KR102465422B1 - Compressiong band for applying pressure to the lower extremities to improve blood circulation - Google Patents

Abstract

The present invention relates to a compression band for applying a compressive force to the lower extremities in order to improve blood circulation. More specifically, it relates to a compression band for applying pressure to the lower extremities to prevent edema and improve blood circulation that can help blood circulation by wrapping the lower extremities with an appropriate compressive strength. In the compression band for imparting a compressive force to the lower extremities to promote blood circulation through muscle compression and to improve blood circulation to prevent edema, the compression sock part formed in a shape surrounding the foot under the wearer's ankle and the wearer's It is formed to wrap from the top of the ankle to the knee and includes a compression stocking part for pressing the calf, and the compression sock part includes a dorsum pressing part for pressing the back of the wearer's foot and a sole pressing part for pressing the sole of the wearer.

Description

Compression band for applying pressure to the lower extremities to improve blood circulation

The present invention relates to a compression band for applying a compressive force to the lower extremities to improve blood circulation, and more particularly, to a compressive force to the lower extremities for improving blood circulation that can prevent edema and help blood circulation by wrapping the lower extremities with an appropriate compressive strength. It relates to a compression band for giving

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Compression therapy can help blood circulation in the extremities by wearing tights or socks that can give pressure from the toes to the calves and knees.

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The principle of these compression socks is to stimulate the veins by compressing the muscles, and the stimulated veins help blood circulation. Exercising is using muscles, and stimulating the muscles improves blood circulation. The compression socks tighten the muscles, so the compressed muscles stimulate the veins to help the blood vessel walls work more healthily.

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The feet are also called the second heart, and there is a saying that you can tell the health of our body by looking at our feet. In particular, the calf is a precious muscle that carries blood to the furthest distance from the heart. This swelling of the lower body means that there is a serious health problem. Edema itself does not cause serious pain, but it silently means that something is wrong with our body. This is because edema is directly related to problems with blood circulation.

If the blood circulation is not good, the feet may rot in the worst case, the immune system is weakened because the body temperature is not transmitted well, and diseases such as poor circulation may occur. There are many ways to prevent edema, but if you apply healthy pressure to your muscles with compression socks and stockings, even if you do the same exercise, your body will be energized and blood circulation will be smooth.

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"Functional leggings" (hereinafter referred to as prior art) of the prior art registration utility model No. 20-0487233 provides a technology that can press the thighs and calves.

The prior art has a structure including a main outer fabric, a support lining, a compression band, a pelvic band, and a support member.

The main outer material is made of elastic material, and it is a member that is divided into a front and a back and cut into a trouser shape.

The support lining is a member that is sewn over and sewn along the thigh side of the inner surface of the main outer material and the lower hip line area to press the wearer's thigh side and the lower buttock line area.

The compression band is a member that is sewn to overlap the thigh and calf part of the inner surface of the main outer fabric in a spiral and wraps the wearer's leg to adjust the muscle balance to correct the lower body.

The pelvic band is a member that is sewn to the pelvic region of the inner surface of the main outer fabric and strongly presses and holds the pelvis to correct the pelvis.

The support member is a plurality of members supporting and supporting the waist along the circumference of the waist of the inner surface of the main outer fabric.

However, the prior art as a whole is focused on functional clothing for correction and correction of the wearer's entire lower body, and the prior art is used for a special purpose such as wearing during a special situation, that is, exercise, There was a problem in that it could not meet the different needs and demands of each wearer who wore it and went out or was active.

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Registered Utility Model No. 20-0487233

The present invention was devised to improve the above problems, and it provides a compression band for applying a compressive force to the lower extremities in order to improve blood circulation by wrapping the lower extremities with an appropriate compressive strength to prevent the occurrence of blood circulation diseases in advance. is to provide

In order to achieve the above object, the present invention is a compression band for the treatment of diabetes that is formed to surround the wearer's feet and calves to promote blood circulation through muscle compression and prevent edema, below the wearer's ankle A compression sock part formed in a shape surrounding the foot of the wearer and a compression stocking part formed in a shape surrounding from the top of the ankle to the knee of the wearer to compress the calf, wherein the compression sock part includes an instep compression part for pressing the instep of the wearer's foot; It is configured to include a sole pressing unit for pressing the sole of the wearer.

