data for peak pressure for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 3G shows group means data for contact time for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 3H shows group means data for contact area for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 4A shows a bar graph of group means data for maximum force for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 4B shows a bar graph of group means data for peak pressure for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 4C shows a bar graph of group means data for contact time for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 4D shows a bar graph of group means data for contact area for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • FIG. 5A shows a bar graph of group means data for maximum force for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 5B shows a bar graph of group means data for peak pressure for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 5C shows a bar graph of group means data for contact time for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 5D shows a bar graph of group means data for contact area for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • FIG. 6A is a pressure map of feet wearing high heel shoes with no insole.
  • FIG. 6B is a pressure map of feet wearing high heel shoes with the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • FIG. 7A is another pressure map of feet wearing high heel shoes with no insole.
  • FIG. 7B is another pressure map of feet wearing high heel shoes with the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
  • Figures 1 and 2 depict an embodiment of an exemplary footwear insole 1 for high heel shoes, in accordance with the present invention. Although the Figures show a right-footed embodiment of the exemplary footwear insole 1 , it is to be understood that a left-footed embodiment of the exemplary footwear insole 1 would be a mirror image of the Figures shown.
  • FIG. 1A to 1C, and 2D show different views of an embodiment of an exemplary footwear insole 1 for high heel shoes.
  • FIG. 1A is a top view
  • FIG. I B is a side view
  • FIG. 1C is a bottom view
  • FIG. 2D is a front view of the embodiment of the exemplary footwear insole 1.
  • Figures 1A, 1 B, 1C, and 2D show a base layer 2 extending between a heel region 3 and a forefoot region 5 of the insole 1.
  • the base layer 2 may extend from the region 3 underneath the heel to a region 5 underneath the forefoot but preferably not underneath the toes of the foot.
  • the base layer 2 may have a length of 190.0 ⁇ 4.0 mm, and a width in the forefoot region 5 of 64.0 ⁇ 3.0 mm.
  • the base layer 2 may be made of polyurethane gel, SEBS gel or any other similar material.
  • the base layer will have a Shore 000 durometer of between about 58 to about 74, and preferably about 66.
  • the base layer 2 may include an indent or heel cup (not shown) in the heel region 3, into which the heel of the foot may fit.
  • Figures 1A, 1 B, and 2D also show a raised portion 4 in the arch region prominent from the top surface of the base layer 2, i.e., the surface in contact with the bottom of a foot when in use.
  • the raised portion 4 is configured so as to be approximately underneath the arch of the foot, more particularly in contact with the central area of the arch region of the foot so as to support the plantar fascia when the foot is in the high heel shoe.
  • raised portion 4 is configured so as to support the plantar fascia distal to the calcaneus.
  • the raised portion 4 may be made of polyurethane gel, SEBS gel or any other similar material.
  • raised portion 4 has a softer durometer range than the base layer 2.
  • raised portion 4 will have a Shore 000 durometer of between about 22 to about 38, and preferably about 30. In certain embodiments raised portion 4 has a compliant, tactile feel and may conform to the shape of the arch of the foot, preferably substantially under the plantar fascia of the foot, when the foot is inserted in the shoe. Further, raised portion 4 is configured to allow the foot to sink into the insole 1 and increase stability during heel strike.
  • Figures 2A, 2B, and 2C show different cross-sectional views of the embodiment of the exemplary footwear insole 1 for high heel shoes.
  • Figure 2A shows a cross-sectional view in the heel region 3 along line A-A' shown in Figure 1A
  • Figure 2B shows a cross-sectional view through the arch region and raised portion 4 along line B-B' shown in Figure 1A
  • Figure 2C shows a cross-sectional view in the forefoot region 5 along line C-C shown in Figure 1A.
  • the base layer 2 has an approximately uniform thickness in the heel region 3.
  • the base layer 2 may have a thickness of 1.7 ⁇ 1.0 mm in the heel region 3.
  • the cross- sectional view of Figure 2A may include a corresponding varying thickness of the base layer 2 in the heel region 3.
  • the base layer 2 also has an approximately uniform thickness underneath the forefoot region 5.
  • the base layer 2 may have a thickness of 1.7 ⁇ 0.5 mm in the forefoot region 5.
  • the base layer 2 has an approximately uniform thickness underneath the arch of the foot.
  • the raised portion 4 is prominent from the top surface of the base layer 2 and provides an increased thickness of the insole 1.
  • the raised portion is preferably situated substantially centrally between the medial and lateral arch of a foot when the foot is in contact with the insole.
  • the raised portion 4 may have a maximum thickness of 6.7 ⁇ 1.5 mm in the area of the crest 6.
  • the insole 1 By providing increased thickness of the insole 1 centrally underneath the arch region of the foot by raised portion 4 according to the present invention, the insole 1 creates more contact between the foot and shoe in the area of the plantar fascia of the foot when wearing high heel shoes.
  • the insole 1 according to the present invention may reduce pressures under the ball of the foot in the forefoot region 5 when wearing high heel shoes.
  • the insole 1 may have the effect of lengthening the heel platform and/or cupping the heel to increase the stability of landing.
  • the insole 1 may allow the body's weight to be shifted back towards the heel region 3 to relieve excess pressure in the forefoot region 5, by increasing the heel landing platform and/or arch contact.
  • the insole 1 may increase arch contact by the prominent raised portion 4 during walking to facilitate a more natural walking stride.
  • the insole 1 may improve posture by increasing comfort in high heel shoes, according to one or a combination of the above features.
  • the insole 1 may be a 3/4 length insole which extends longitudinally forward from the heel region 3 to a position in the forefoot region 5 rearward of the toes of the foot.
  • the insole 1 may include a base layer 2 and a raised portion 4 prominent from the top surface of the base layer 2 substantially underneath the arch of the foot.
  • the raised portion 4 may include a crest 6 that fits into the arch of the foot, particularly in contact with the arch region of the foot to support the plantar fascia, when the foot is in the high heel shoe.
  • raised portion 4 is configured so as to support the plantar fascia distal to the calcaneus.
  • the base layer 2 may be made of polyurethane gel
  • the arch bump 4 may be made of a polyurethane gel or SEBS gel or similar material softer than the material of the base layer 2.
  • the heel region 3 may include an indent or heel cup into which the heel of the foot may fit.
