WO2015101893A1

WO2015101893A1 - Footbed for shoe

Info

Publication number: WO2015101893A1
Application number: PCT/IB2014/067083
Authority: WO
Inventors: Patrick CREEMERS
Original assignee: Orthopedie Creemers Bvba
Priority date: 2014-01-02
Filing date: 2014-12-18
Publication date: 2015-07-09
Also published as: BE1021221B1

Abstract

The present invention relates to a footbed for a shoe, wherein the footbed is adapted to the foot length of a wearer of the shoe and comprises a metatarsal support, characterized in that, the metatarsal support is located at a metatarsal position X, wherein metatarsal position X is located at a distance situated between 0.50 cm and 1.5 cm with respect to a position Y, measured in the distal direction of the footbed, wherein Y is located at 2/3 of the foot length.

Description

FOOTBED FOR SHOE

TECHNICAL FIELD The present invention relates to a foodbed, a shoe provided with such a footbed, and a method for providing a personalized footbed to a shoe. The footbed is particularly suitable for those situations in which lowering the pressure on the forefoot is desired, for example, in the case of wearing shoes with high heels. BACKGROUND

Wearing orthopedicaliy inappropriate shoes can lead to severe disorders in the joints. The human foot is a complex and flexible biomechanical "device" which can adapt to a variety of surfaces and allows locomotion thereon. Problems with the forefoot and the toes are common and difficult to treat, as patients continue to walk in most cases, and therefore keep producing a continuous pressure on the foot.

Especially wearing high-heeled shoes, such as pumps, frequently leads to serious problems, such as, for example, prolapse of transverse arch, positive inclination of the heel joint, overburden of muscle groups (for example around the knee) overburden of the knee joint, beginning hallux valgi, hammer toes, metatarsalgia, pes piano valgi, clavus formation, etc. To counter this, in the past, inserts have been designed, for addition to an existing shoe, claiming that they will correct the posture of the wearer.

US 20120117818, for example, discloses an insert for a shoe, wherein the insert is provided with, inter alia, a metatarsal support. Such metatarsal support is an elevation which is placed under the forefoot. It is known that a metatarsal support is positive for the pressure distribution in the forefoot. However, it has been found that use of a standard metatarsal support may also lead to negative effects.

It was found by the present inventor that the position of the metatarsal support with respect to the footbed and the foot of the wearer is vital for a beneficial effect. It also appeared that the design of the metatarsal support is important. It is the object of the present invention to provide a footbed, whether or not already integrated in a shoe, wherein the position of the metatarsal support and the design thereof is optimized, so that it causes a pressure reduction in the forefoot and may prevent injuries and deformities. It is a further object of the present invention to provide a footbed which is integratable in a fashionable, but often orthopedically inappropriate shoe, such as a pump, and wherein the negative effects of wearing such a shoe are reversed by correcting the posture of the foot. SUMMARY

To this aim, the invention provides a footbed according to claim 1 and a shoe provided with such a footbed according to claim 17. The footbed is designed in such a manner as to reduce the pressure on the foot and to correct the posture of the wearer. For that purpose, the footbed is provided with specific support points on places specifically determined thereto. More particularly, the footbed is provided with a metatarsal support, wherein the position of the metatarsal support is optimized with respect to those known from the prior art. DETAILED DESCRIPTION OF THE FIGURES

Figure 1A shows a schematic representation of the various foot bones in a foot. Figure IB shows the position of the 5 metatarsophalangeal joints, respectively, I up to and including V.

Figure 2 is a representation of the metatarsal position with respect to a wearer's foot on a footbed according to an embodiment of the present invention.

Figure 3 is a schematic representation of a possible embodiment of a metatarsal support according to the present invention.

Figure 4 shows a side view of a metatarsal support according to an embodiment of the present invention. Figure 5 shows the placement of the medial arch support in a possible embodiment of the footbed according to the present invention. Figure 6 shows the placement of the lateral lip on a footbed according to a possible embodiment of the present invention.

Figure 7A and 7B show the placement of the pronation of the forefoot on a footbed according to a possible embodiment of the present invention.

Figure 8 shows the heel height on a footbed according to a possible embodiment of the present invention.

Figure 9 shows a possible embodiment of a footbed according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

In the coming years, the importance of fashion and comfort in the field of shoes will increasingly go hand in hand. However, to date hardly any shoes, and then especially high-heeled shoes like pumps, are offered which also are provided with a footbed which is also comfortable to wear and helps to prevent abnormalities to the foot and joints. The present invention aims to provide a footbed which is suitable for use in any kind of shoe, but specifically suitable for wearing in shoes with high(er) heels, such as pumps. Such shoes often cause a pressure increase on the forefoot, which can lead to abnormalities. By using the footbed according to the present invention, the posture of the foot is corrected.

In a first aspect, the present invention provides a footbed for a shoe, wherein the footbed is adapted to the foot length of a wearer of the shoe and comprises a metatarsal support. In the context of the present invention, the metatarsus should be understood as the forefoot. The forefoot or (5) metatarsus bones are a group of five long bones with a dorsally directed curvature, all having a base (at the third cuneiform and laterally the cuboid bone) a corpus and a caput (the distal dorsal curved part of the long bones), in the foot, located between the (3) cuneiform bones and the cuboid bone of the midfoot and the phalanges of the toes. In the absence of individual names, the metatarsus bones are numbered from the medial side (the side of the big toe) : first, second, third, fourth and fifth metatarsal bone or meta (often depicted in Roman numerals) (see Figure 1).