Preferably, the compression stocking portion comprises a first band forming an upper end surrounding each of the wearer's knee and popliteal periphery, and a second band forming a lower end surrounding each of the wearer's ankle and Achilles tendon periphery, and the A main body including a connecting tube forming an intermediate portion surrounding the wearer's knee and ankle by interconnecting the lower end edge of the first band and the upper end edge of the second band, and provided in the connecting tube, the calf muscles and the calf muscles It is disposed in a portion corresponding to the soleus muscle on both sides of the muscle, and is formed along the lower edge of the calf covering compression part and the calf covering compression part surrounding the inner and lateral branches of the calf muscle, and applying pressure from both sides and the lower end of the soleus muscle. and a main compression unit for increasing the blood flow of the anterior tibial artery and the posterior tibial artery passing through the soleus muscle by applying pressure to the soleus muscle.

Preferably, the first band, the second band, and the calf covering pressing part have a mesh structure, and the first band, the second band and the calf covering pressing part have a 1x1 mesh structure, and the main The pressing unit may have a 1x1 to 4x4 mesh structure.

Preferably, the compression strength of the main compression part is greater than or equal to the compression strength of the first band, the second band, and the calf covering compression part. The compression strength applied to the leg is the maximum, and the compression strength is gradually increased from the outer side of the upper edge of the second band toward the main compression part.

Preferably, the main body extends from the edge of the lower end of the main compression unit to the second band and includes a sub-compression unit for pressing the wearer's lower calf side, ankle and Achilles tendon, and the front and both sides of the lower end of the first band. and a ventilation part formed in an outer region of the calf covering compression part, the main compression part and the sub compression part to allow ventilation, and further comprising a ventilation part consisting of a rib structure allowing ventilation, the left and right sides of the calf covering compression part A planar heating element formed to extend in a band shape along the edge and the lower end edge and embedded in the main body, and electrically connected to the planar heating element and embedded in one side of the main body, to detect the pressure of the main body against the wearer's skin Further comprising a piezoelectric element, arranged spaced apart along the opposite surface of the planar heating element facing the wearer's skin side, characterized in that it further comprises a plurality of stone pieces for imparting acupressure stimulation to the wearer's skin have.

The compression band for applying a compressive force to the lower extremities for improving blood circulation according to the present invention includes a compression sock part and a compression stocking part, wherein the compression stocking part forms an upper end surrounding the wearer's knee and each periphery of the popliteal 1 band, a second band forming a lower end surrounding each periphery of the wearer's ankle and Achilles tendon, a first band forming an upper end enclosing each periphery of the wearer's knee and popliteal fossa, each of the wearer's ankle and Achilles tendon A body comprising: a second band forming a lower end surrounding the periphery; and a connecting tube connecting the lower end edge of the first band portion and the upper end edge of the second band to form an intermediate portion surrounding the wearer's knee and ankle And, provided in the connecting tube and disposed in a portion corresponding to the calf muscle and the soleus muscle on both sides of the calf muscle, the calf covering pressing part surrounding the inner and lateral branches of the calf muscle and the lower edge of the calf covering pressing unit and a main compression unit for increasing blood flow in the anterior tibial artery and posterior tibial artery passing through the soleus muscle by applying pressure from both sides and the lower end of the soleus muscle to compress the soleus muscle, wherein the compression strength of the main compression unit is The first band, the second band, and the compression strength of the calf covering compression part is greater than or equal to, in the main body, the compression strength applied to the leg of the wearer from the main compression part is the maximum, and the The compression strength is gradually increased from the outer edge of the upper end of the second band toward the main compression unit, thereby providing a compression band covering the lower extremities with an appropriate compression strength.

1 is a side conceptual view showing the structure of a compression stocking for improving blood circulation according to an embodiment of a compression band for applying a compression force to the lower extremities for improving blood circulation according to the present invention.
FIG. 2 is a rear conceptual view showing the structure of the compression stocking part of the compression band for applying a compression force to the lower extremities to improve blood circulation according to the present invention, as viewed from the point II of FIG. 1 .
3 and 4 are rear conceptual views showing the structure of the compression stocking according to various embodiments of the present invention.

Advantages and features of the present invention, and methods of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms.