  • the insole 1 may increase maximum force, peak pressure, and contact area in the arch of the foot while reducing maximum force and peak pressures in the heel region 3 and the forefoot region 5.
  • a method of using an insole 1 for increasing comfort in high heel shoes may comprise the step of increasing contact with an arch of a foot by a raised portion 4, in which the insole 1 includes a base layer 2 extending from a heel region 3 to a forefoot region 5 of the foot, and a raised portion 4 attached to the base layer 2 and situated in the arch region of the insole.
  • the method of using an insole 1 thus also provides a method for increasing stability during heel strike when walking in high heel shoes.
  • the method of using an insole 1 thus also provides a method for increasing stability during heel strike when walking in high heel shoes.
  • the method of using an insole 1 thus also provides a method for increasing stability of landing of a foot when walking in a high heel shoe whereby the raised portion 4 lengthens the heel platform of the shoe thereby increasing the stability of the landing of the foot.
  • the method of using the insole thus also provides a method for reducing pressure exerted on a forefoot when in high heel shoes a raised portion 4 substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe shifts body weight back to the heel region 3 by the raised portion 4, thereby reducing pressure in the forefoot.
  • Methods of manufacturing insoles from polyurethane or styrenic gels or similar materials are known in the art. Representative methods are disclosed in U.S. Patent Application Publication No. 20060026865 and references cited therein. The disclosure of that publication is hereby incorporated in its entirety into the present specification.
  • Embodiments of the exemplary footwear insole 1 for high heel shoes of the present invention were tested for increasing contact in the arch of the foot and reducing pressures in the forefoot region 3 of the foot.
  • Ten female subjects were recruited for evaluation of the exemplary footwear insole 1 for high heel shoes. The subjects were screened based on a number of criteria including, for example, age, height, weight, foot size, general health, and others. In particular, subjects were required to have worn high heel shoes at least 1.5 inches high for a minimum of three days per week prior to the study.
  • a Novel Electronics Pedar ® measurement system was used to measure underfoot pressure.
  • the system consisted of thin measurement insoles that were placed inside high heel shoes. Data were collected at 100 Hz, and the measured pressure and contact area output were used to calculate force. In addition, data were analyzed over the entire foot and within various sections of the foot.
  • Embodiments of the exemplary footwear insole 1 for high heel shoes were tested in two heel heights: 1.5 inches and 3.0 inches. All trials were conducted with subjects wearing the same brand and style of high heel shoes, except for a single subject due to shoe size accommodations.
  • a paired T-test was used to compare group means within each heel height condition over the total foot and within the various sections of the foot (heel, arch, ball of foot, lateral forefoot, first toe, and toes). Statistical significance level was chosen to be p ⁇ 0.05.
  • Figure 3A shows group means data for maximum force for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • the maximum force at the heel, lateral forefoot, 1 st toe, and toes decreases while the maximum force at the arch increases when using exemplary insoles according to the present invention.
  • Figure 3B shows group means data for peak pressure for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
  • the peak pressure at the heel, 1 st toe, and toes decreases while the peak pressure at the arch increases when using exemplary insoles according to the present invention.
  • Figure 3C shows group means data for contact time for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact time increases at both the heel and the arch when using exemplary insoles according to the present invention.
  • Figure 3D shows group means data for contact area for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact area at the heel decreases while the contact area at the arch increases when using exemplary insoles according to the present invention.
  • Figure 3E shows group means data for maximum force for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
  • the maximum force at the heel, ball, lateral forefoot, 1 st toe, and toes decreases while the maximum force at the arch increases when using exemplary insoles according to the present invention.
  • Figure 3F shows group means data for peak pressure for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the peak pressure at the heel, ball, and toes decreases while the peak pressure at the arch increases when using exemplary insoles according to the present invention.
  • Figure 3G shows group means data for contact time for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact time decreases at both the heel and the arch when using exemplary insoles according to the present invention.
  • Figure 3H shows group means data for contact area for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact area at the heel decreases while the contact area at the arch increases when using exemplary insoles according to the present invention.
  • Figures 4A to 4D, and 5A to 5D graphically represent the data in Figures 3A to 3H.
  • the asterisks highlighting various data points in Figures 4A to 4D, and 5A to 5D indicate data points having statistical significance, as set forth above. The remaining data points show trends in the data but may not include enough samples to achieve statistical significance.
  • Figure 4A shows the maximum force group means for 1.5 inch heels, corresponding to the data of Figure 3A.
  • Figure 4B shows the peak pressure group means for 1.5 inch heels, corresponding to the data of Figure 3B.
  • Figure 4C shows the contact time group means for 1.5 inch heels, corresponding to the data of Figure 3C. These results show an increase in contact time in both the heel and the arch when using insoles 1 according to the present invention.
  • Figure 4D shows the contact area group means for 1.5 inch heels, corresponding to the data of Figure 3D.
  • Figure 5A shows the maximum force group means for 3.0 inch heels, corresponding to the data of Figure 3E.
  • Figure 5B shows the peak pressure group means for 3.0 inch heels, corresponding to the data of Figure 3F.
  • Figure 5C shows the contact time group means for 3.0 inch heels, corresponding to the data of Figure 3G.
  • Figure 5D shows the contact area group means for 3.0 inch heels, corresponding to the data of Figure 3H.
  • exemplary insoles 1 create a change in the force and pressure dynamic, as well as a change in the contact dynamic.
  • maximum force and peak pressure are reduced in the heel and forefoot regions, whereas maximum force and peak pressure are increased in the arch area.
  • contact area is reduced in the heel region, whereas contact area is increased in the arch area.
  • Figures 6A and 6B show one example set of pressure maps of feet wearing high heel shoes with no insoles (Fig. 6A) and with exemplary insoles (Fig. 6B), in accordance with the present invention.
  • Figures 7A and 7B show another example set of pressure maps of feet wearing high heel shoes with no insoles (Fig. 7A) and with exemplary insoles (Fig. 7B), in accordance with the present invention.
  • pressure is indicated on a scale ranging from relative low pressure P1 to relative high pressure P6.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