In the present specification, the present embodiment is provided to complete the disclosure of the present invention, and to completely inform those of ordinary skill in the art to which the present invention pertains to the scope of the present invention.

And the invention is only defined by the scope of the claims.

Thus, in some embodiments, well-known components, well-known operations, and well-known techniques have not been specifically described to avoid obscuring the present invention.

In addition, like reference numerals refer to like elements throughout the specification, and terms used (referred to) in this specification are for the purpose of describing the embodiments and are not intended to limit the present invention.

In this specification, the singular also includes the plural unless specifically stated in the phrase, and elements and operations referred to as 'comprising (or having)' do not exclude the presence or addition of one or more other elements and operations. .

Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used with the meaning commonly understood by those of ordinary skill in the art to which the present invention belongs.

Also, terms defined in commonly used dictionary are not to be interpreted ideally or excessively unless defined.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

First, Figure 1 is a side conceptual view showing the structure of the compression stockings for improving blood circulation according to an embodiment of the compression band for the treatment of diabetes according to the present invention.

FIG. 2 is a rear conceptual view showing the structure of the compression stocking part of the compression band for diabetes treatment according to the present invention, as viewed from the II point of FIG. 1 .

3 and 4 are rear conceptual views showing the structure of the compression stocking according to various embodiments of the present invention.

In order to improve blood circulation according to the present invention, the compression band for applying a compressive force to the lower extremities is formed to surround the wearer's feet and calves to promote blood circulation through muscle compression and to improve blood circulation to prevent edema. A compression band for applying a compression force, comprising: a compression sock part formed in a shape that wraps the foot under the ankle of the wearer; The compression sock part may be configured to include a dorsum pressing part for pressing the back of the wearer's foot and a sole pressing part for pressing the sole of the wearer.

First, the compression sock portion may be configured to include a dorsum pressing unit for pressing the back of the wearer's foot and a sole pressing unit for pressing the sole of the foot. Through this, it can serve to effectively press the wearer's feet to promote blood circulation.

On the other hand, the compression band for applying a compression force to the lower extremities in order to improve blood circulation according to the present invention includes a compression stocking for pressing the calf.

The calf is a body part where muscles are formed that can pump blood from the legs, which is easily stagnant by gravity, to the upper body. By maintaining healthy calf muscles and blood vessels, blood circulation disorders and edema can be prevented and overcome.

As described above, the configuration of the compression stocking unit is subdivided as much as the calf compression is important.

As shown in the figure, the compression stocking unit has a structure in which the calf covering compression unit 20 and the main compression unit 30 are provided on the body 10 .

First, the main body 10 has a first band 11 forming an upper end surrounding each of the wearer's knee and popliteal periphery, and a second band 12 forming a lower end surrounding each of the wearer's ankle and Achilles tendon periphery. And, the lower end edge of the first band 11 and the upper end edge of the second band 12 are interconnected to form a connecting tube 13 that forms an intermediate portion wrapped between the wearer's knee and ankle.

And, the calf covering compression part 20 is provided in the connecting tube 13 and is disposed in a portion corresponding to the gastrocnemius muscle and the soleus muscle on both sides of the calf muscle, and the inside of the calf muscle (Castrocnemius) It covers the medial head and the lateral head.

In addition, the main compression unit 30 is formed along the lower edge of the calf covering compression unit 20, and by applying pressure from both sides and the lower end of the soleus muscle to compress the soleus muscle, the anterior tibial artery passing through the soleus muscle. ) and to increase blood flow in the posterior tibial artery.

The present invention can be applied to the above embodiments, and it will be of course also possible to apply the following various embodiments.

First, the calf covering compression portion 20 extends from both sides and rear edges of the first band 11 toward the second band 12 side and gradually narrows toward the second band 12 side, so that the calf muscle as a whole It covers and compresses.

The main pressing portion 30 is a portion extending toward the second band 12 from both sides of the lower end of the calf covering pressing portion 20 and the lower end of the above-described calf covering pressing portion 20 .

On the other hand, the first band 11, the second band 12, and the calf covering compression portion 20 are made of a mesh structure, and the first band 11 and the second band 12 and the calf covering compression unit are formed. The portion 20 has a 1x1 mesh structure, and the main compression portion 30 may be knitted into a mesh structure that can be appropriately selected within the range of 1x1 to 4x4.