Disclosed is a footwear insole (1) for increasing comfort in high heel shoes by providing a base layer (2) extending from a heel to a forefoot of a foot, and a raised portion (4) prominent from the top of the base layer and situated substantially under an arch of the foot, in which the raised portion is configured to increase support of the plantar fascia of the foot.

Description

FOOTWEAR INSOLE FOR HIGH HEEL SHOES
Field of the Invention
[ 0001 ] The present invention relates to footwear insoles for increasing comfort in high heel shoes, and methods for using the insoles for increasing comfort in high heel shoes.
Background
[ 0002 ] High heel shoes with a heel height of approximately 1.5 inches or more may create changes in body posture, gait, foot pressures, ankle position, etc. during walking. Some of these changes have been well documented.
[ 0003 ] For example, increased heel height shifts a body's center of mass forward, mainly due to an increase in forward trunk lean. This shift of the body's center of mass forward has been shown to increase forefoot pressure and loading and has been associated with many foot problems for wearers of high heel shoes.
[ 0004 ] In addition, increased heel height causes vertical ground reaction forces to increase during heel strike and forefoot push-off, and stance time to decrease, thereby resulting in increased overall shock applied to the body during walking. Further, stability during the initial heel strike is reduced due to the higher landing height and the narrower landing platform of the heel.
[ 0005 ] Moreover, increased heel height places the ankle in a more plantar flexed position. This forces the arch of the foot to be more rigid, preventing movement through the arch's normal range of pronation. Thus, the plantar flexed position of the ankle diminishes the body's natural ability to cushion through pronation the shock applied to the body during walking.
[ 0006] Footwear insoles are generally inserted into shoes, in order to provide added cushioning or support for the wearer of the shoes. The insoles may be removable and reusable, and they may be one-size-fits-all, specified shoe sizes, or custom-sized to the wearer.
[ 0007 ] Insoles offering additional cushioning by providing one or more cushioning layers to the soles of the wearer's shoes are known in the art. These insoles are generally used to decrease the impact felt by the wearer during walking, jogging, running, or other activities.
[ 0008 ] In addition at least one example of an insole device said to be adapted for use in high heel shoes is described in U.S. Patent No. 7,322,132, which, unlike the subject invention, has a crescent shaped apex position to lie under a calcaneus of the foot in a rear region, an apex lying under the second and third metatarsals of the foot in a forward region, and a middle region thinner than the apices of the rear and forward regions.
[ 0009] Thus there is a need for an insole that is uniquely designed to be worn in high heel shoes and that provides cushioning for comfort but in addition provides additional comfort and stability by its ability to transfer body weight towards the heel of the foot.
Summary
[ 0010 ] The invention described herein addresses these objectives by providing a footwear insole for increasing comfort that is specifically adapted to be worn in high heel shoes.
[ 0011 ] Thus the invention provides a removable insole for high heel shoes, comprising a base layer comprising a heel region, an arch region and a forefoot region; and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe in contact with the insole.
[ 0012 ] In a non-limiting embodiment of the invention, the base layer comprises polyurethane gel. [ 0013 ] In an alternative non-limiting embodiment of the invention, the base layer comprises styrenic gel materials, in particular styrene-ethylene- butadiene-styrene (SEBS) gel.
[ 0014 ] In an alternative non-limiting embodiment of the invention, the raised portion comprises a polyurethane gel having a softer durometer than the base layer.
[ 0015 ] In an alternative non-limiting embodiment of the invention, the raised portion comprises SEBS gel having a softer durometer than the base layer.
[ 0016] In an alternative non-limiting embodiment of the invention, the base layer includes an indent under the heel of the foot.
[ 0017 ] The invention also provides a high heel shoe comprising an insole comprising a base layer comprising a heel region, an arch region and a forefoot region; and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
[ 0018 ] In a non-limiting embodiment of the invention, the insole is removable from the high heel shoe.
[ 0019] In another non-limiting embodiment of the invention, the insole is integrated into the high heel shoe.
[ 0020 ] The invention further provides a method for increasing comfort in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
[ 0021 ] The invention also provides a method for increasing stability during heel strike when walking in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
[ 0022 ] The invention also provides a method for increasing stability of landing of a foot when walking in a high heel shoe, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe, whereby the raised portion lengthens a heel platform thereby increasing the stability of the landing of the foot.
[ 0023 ] The invention further provides a method for reducing pressure exerted on a forefoot when in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe shifting body weight back to the heel by the raised portion, thereby reducing pressure in the forefoot.
[ 0024 ] Other features and aspects of the present invention will become more fully apparent from the following brief description of the drawings, the detailed description of the non-limiting embodiments, the appended claims and the accompanying drawings.
Brief Description of the Drawings
[ 0025 ] FIG. 1 A is a top view of an embodiment of an exemplary footwear insole for high heel shoes, in accordance with the present invention.
[ 0026] FIG. 1 B is a side view of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
[0027 ] FIG. 1 C is a bottom view of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention. [ 0028 ] FIG. 2A is a cross-sectional view, along line A-A' shown in FIG. 1 A, of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
[ 0029 ] FIG. 2B is a cross-sectional view, along line B-B' shown in FIG. 1 A, of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
[ 0030 ] FIG. 2C is a cross-sectional view, along line C-C shown in FIG. 1 A, of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
[ 0031 ] FIG. 2D is a front view of the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
[ 0032 ] FIG. 3A shows group means data for maximum force for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[ 0033 ] FIG. 3B shows group means data for peak pressure for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[ 0034 ] FIG. 3C shows group means data for contact time for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[ 0035 ] FIG. 3D shows group means data for contact area for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[0036] FIG. 3E shows group means data for maximum force for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
[ 0037 ] FIG. 3F shows group means data for peak pressure for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. [ 0038 ] FIG. 3G shows group means data for contact time for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
[ 0039] FIG. 3H shows group means data for contact area for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
[ 0040 ] FIG. 4A shows a bar graph of group means data for maximum force for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[ 0041 ] FIG. 4B shows a bar graph of group means data for peak pressure for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[ 0042 ] FIG. 4C shows a bar graph of group means data for contact time for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[ 0043 ] FIG. 4D shows a bar graph of group means data for contact area for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention.
[ 0044 ] FIG. 5A shows a bar graph of group means data for maximum force for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
[ 0045 ] FIG. 5B shows a bar graph of group means data for peak pressure for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
[ 0046] FIG. 5C shows a bar graph of group means data for contact time for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention.
[ 0047 ] FIG. 5D shows a bar graph of group means data for contact area for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. [ 0048 ] FIG. 6A is a pressure map of feet wearing high heel shoes with no insole.
[ 0049 ] FIG. 6B is a pressure map of feet wearing high heel shoes with the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
[ 0050 ] FIG. 7A is another pressure map of feet wearing high heel shoes with no insole.
[ 0051 ] FIG. 7B is another pressure map of feet wearing high heel shoes with the embodiment of the exemplary footwear insole for high heel shoes, in accordance with the present invention.
Detailed Description of the Embodiments
[ 0052 ] Figures 1 and 2 depict an embodiment of an exemplary footwear insole 1 for high heel shoes, in accordance with the present invention. Although the Figures show a right-footed embodiment of the exemplary footwear insole 1 , it is to be understood that a left-footed embodiment of the exemplary footwear insole 1 would be a mirror image of the Figures shown.