Here, in the case of 1x1 and 4x4 meshes, taking "1x1" as an example, a 1x1 mesh structure is called a 1x1 mesh structure that is woven into one strand and one strand according to the number of threads to be woven.

At this time, the compression strength of the main compression unit 30 is greater than or equal to the compression strength of the first band 11, the second band 12, and the calf covering pressing unit 20, and the wearer's pressure from the main compression unit 30 is The compression strength applied to the leg is maximum, and it is preferable that the compression strength gradually increases from the outside of the upper end edge of the second band 12 toward the main compression unit 30 .

This gradual structure of compression strength increases blood flow and blood flow rate by compressing the anterior and posterior tibial arteries that pass through the calf along the sides and lower ends of the soleus muscle, thereby delaying or preventing the occurrence of edema or varicose veins. it can be said that

On the other hand, the main body 10 is extended from the edge of the lower end of the main compression unit 30 to the second band 12 to further include a sub compression unit 40 for pressing the wearer's lower calf side, ankle, and Achilles tendon. can

In addition, the main body 10 is formed in the area outside the front and both sides of the lower end of the first band 11 , and in the area outside the calf covering compression part 20 , the main pressing part 30 and the sub pressing part 40 . It may be further provided with a ventilation unit 50 made of a rib structure that allows ventilation.

Here, the sub-compression unit 40 may largely include a tendon compression band 41 and a compression band 42 .

At this time, the tendon compression band 41 extends from the lower end edge of the main compression unit 30 toward the rear upper end edge side of the second band 12, and serves to compress the calcaneal tendon of the wearer. do.

The compression band 42 extends along the upper edge of the second band 12 and is connected to the lower edge of the tendon compression band 41 and serves to compress the wearer's ankle and Achilles tendon.

Meanwhile, the main compression unit 30 may have a 4x4 mesh structure, the tendon sheath 41 may have a 2x2 to 3x3 mesh structure, and the compression band 42 may have a 2x2 mesh structure.

That is, the compression strength applied to the wearer's leg from the main compression unit 30 is the maximum as described above, and the compression strength gradually increases from the outer side of the upper end edge of the second band 12 toward the main compression unit 30 , , that is, from the main compression unit 30 toward the compression band 42, the compression strength may be gradually reduced.

The gradation of the compression strength increases the blood flow of the anterior and posterior tibial arteries and also increases the blood flow rate, thereby preventing the occurrence of diseases caused by blood circulation disorders such as varicose veins or edema.

On the other hand, the ventilation part 50 may include upper and lower ventilation parts (51, 52).

Here, the upper ventilation part 51 is formed in the outer region of the front and both sides of the lower end of the first band 11 , the calf covering compression part 20 , the main compression part 30 and the sub compression part 40 , and the main body (10) is formed by the 3x1 rib tissue disposed in front.

The lower ventilation part 52 is disposed between the lower edge of the upper ventilation part 51 and the compression band 42 formed on the lower side of the sub compression part 40, and is formed by 4x1 to 5x1 rib tissues.

In this case, 3x1 and 4x1 to 5x1 rib tissues may also be defined as 3:1, 4:1, and 5:1 rib tissues.

The lower venting part 52 has a higher pressing strength than the upper venting part 51 , so that the body 10 as a whole has a compression strength that decreases from the main pressing part 30 to the sub-pressing part 40 side. It is a structure to prevent loosening.

That is, the lower ventilation part 52 can be said to be a technical means provided to compensate for the strength according to the gradation of the compression strength that decreases from the lower side of the main body 10 toward the sub-compression unit 40 side.

On the other hand, it goes without saying that the present invention can be applied to an embodiment that forcibly increases the wearer's blood flow as shown in FIGS. 3 and 4 .

That is, the present invention further includes a planar heating element 60 and a piezoelectric element 70, as shown in FIG. 3, to artificially increase the wearer's blood flow and promote blood flow, thereby preventing the occurrence of diseases due to blood circulation disorders such as varicose veins or edema. It can be prevented in advance.

That is, the planar heating element 60 is formed to extend in a band shape along the left and right side edges and the lower end edge of the calf covering compression unit 20 and is built into the body 10, the type and material of which is not specified, but it is preferable For example, you could adopt something like carbon fiber.