[ 0053 ] Figures 1A to 1C, and 2D show different views of an embodiment of an exemplary footwear insole 1 for high heel shoes. FIG. 1A is a top view, FIG. I B is a side view, FIG. 1C is a bottom view, and FIG. 2D is a front view of the embodiment of the exemplary footwear insole 1. Figures 1A, 1 B, 1C, and 2D show a base layer 2 extending between a heel region 3 and a forefoot region 5 of the insole 1. The base layer 2 may extend from the region 3 underneath the heel to a region 5 underneath the forefoot but preferably not underneath the toes of the foot. However, it is understood that in use with smaller feet, e.g., Women's (US) size 5 and smaller, there may be some contact between the base layer and the toes. Preferably, the base layer 2 may have a length of 190.0 ± 4.0 mm, and a width in the forefoot region 5 of 64.0 ± 3.0 mm. The base layer 2 may be made of polyurethane gel, SEBS gel or any other similar material. In certain embodiments the base layer will have a Shore 000 durometer of between about 58 to about 74, and preferably about 66. Optionally, the base layer 2 may include an indent or heel cup (not shown) in the heel region 3, into which the heel of the foot may fit.
[ 0054 ] Figures 1A, 1 B, and 2D also show a raised portion 4 in the arch region prominent from the top surface of the base layer 2, i.e., the surface in contact with the bottom of a foot when in use. The raised portion 4 is configured so as to be approximately underneath the arch of the foot, more particularly in contact with the central area of the arch region of the foot so as to support the plantar fascia when the foot is in the high heel shoe. Preferably raised portion 4 is configured so as to support the plantar fascia distal to the calcaneus. The raised portion 4 may be made of polyurethane gel, SEBS gel or any other similar material. Preferably, raised portion 4 has a softer durometer range than the base layer 2. In certain embodiments raised portion 4 will have a Shore 000 durometer of between about 22 to about 38, and preferably about 30. In certain embodiments raised portion 4 has a compliant, tactile feel and may conform to the shape of the arch of the foot, preferably substantially under the plantar fascia of the foot, when the foot is inserted in the shoe. Further, raised portion 4 is configured to allow the foot to sink into the insole 1 and increase stability during heel strike.
[ 0055 ] Figures 2A, 2B, and 2C show different cross-sectional views of the embodiment of the exemplary footwear insole 1 for high heel shoes. Figure 2A shows a cross-sectional view in the heel region 3 along line A-A' shown in Figure 1A, Figure 2B shows a cross-sectional view through the arch region and raised portion 4 along line B-B' shown in Figure 1A, and Figure 2C shows a cross-sectional view in the forefoot region 5 along line C-C shown in Figure 1A.
[ 0056] In the cross-sectional view of Figure 2A, the base layer 2 has an approximately uniform thickness in the heel region 3. Preferably, the base layer 2 may have a thickness of 1.7 ± 1.0 mm in the heel region 3. If the heel region 3 includes an optional indent or heel cup (not shown), the cross- sectional view of Figure 2A may include a corresponding varying thickness of the base layer 2 in the heel region 3. In the cross-sectional view of Figure 2C, the base layer 2 also has an approximately uniform thickness underneath the forefoot region 5. Preferably, the base layer 2 may have a thickness of 1.7 ± 0.5 mm in the forefoot region 5.
[ 0057 ] In the cross-sectional view of Figure 2B, the base layer 2 has an approximately uniform thickness underneath the arch of the foot. The raised portion 4 is prominent from the top surface of the base layer 2 and provides an increased thickness of the insole 1. The raised portion is preferably situated substantially centrally between the medial and lateral arch of a foot when the foot is in contact with the insole. Preferably, the raised portion 4 may have a maximum thickness of 6.7 ± 1.5 mm in the area of the crest 6.
[ 0058 ] By providing increased thickness of the insole 1 centrally underneath the arch region of the foot by raised portion 4 according to the present invention, the insole 1 creates more contact between the foot and shoe in the area of the plantar fascia of the foot when wearing high heel shoes. In addition, the insole 1 according to the present invention may reduce pressures under the ball of the foot in the forefoot region 5 when wearing high heel shoes.
[ 0059] Further, the insole 1 according to the present invention may have the effect of lengthening the heel platform and/or cupping the heel to increase the stability of landing. In addition, the insole 1 may allow the body's weight to be shifted back towards the heel region 3 to relieve excess pressure in the forefoot region 5, by increasing the heel landing platform and/or arch contact. Moreover, the insole 1 may increase arch contact by the prominent raised portion 4 during walking to facilitate a more natural walking stride. Furthermore, the insole 1 may improve posture by increasing comfort in high heel shoes, according to one or a combination of the above features.
[0060 ] In a preferred non-limiting embodiment of the present invention, the insole 1 may be a 3/4 length insole which extends longitudinally forward from the heel region 3 to a position in the forefoot region 5 rearward of the toes of the foot. The insole 1 may include a base layer 2 and a raised portion 4 prominent from the top surface of the base layer 2 substantially underneath the arch of the foot. In addition, the raised portion 4 may include a crest 6 that fits into the arch of the foot, particularly in contact with the arch region of the foot to support the plantar fascia, when the foot is in the high heel shoe. Preferably raised portion 4 is configured so as to support the plantar fascia distal to the calcaneus. The base layer 2 may be made of polyurethane gel, and the arch bump 4 may be made of a polyurethane gel or SEBS gel or similar material softer than the material of the base layer 2. Further, the heel region 3 may include an indent or heel cup into which the heel of the foot may fit. The insole 1 may increase maximum force, peak pressure, and contact area in the arch of the foot while reducing maximum force and peak pressures in the heel region 3 and the forefoot region 5.
[ 0061] A method of using an insole 1 for increasing comfort in high heel shoes may comprise the step of increasing contact with an arch of a foot by a raised portion 4, in which the insole 1 includes a base layer 2 extending from a heel region 3 to a forefoot region 5 of the foot, and a raised portion 4 attached to the base layer 2 and situated in the arch region of the insole.
[ 0062 ] The method of using an insole 1 thus also provides a method for increasing stability during heel strike when walking in high heel shoes.
[ 0063 ] The method of using an insole 1 thus also provides a method for increasing stability during heel strike when walking in high heel shoes.
[ 0064 ] The method of using an insole 1 thus also provides a method for increasing stability of landing of a foot when walking in a high heel shoe whereby the raised portion 4 lengthens the heel platform of the shoe thereby increasing the stability of the landing of the foot.
[ 0065] The method of using the insole thus also provides a method for reducing pressure exerted on a forefoot when in high heel shoes a raised portion 4 substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe shifts body weight back to the heel region 3 by the raised portion 4, thereby reducing pressure in the forefoot. [ 0066] Methods of manufacturing insoles from polyurethane or styrenic gels or similar materials are known in the art. Representative methods are disclosed in U.S. Patent Application Publication No. 20060026865 and references cited therein. The disclosure of that publication is hereby incorporated in its entirety into the present specification.
Experimental Procedures and Data
[ 0067 ] Embodiments of the exemplary footwear insole 1 for high heel shoes of the present invention were tested for increasing contact in the arch of the foot and reducing pressures in the forefoot region 3 of the foot. Ten female subjects were recruited for evaluation of the exemplary footwear insole 1 for high heel shoes. The subjects were screened based on a number of criteria including, for example, age, height, weight, foot size, general health, and others. In particular, subjects were required to have worn high heel shoes at least 1.5 inches high for a minimum of three days per week prior to the study.
[ 0068 ] For each subject, a Novel Electronics Pedar® measurement system was used to measure underfoot pressure. The system consisted of thin measurement insoles that were placed inside high heel shoes. Data were collected at 100 Hz, and the measured pressure and contact area output were used to calculate force. In addition, data were analyzed over the entire foot and within various sections of the foot.
[ 0069 ] Embodiments of the exemplary footwear insole 1 for high heel shoes were tested in two heel heights: 1.5 inches and 3.0 inches. All trials were conducted with subjects wearing the same brand and style of high heel shoes, except for a single subject due to shoe size accommodations.
[ 0070 ] The subjects randomly tested four experimental conditions: 1.5 inch heels with no insoles; 1.5 inch heels with insoles; 3.0 inch heels with no insoles; and 3.0 inch heels with insoles. Further, five trials were collected for each experimental condition for each subject. A trial consisted of a 20 meter walk at a self-selected pace. [ 0071 ] For each condition, the mean and standard deviation of peak pressure were calculated from the five trials. The two trials furthest from the mean were discarded, and the remaining three trials were further analyzed. For each of the three remaining trials, values for right and left feet were averaged together and then the three trials for each condition were averaged. The data were analyzed over the entire foot and within various sections of the foot. A paired T-test was used to compare group means within each heel height condition over the total foot and within the various sections of the foot (heel, arch, ball of foot, lateral forefoot, first toe, and toes). Statistical significance level was chosen to be p ≤ 0.05.
[ 0072 ] The data are provided in Figures 3A to 3H. Figure 3A shows group means data for maximum force for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the maximum force at the heel, lateral forefoot, 1st toe, and toes decreases while the maximum force at the arch increases when using exemplary insoles according to the present invention.
[ 0073 ] Figure 3B shows group means data for peak pressure for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the peak pressure at the heel, 1st toe, and toes decreases while the peak pressure at the arch increases when using exemplary insoles according to the present invention.
[ 0074 ] Figure 3C shows group means data for contact time for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact time increases at both the heel and the arch when using exemplary insoles according to the present invention.
[ 0075 ] Figure 3D shows group means data for contact area for 1.5 inch high heel shoes with no insoles, and 1.5 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact area at the heel decreases while the contact area at the arch increases when using exemplary insoles according to the present invention.
[ 0076 ] Figure 3E shows group means data for maximum force for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the maximum force at the heel, ball, lateral forefoot, 1st toe, and toes decreases while the maximum force at the arch increases when using exemplary insoles according to the present invention.
[ 0077 ] Figure 3F shows group means data for peak pressure for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the peak pressure at the heel, ball, and toes decreases while the peak pressure at the arch increases when using exemplary insoles according to the present invention.
[ 0078 ] Figure 3G shows group means data for contact time for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact time decreases at both the heel and the arch when using exemplary insoles according to the present invention.
[ 0079 ] Figure 3H shows group means data for contact area for 3.0 inch high heel shoes with no insoles, and 3.0 inch high heel shoes with insoles according to the present invention. As can be seen from the data, the contact area at the heel decreases while the contact area at the arch increases when using exemplary insoles according to the present invention.
[ 0080 ] Figures 4A to 4D, and 5A to 5D graphically represent the data in Figures 3A to 3H. The asterisks highlighting various data points in Figures 4A to 4D, and 5A to 5D indicate data points having statistical significance, as set forth above. The remaining data points show trends in the data but may not include enough samples to achieve statistical significance.
[ 0081 ] Figure 4A shows the maximum force group means for 1.5 inch heels, corresponding to the data of Figure 3A. These results show a statistically significant reduction in maximum force in the toe area of the foot when using insoles 1 according to the present invention, as well as a decrease in maximum force in the heel and an increase in maximum force in the arch of the foot.
[ 0082 ] Figure 4B shows the peak pressure group means for 1.5 inch heels, corresponding to the data of Figure 3B. These results show a statistically significant reduction in peak pressure in the heel and the toe area of the foot when using insoles 1 according to the present invention, as well as an increase in peak pressure in the arch of the foot.
[ 0083 ] Figure 4C shows the contact time group means for 1.5 inch heels, corresponding to the data of Figure 3C. These results show an increase in contact time in both the heel and the arch when using insoles 1 according to the present invention.
[ 0084 ] Figure 4D shows the contact area group means for 1.5 inch heels, corresponding to the data of Figure 3D. These results show a statistically significant increase in contact area in the arch when using insoles 1 according to the present invention, as well as a decrease in contact area in the heel.
[ 0085 ] Figure 5A shows the maximum force group means for 3.0 inch heels, corresponding to the data of Figure 3E. These results show a statistically significant reduction in maximum force in the ball of foot area and a statistically significant increase in maximum force in the arch of the foot when using insoles 1 according to the present invention, as well as decreases in maximum force in the heel, lateral forefoot, first toe, and toes.
[ 0086] Figure 5B shows the peak pressure group means for 3.0 inch heels, corresponding to the data of Figure 3F. These results show a decrease in peak pressure in the heel, ball of foot, and toe areas, and an increase in peak pressure in the arch when using insoles 1 according to the present invention.
[ 0087 ] Figure 5C shows the contact time group means for 3.0 inch heels, corresponding to the data of Figure 3G. These results show a statistically significant decrease in contact time in the arch when using insoles 1 according to the present invention, as well as a decrease in contact time in the heel.
[ 0088 ] Figure 5D shows the contact area group means for 3.0 inch heels, corresponding to the data of Figure 3H. These results show a statistically significant increase in contact area in the arch and a statistically significant decrease in contact area in the heel when using insoles 1 according to the present invention.
[ 0089] Based on the above data and graphs in Figures 3A to 3H, 4A to 4D, and 5A to 5D, exemplary insoles 1 according to the present invention create a change in the force and pressure dynamic, as well as a change in the contact dynamic. Generally, maximum force and peak pressure are reduced in the heel and forefoot regions, whereas maximum force and peak pressure are increased in the arch area. In addition, contact area is reduced in the heel region, whereas contact area is increased in the arch area.
[ 0090 ] Moreover, Figures 6A and 6B show one example set of pressure maps of feet wearing high heel shoes with no insoles (Fig. 6A) and with exemplary insoles (Fig. 6B), in accordance with the present invention. Further, Figures 7A and 7B show another example set of pressure maps of feet wearing high heel shoes with no insoles (Fig. 7A) and with exemplary insoles (Fig. 7B), in accordance with the present invention. In the pressure maps of these Figures, pressure is indicated on a scale ranging from relative low pressure P1 to relative high pressure P6. As can be seen in the Figures, when using insoles 1 according to the present invention, pressure is decreased in the forefoot and heel regions of the feet, while pressure is increased in the arches of the feet. These changes are shown in Figures 6B and 7B by smaller and fewer areas of high pressure in the forefoot and heel regions of the feet, and by markedly larger areas of increased pressure in the arches of the feet. In particular, in Figures 6B and 7B the increase in pressure under the metatarsals along the lateral side of the foot, in the region of the cuboid and distal thereof, demonstrates the effect of the centrally located raised portion of the insole as opposed to a normal arch support which would show pressure in the medial arch.
[ 0091 ] Based on the above experimental data and results, significant positive effects were seen at both heel heights when using insoles 1 according to the present invention. The positive effects were more pronounced in the 3.0 inch heels than in the 1.5 inch heels. In the 3.0 inch heels, the results show that maximum force due to body weight was shifted significantly from the ball of foot to the arch when using insoles 1 according to the present invention. In addition, contact area in the arch increased significantly when using insoles 1 according to the present invention. Thus, the exemplary insoles 1 achieve a reduction in the force and pressure under the ball of the foot due to body weight by increasing contact area under the arch, thereby shifting the body's weight from the ball of the foot to the arch.
[0092 ] The foregoing description discloses only non-limiting embodiments of the present invention. Modification of the above-disclosed footwear insole for high heel shoes, as well as methods for using the same, which fall within the scope of the invention, will be readily apparent to those of ordinary skill in the art.
[ 0093 ] Accordingly, while the present invention has been disclosed in connection with the above non-limiting embodiments, it should be understood that other embodiments may fall within the spirit and scope of the invention, as defined by the following claims.