In addition, the piezoelectric element 70 is electrically connected to the planar heating element 60 and is built in one side of the main body 10, generates a microcurrent by sensing the pressure of the main body 10 against the wearer's skin, and this microcurrent By energizing the planar heating element 60 to heat the area around the nasal muscle of the wearer to an appropriate temperature by the planar heating element 60, it is possible to promote blood flow.

In addition, the present invention is arranged to be spaced apart along the opposite surface of the planar heating element 60 facing the wearer's skin side as shown in FIG. 4, and by further comprising a plurality of stone pieces 65 that provide acupressure stimulation to the wearer's skin. Of course, it is also possible to promote acupressure and massage effects.

Here, the plurality of stone pieces 65 are made of a mixture of loess powder, tourmaline powder, and titanium dioxide, known as a material emitting far-infrared rays, thereby promoting blood flow and increasing blood flow together with the planar heating element 60 .

Hereinafter, the operation and effect of the compression stocking part configured in the compression band for imparting compression force to the lower extremities for improving blood circulation according to a preferred embodiment of the present invention will be examined as follows.

First, the compression stocking portion forms a first band 11 forming an upper end surrounding each periphery of the wearer's knee and popliteal, and a second band 12 forming a lower end surrounding each periphery of the wearer's ankle and Achilles tendon, and, The body 10 connecting tube ( 13) and placed in the part corresponding to the gastrocnemius muscle and soleus on both sides of the calf muscle, and the medial head and lateral head of the gastrocnemius muscle. The anterior tibial artery that passes through the soleus muscle is formed along the lower edge of the enveloping calf covering compression part 20 and the calf covering compression unit 20, and by applying pressure from both sides and the lower end of the soleus muscle to compress the soleus muscle. ) and the posterior tibial artery (Posterior tibial artey) characterized in that it includes a main compression unit 30 that increases the blood flow, and presses each area under the wearer's knee with an appropriate strength for blood circulation such as varicose veins or edema It will be possible to prevent the occurrence of diseases due to disability in advance.

And, the first band 11 and the second band 12 and the calf covering compression part 20 of the compression stocking part are made of a mesh structure, the first band 11 and the second band 12 and The calf covering compression unit 20 has a 1x1 mesh structure, the main compression unit 30 has a 1x1 to 4x4 mesh structure, and the compression strength of the main compression unit 30 is the first band 11 and the second band 12 . ) and the compression strength of the calf covering compression part 20, but in the main body 10, the compression strength applied to the wearer's leg from the main compression part 30 is the maximum, and the second band 12 ), the compression strength is gradually increased from the outer edge of the upper end to the main compression unit 30, thereby promoting smooth blood flow of the anterior tibial artery and posterior tibial artery passing through the soleus muscle of the wearer, and increasing the blood flow rate caused by impaired blood circulation. It has the effect of minimizing or preventing the occurrence of diseases such as varicose veins and edema.

In addition, the main body 10 of the compression stocking unit extends from the edge of the lower end of the main compression unit 30 to the second band 12 and presses the lower calf side of the wearer, the ankle, and the Achilles tendon. , Rib tissue formed in the area outside the front and both sides of the lower end of the first band 11, and outside the calf covering compression part 20, the main compression part 30 and the sub compression part 40 to allow ventilation (Rib structure) By further providing the ventilation part 50, it has the effect of further improving the wearing comfort by promoting sweat absorption and discharge through ventilation.

In addition, the planar heating element 60, which is formed to extend in a band shape along the left and right side edges and the lower end edge of the calf covering compression part 20, and is built into the main body 10, and the planar heating element 60 are electrically connected to the main body ( 10), which is built on one side and further includes a piezoelectric element 70 that senses the pressure of the body 10 against the wearer's skin, thereby artificially forcibly promoting the wearer's blood flow to prevent blood circulation disorders due to diabetes, varicose veins, or varicose veins. It has the effect of minimizing or preventing the occurrence of diseases such as edema.

In addition, a plurality of stone pieces 65 that are spaced apart along the opposite surface of the planar heating element 60 facing the wearer's skin side and are made of a mixture of loess powder, tourmaline powder and titanium dioxide to give acupressure stimulation to the wearer's skin ) is further provided, thereby further promoting the wearer's blood flow together with the planar heating element 60 to minimize or prevent the occurrence of diseases such as blood circulation disorders due to diabetes, varicose veins or edema.