Claims

What Is Claimed Is:
1. A removable insole for high heel shoes, comprising: a base layer comprising a heel region, an arch region and a forefoot region; and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe in contact with the insole.
2. The insole of claim 1 wherein the raised portion is configured to support the plantar fascia distal to the calcaneus of the foot.
3. The insole of claim 1 wherein the raised portion is configured substantially centrally between the medial and lateral arch of a foot when the foot is in contact with the insole.
4. The insole of claim 1 , wherein the insole is a non-planar structure.
5. The insole of claim 1 , wherein the base layer comprises polyurethane gel.
6. The insole of claim 1 , wherein the base layer comprises an SEBS gel.
7. The insole of claim 1 , wherein the raised portion comprises polyurethane gel.
8. The insole of claim 1 , wherein the raised portion comprises SEBS gel.
9. The insole of claim 1 , wherein the raised portion comprises a material having a softer durometer than the base layer.
10. The insole of claim 1 , wherein the base layer has a Shore 000 durometer between about 58 and about 74.
11. The insole of claim 10, wherein the base layer has a Shore 000 (.urometer of about 66.
12. The insole of claim 1 , wherein the raised portion has a Shore 000 (.urometer between about 22 to about 38
13. The insole of claim 12, wherein the raised portion has a Shore 000 durometer of about 30.
14. The insole of claim 1 , wherein the raised portion is configured to lengthen the heel platform of the shoe.
15. The insole of claim 1 , wherein the base layer includes an indent in the heel region.
16. A high heel shoe comprising an insole comprising: a base layer comprising a heel region, an arch region and a forefoot region; and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
17. The high heel shoe of claim 16, wherein the insole is a removable insole.
18. The high heel shoe of claim 16, wherein the insole is integrated into the shoe.
19. A method for increasing comfort in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
20. The method of claim 19, wherein the insole is a removable insole.
21. The method of claim 19, wherein the insole is integrated into the shoe.
22. The method of claim 19, wherein the base layer comprises polyurethane gel.
23. The method of claim 19, wherein the base layer comprises an SEBS gel.
24. The method of claim 19, wherein the raised portion comprises polyurethane gel.
25. The method of claim 19, wherein the raised portion comprises SEBS gel.
26. The method of claim 19, wherein the raised portion comprises a material having a softer durometer than the base layer.
27. The method of claim 19, wherein the base layer has a Shore 000 durometer between about 58 and about 74.
28. The method of claim 19, wherein the base layer has a Shore 000 durometer of about 66.
29. The method of claim 19, wherein the raised portion has a Shore 000 durometer between about 22 to about 38
30. The method of claim 19, wherein the raised portion has a Shore 000 durometer of about 30.
31. A method for increasing stability during heel strike when walking in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe.
32. The method of claim 31 , wherein the insole is a removable insole.
33. The method of claim 31 , wherein the insole is integrated into the shoe.
34. The method of claim 31 , wherein the base layer comprises polyurethane gel.
35. The method of claim 31 , wherein the base layer comprises an SEBS gel.
36. The method of claim 31 , wherein the raised portion comprises polyurethane gel.
37. The method of claim 31, wherein the raised portion comprises SEBS gel.
38. The method of claim 31 , wherein the raised portion comprises a material having a softer durometer than the base layer.
39. The method of claim 31 , wherein the base layer has a Shore 000 durometer between about 58 and about 74.
40. The method of claim 39, wherein the base layer has a Shore 000 durometer of about 66.
41. The method of claim 31 , wherein the raised portion has a Shore 000 durometer between about 22 to about 38
42. The method of claim 41 , wherein the raised portion has a Shore 000 durometer of about 30.
43. A method for increasing stability of landing of a foot when walking in a high heel shoe, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe, whereby the raised portion lengthens a heel platform thereby increasing the stability of the landing of the foot.
44. The method of claim 43, wherein the insole is a removable insole.
45. The method of claim 43 wherein the insole is integrated into the shoe.
46. The method of claim 43, wherein the base layer comprises polyurethane gel.
47. The method of claim 43, wherein the base layer comprises an SEBS gel.
48. The method of claim 43, wherein the raised portion comprises polyurethane gel.
49. The method of claim 43, wherein the raised portion comprises SEBS gel.
50. The method of claim 43, wherein the raised portion comprises a material having a softer durometer than the base layer.
51. The method of claim 43, wherein the base layer has a Shore 000 durometer between about 58 and about 74.
52. The method of claim 51 wherein the base layer has a Shore 000 durometer of about 66.
53. The method of claim 43, wherein the raised portion has a Shore 000 durometer between about 22 to about 38
54. The method of claim 53 wherein the raised portion has a Shore 000 durometer of about 30.
55. A method for reducing pressure exerted on a forefoot when in high heel shoes, the method comprising incorporating in the high heel shoe an insole comprising a base layer comprising a heel region, an arch region and a forefoot region and a raised portion substantially in the arch region configured to support the plantar fascia of a foot when the foot is inserted in a high heel shoe shifting body weight back to the heel by the raised portion, thereby reducing pressure in the forefoot.
56. The method of claim 55, wherein the insole is a removable insole.
57. The method of claim 55, wherein the insole is integrated into the shoe.
58. The method of claim 55, wherein the base layer comprises polyurethane gel.
59. The method of claim 55, wherein the base layer comprises an SEBS gel.
60. The method of claim 55, wherein the raised portion comprises polyurethane gel.
61. The method of claim 55, wherein the raised portion comprises SEBS gel.
62. The method of claim 55, wherein the raised portion comprises a material having a softer durometer than the base layer.
63. The method of claim 55, wherein the base layer has a Shore 000 (.urometer between about 58 and about 74.
64. The method of claim 63, wherein the base layer has a Shore 000 durometer of about 66.
65. The method of claim 55, wherein the raised portion has a Shore 000 durometer between about 22 to about 38
66. The method of claim 65, wherein the raised portion has a Shore 000 durometer of about 30.
EP09771634A 2008-12-12 2009-12-10 Footwear insole for high heel shoes Withdrawn EP2403370A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US12/334,090 US20100146816A1 (en) 2008-12-12 2008-12-12 Footwear insole for high heel shoes
PCT/US2009/067426 WO2010068719A1 (en) 2008-12-12 2009-12-10 Footwear insole for high heel shoes

Publications (1)

Publication Number Publication Date
EP2403370A1 true EP2403370A1 (en) 2012-01-11

Family

ID=42102927

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09771634A Withdrawn EP2403370A1 (en) 2008-12-12 2009-12-10 Footwear insole for high heel shoes

Country Status (10)

Country Link
US (2) US20100146816A1 (en)
EP (1) EP2403370A1 (en)
JP (1) JP2012511959A (en)
AR (1) AR075758A1 (en)
AU (2) AU2009324688A1 (en)
BR (1) BRPI0922864A2 (en)
CA (1) CA2746649A1 (en)
CO (1) CO6501148A2 (en)
MX (1) MX342528B (en)
WO (1) WO2010068719A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040211086A1 (en) * 2003-04-23 2004-10-28 Hbn Shoe, Llc Device for high-heeled shoes
NZ607978A (en) 2010-08-11 2015-07-31 G Form Llc Flexible cushioning pads, items incorporating such pads, and methods of making and using
US20120090197A1 (en) * 2010-09-20 2012-04-19 G-Form, LLC Vibration dampening and pressure relieving innersole for cycling shoe
WO2014110029A1 (en) 2013-01-08 2014-07-17 3M Innovative Properties Company Plantar fascia support system
US9737111B2 (en) * 2013-03-15 2017-08-22 Cara Lustik Removable shoe insert for corrective sizing
US10264847B2 (en) * 2013-04-03 2019-04-23 Joan Oloff Footwear with metatarsal offloading
US10172412B2 (en) 2013-05-20 2019-01-08 Carlene Pride Cushioning shoe insert
USD748494S1 (en) 2013-05-21 2016-02-02 Msd Consumer Care, Inc. Package for a foot care product
USD827423S1 (en) 2013-05-21 2018-09-04 Bayer Healthcare Llc Package for a foot care product
USD827424S1 (en) 2013-05-21 2018-09-04 Bayer Healthcare Llc Package for a foot care product
US20170143074A1 (en) * 2013-12-19 2017-05-25 Thesis Couture, Inc. High-heel shank and high-heeled shoes using same
BR112016016009A2 (en) * 2014-01-10 2017-08-08 Heelzero Llc HIGH HEEL SHOES FOR A HUMAN FOOT
EP3091865B1 (en) * 2014-01-10 2023-06-07 Heelzero LLC Proper posture high-heeled shoes
US9833040B2 (en) 2014-01-16 2017-12-05 Ukies LLC Footwear and insole system
US8826567B1 (en) 2014-01-16 2014-09-09 Ukies LLC Footwear with insole system
US8800170B1 (en) 2014-01-16 2014-08-12 Ukies LLC Footwear insole system
US9615630B2 (en) 2014-05-20 2017-04-11 Shantel Christine Jackson Shoe sole adjustment pad
USD786542S1 (en) 2014-08-14 2017-05-16 David Fu Footwear
USD747861S1 (en) 2015-01-23 2016-01-26 Christine Cipriani Insole
US10638814B2 (en) 2015-04-13 2020-05-05 Worldoluxe Llc Shoe engagement and bumper insert system and method for using the same
USD825907S1 (en) * 2015-06-25 2018-08-21 David Fu Footwear
USD851874S1 (en) 2016-01-14 2019-06-25 J.M. Promotions, Inc. Shoe bumper
USD897084S1 (en) 2015-11-11 2020-09-29 Worldoluxe Llc Shoe bumper
US10856610B2 (en) 2016-01-15 2020-12-08 Hoe-Phuan Ng Manual and dynamic shoe comfortness adjustment methods
US10390587B2 (en) 2016-03-01 2019-08-27 Hbn Shoe, Llc Device for high-heeled shoes and method of constructing a high-heeled shoe
US10477915B2 (en) 2016-03-01 2019-11-19 Hbn Shoe, Llc Device for high-heeled shoes and method of constructing a high-heeled shoe
US10271612B2 (en) * 2016-06-21 2019-04-30 YZ Studio, Inc. High heel shoe
USD825153S1 (en) 2017-02-02 2018-08-14 Piga Inc. Soft sole footwear with adjustable plantar arch support
KR101977396B1 (en) * 2017-10-16 2019-05-10 (주) 에이치앤아이웍스 Apparatus for generating user customized insole data and operating method thereof
JP2021504067A (en) * 2017-11-21 2021-02-15 エイチビーエヌ シュー，エルエルシー Equipment for high heel shoes and how to make high heel shoes
US10702008B2 (en) 2018-02-26 2020-07-07 Hbn Shoe, Llc Device and method of constructing shoes
KR102227064B1 (en) * 2019-09-11 2021-03-11 김용덕 Functional insole for pregnant women
US11540588B1 (en) 2021-11-24 2023-01-03 Hbn Shoe, Llc Footwear insole
US11805850B1 (en) 2023-07-19 2023-11-07 Hbn Shoe, Llc Cuboid pad

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070022630A1 (en) * 2005-07-29 2007-02-01 Lundy Charles E Jr Arch support insole