As described above, the compression band for applying compression to the lower extremities for improving blood circulation according to the present invention wraps the lower extremities with an appropriate compressive strength to prevent the occurrence of diseases due to blood circulation disorders such as varicose veins or edema caused by diabetes. It can be seen that the basic technical idea is to provide a compression band for improving blood circulation that can be prevented.

And, within the scope of the basic technical idea of the present invention, for those of ordinary skill in the art, the planar heating element 60 in the embodiment shown in FIGS. 3 and 4 is the edge of the calf covering compression part 20 Although it is shown to be formed along, it is not necessarily limited to this structure, for example, by adding a planar heating element 60 and a stone piece 65 over all or a part of the main pressing part 30 or the sub pressing part 40 Of course, many other modifications and applications are possible, such as promoting blood flow over a larger area of the skin on the leg side of the wearer.

10... the body
11...first band
12...2nd band
13...connection tube
20...Calf covering crimping part
30...Main compression
40...sub-compression section
41...tendon braces
42...compression band
50...Ventilation
51...upper vent
52...lower vents
60... Planar heating element
65...stone
70...Piezoelectric element

Claims (5)

In the compression band formed in a shape surrounding the wearer's feet and calves to apply pressure to the lower extremities to promote blood circulation through muscle compression and improve blood circulation to prevent edema,
Compression socks formed in a shape to wrap the wearer's feet under the ankle; and
Including; a compression stocking portion formed in a shape that wraps around the wearer's ankle from the top of the knee to press the calf;
The compression sock unit includes a dorsum pressing unit for pressing the wearer's foot and a sole pressing unit for pressing the sole of the wearer,
The compression stocking unit,
A first band forming an upper end surrounding each of the wearer's knee and popliteal periphery, a second band forming a lower end surrounding each of the wearer's ankle and Achilles tendon periphery, the lower edge of the first band and the a main body including a connecting tube which interconnects the upper end edges of the second band to form an intermediate portion surrounding the wearer's knee and ankle;
a calf covering compression unit provided in the connecting tube and disposed in a portion corresponding to the calf muscle and the soleus muscle on both sides of the calf muscle, and enclosing the inner and lateral branches of the calf muscle; and
a main compression part formed along the lower edge of the calf covering compression part and increasing the blood flow of the anterior tibial artery and the posterior tibial artery passing through the soleus muscle by applying pressure from both sides and lower ends of the soleus muscle to compress the soleus muscle; including,
The main body includes a sub-compression unit extending from the edge of the lower end of the main compression unit to the second band to press the wearer's lower calf side, ankle, and Achilles tendon, and areas outside the front and sides of the lower end of the first band; , The calf covering compression part and the main compression part and the sub-compression part are formed in the outer area of the sub-compression part further comprising a ventilation part made of a rib structure (Rib structure) to allow ventilation,
A planar heating element which is formed to extend in a band shape along the left and right side edges and the lower end edge of the calf covering compression part and is embedded in the main body, and is electrically connected to the planar heating element and is embedded in one side of the body, and for the wearer's skin Further comprising a piezoelectric element for sensing the pressure of the body,
Compression force on the lower extremities for improving blood circulation, which is arranged to be spaced apart along the opposite surface of the planar heating element facing the wearer's skin side, and further comprises a plurality of stone pieces for imparting acupressure stimulation to the wearer's skin compression bands to provide delete According to claim 1,
The first band, the second band, and the calf covering compression part have a mesh structure, the first band, the second band, and the calf covering compression unit have a 1x1 mesh structure, and the main compression part has a 1x1 to 1x1 mesh structure. Compression band for applying a compressive force to the lower extremities to improve blood circulation, characterized in that it has a 4x4 mesh structure. According to claim 1,
The compression strength of the main compression part is greater than or equal to the compression strength of the first band, the second band, and the calf covering compression part,
In the main body, the compression strength applied to the leg of the wearer from the main compression unit is the maximum, and the compression strength gradually increases from the outer side of the upper edge of the second band toward the main compression unit. Compression band to give compression force to the lower extremities for improvement. delete

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