Family Cites Families (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1605985A (en) * 1926-11-09 rasmussen
US1685827A (en) * 1925-10-12 1928-10-02 Saklad William Method of making boots and shoes
US1701260A (en) * 1927-08-23 1929-02-05 Fischer William Resilient sole pad for shoes
US1695134A (en) * 1928-01-05 1928-12-11 Albert F Bancroft Insertable pad for shoes
US1974161A (en) * 1932-07-18 1934-09-18 William J Riley Arch supporter
US1957695A (en) * 1933-04-11 1934-05-08 Baptist A Chiappetta Arch support
US1976441A (en) * 1933-04-20 1934-10-09 Feldman Joseph Cushion foot and arch support
US2074286A (en) * 1934-12-24 1937-03-16 Sullivan Charles Air cushion arch builder
US2065290A (en) * 1935-05-25 1936-12-22 Rigandi Joseph Ruig Arch supporter
US2089344A (en) * 1936-03-11 1937-08-10 Int Shoe Co Heel lock and arch cushion
US2409594A (en) * 1944-07-11 1946-10-15 Louis H Sherman Method of forming pedal appliances
US2600957A (en) * 1949-12-19 1952-06-17 Bartis Frank Pneumatic arch support
US3903621A (en) * 1974-09-26 1975-09-09 Benjamin B Dubner Conforming supportive innersole device
US4266350A (en) * 1979-08-20 1981-05-12 Ormid Company Footwear insole
US4631841A (en) * 1985-03-14 1986-12-30 Hickey John L Shoe insert device
US5782015A (en) * 1988-01-21 1998-07-21 Dananberg; Howard J. Comfortable high heel shoe
US5003708A (en) * 1988-09-26 1991-04-02 Dynamic Foam Products, Inc. Custom insole for athletic shoes
US5282326A (en) * 1991-07-09 1994-02-01 Schering-Plough Healthcare Products, Inc. Removeable innersole for footwear
WO1993019632A1 (en) * 1992-04-03 1993-10-14 Langer Biomechanics Group, Inc. High-heeled shoe orthotic device
FR2765779B1 (en) * 1997-07-11 1999-10-15 Catherine Atlani RELAXATION SOLE AND SHOE SO EQUIPPED
US6892478B1 (en) * 1999-05-21 2005-05-17 John J. Erickson Temperature-stabilized articles
US6315786B1 (en) * 1999-07-20 2001-11-13 Partnership Of Arthur H. Smuckler, James Grimes, Niko Efstathiou And Charles A. Sarris Device for treating heel pain
US6598319B2 (en) * 2001-01-17 2003-07-29 Spenco Medical Corporation Insole with rebounding and cushioning areas and adjustable arch support
US6854199B2 (en) * 2001-09-28 2005-02-15 Joseph Paul Polifroni Layered arch support
US6874257B2 (en) * 2002-01-14 2005-04-05 Acushnet Company Shoes including heel cushion
ITPI20020047A1 (en) * 2002-08-23 2002-11-21 Intertech Di Giovanni Mastroma "SHAPED SUPPORT FOR SHOES"
US20040211086A1 (en) 2003-04-23 2004-10-28 Hbn Shoe, Llc Device for high-heeled shoes
US7140125B2 (en) * 2003-10-20 2006-11-28 Angela Singleton High-heeled fashion shoe with comfort and performance enhancement features
US7426794B2 (en) * 2004-01-05 2008-09-23 Robert John Swensen Insole support system
US7284342B2 (en) * 2004-08-06 2007-10-23 Schering-Plough Healthcare Products, Inc. Heel insert
US20060026865A1 (en) 2004-08-06 2006-02-09 Schering Plough Healthcare Products Inc. Insole
US7900380B2 (en) * 2005-10-13 2011-03-08 Masterfit Enterprises Inc. User moldable adjustable insert
WO2007100922A2 (en) * 2006-02-28 2007-09-07 Polyworks, Inc. Methods of making polymeric articles and polymeric articles formed thereby
BRPI0715344A2 (en) * 2006-08-03 2013-11-26 Schering Plough Healthcare GEL SHEET
GB0619032D0 (en) * 2006-09-27 2006-11-08 Pelusi Julie Footwear cushioning apparatus
MX2010003522A (en) * 2007-09-28 2010-06-25 Angela Singleton Insole support system for footwear.
US8256142B2 (en) * 2008-02-04 2012-09-04 Sashanaz Hashempour Igdari Anatomically correct flexible contoured footbed insole

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070022630A1 (en) * 2005-07-29 2007-02-01 Lundy Charles E Jr Arch support insole

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD903268S1 (en) 2019-02-06 2020-12-01 S. C. Johnson & Son, Inc. Insole
USD906658S1 (en) 2019-02-19 2021-01-05 S. C. Johnson & Son, Inc. Insole
USD935758S1 (en) 2019-02-19 2021-11-16 S. C. Johnson & Son, Inc. Insole

Also Published As

Publication number Publication date
US20100146816A1 (en) 2010-06-17
AU2016200007A1 (en) 2016-01-28
AU2009324688A1 (en) 2010-06-17
US20130291398A1 (en) 2013-11-07
JP2012511959A (en) 2012-05-31
AR075758A1 (en) 2011-04-27
WO2010068719A1 (en) 2010-06-17
CA2746649A1 (en) 2010-06-17
BRPI0922864A2 (en) 2016-02-10
MX342528B (en) 2016-10-03
CO6501148A2 (en) 2012-08-15
MX2011006341A (en) 2011-10-06

Similar Documents

Publication Publication Date Title
US20130291398A1 (en) Footwear insole for high heel shoes
EP3672439B1 (en) Human shoe
US9167864B1 (en) Footwear with dynamic arch system
US7854075B2 (en) Orthotic device for open shoes
US20100154252A1 (en) Footwear insole for alleviating arthritis pain
KR102305428B1 (en) Pressure relief system for footwear
US9872534B2 (en) Footwear with dynamic arch system
US11564444B2 (en) Footwear with dynamic arch system
US9918515B2 (en) Footwear with dynamic arch system
WO2011017174A1 (en) Footwear sole
JP2023505321A (en) Shoes with a sole that achieves dynamic plantar arch support
EP2399475A2 (en) Footwear with Rocker Sole
KR100955038B1 (en) Last for manufacturing a shoe
JP2023505319A (en) Shoes with soles that provide dynamic heel support
KR102332280B1 (en) Plantar fasciitis specific insole
KR200333132Y1 (en) A orthopedic shoe for metatarsalgia
CN221690228U (en) Orthopedic midsole and shoe with midsole
WO2017075071A1 (en) Footwear with dynamic arch system
CN102429758B (en) Correcting insole and correcting shoe for handicapped person using same
US20170006960A1 (en) Dynamic Insole
JPWO2021112683A5 (en)

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20110712

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20140527

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: MSD CONSUMER CARE, INC.

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BAYER CONSUMER CARE HOLDINGS LLC

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: BAYER CONSUMER CARE AG

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

RIC1 Information provided on ipc code assigned before grant

Ipc: A43B 13/38 20060101ALI20170216BHEP

Ipc: A43B 7/22 20060101ALI20170216BHEP

Ipc: A43B 17/02 20060101ALI20170216BHEP

Ipc: A43B 7/14 20060101AFI20170216BHEP

INTG Intention to grant announced

Effective date: 20170310

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170721