A metatarsal support or pellotte supports the metatarsals with the intention to push up or support a prolapsed frontal transverse arch, respectively the distal dorsally curved parts of the bones just behind the toes, just like the arch of a bridge.

In particular, the metatarsal position will be located at a distance between 0.50 cm and 1.5 cm in the distal direction of the footbed measured from a position Y located at (2/3^rd of the footbed length - 2 cm), wherein the latter position is measured from the extreme heel point of the footbed. If the position X is determined with respect to the foot length, it will be situated at a distance of between 0.50 cm and 1.5 cm in the proximal direction measured from a position Y located at 2/3^rd of the foot length.

In the context of the present invention, the term "stitch" is to be understood as a commonly used measure of length in the sector of shoes and orthopedic inserts, orthotics and footbeds. Herein, the French or English "stitch" length measurement can be used. The French stitch is equal to 2/3 centimeter or also 6 2/3 mm, so that 3 French stitch is equal to 2 centimeters. The English stitch is 1/3" (inches), thus 8.467 mm. In the present invention, when the term "stitch" or "stitches" is used, in each case, the French length measurement will be intended, unless otherwise stated.

With the footbeds known in the prior art, metatarsal supports are standardly placed in the middle of the footbed or at a position corresponding to 2/3^rd of the foot length. However, this position appears to have adverse effects.

The position X of the metatarsal support is determined in the present invention according to the following formula :

X= (2/3^rd of (the footbed length - 2 cm)) + (0.50 cm to 1.5 cm)

Or also

X= (2/3^rd of (the footbed length -3 stitches) + (0.75 to 2.25 stitches)

In other words, the metatarsal support will be located at a position X, which is situated at a distance of 0.50 cm to 1.5 cm (0.75 to 2.25 stitches) with respect to a position Y, wherein Y is located at a position of 2/3^rd of the (footbed length - 2cm).

The footbed length is herein correlated to the foot length of the user, wherein : Footbed length = foot length + 2cm (3 stitches)

In a further preferred embodiment, the metatarsal support will be located at a position X, which is situated at a distance of 0.75 to 1.25 cm with respect to position Y.

In a more preferred embodiment, the position X of the metatarsal support is determined according to:

X= (2/3^rd of (the footbed length - 2 cm) + 1 cm

Or also:

X = (2/3rd of the (footbed length - 3 stitches) + (1.50 stitch)

If the position X of the metatarsal support is determined in correlation with the foot length, then the formula will therefore be as follows:

X = (2/3^rd of the foot length) + (0.50 cm to 1.5 cm)

or also

X = (2/3^rd of the foot length) + (0.75 to 2.25 stitches)

In a further preferred embodiment, this is:

X = (2/3^rd of the foot length) + (0.75 to 1.25 cm) More preferably, position X will be:

X = (2/3^rd of the foot length) + (1 cm)

Or also:

X = (2/3rd of the foot length) + (1.5 stitch) In other words, the metatarsal support will, in a preferred embodiment, be located at a position X, which is situated at a distance of 1 cm with respect to a position Y (in the distal direction of the footbed or foot), wherein Y is situated at a position 2/3rd of the foot length.

By placing the metatarsal support more to the front on the footbed (with respect to those known in the prior art), and specifically to a position determined by means of the formula according to the present invention, a maximum pressure reduction in the forefoot is achieved, without negative effects being caused hereby. A placement which is directed too far to the front could prevent a proper blood circulation to the toes, while a placement too far to the back causes painful stings to the midfoot. Example 1 represents the position of the metatarsal support in stitches and with respect to the foot size.

In particular, the shape of the metatarsal support will also be decisive for the functioning and its support function.

Several shapes are suitable as metatarsal support and will be known to the skilled person. This can be, for example, round, elliptical, oval, or triangular. Preferably, the metatarsal support will end in a sharp tip. In particular, the metatarsal support will comprise an essentially triangular circumference. In a further preferred embodiment, it is provided with a curved surface side, of which the curvature is adapted to the curvature of the foot at the level of the frontal transverse arch. Preferably, the metatarsal support with the foremost point (point located closest to the toes) will be located on the metatarsal position X.

In the case of a triangular shape, the short side of the metatarsal support will be located at the level of a metatarsal position on the footbed.

In particular, at the footbed according to the present invention, the metatarsal support will comprise a virtual top angle a, wherein this top angle is formed by the two longest sides of the metatarsal support, and it has a size comprised between 30° and 45°, more preferably between 35° and 45°, for example, 40°.

The metatarsal support preferably will also comprise a virtual angle β and y, formed by the short side of the support and one other, longer side, wherein angle β and Y has a size between 60° and 80°, more preferably between 65° and 75°, for example, about 70°.

In addition, the metatarsal support will contain a maximum length LI and maximum diameter Dl, wherein the ratio between the maximum length LI and the maximum diameter Dl of the metarsal support is between 1 : 2-2: 1, more preferably 1.5 : 2-2: 1.5. Preferably, the ratio is between 1 and 2, more preferably 1.3 and 1.8, for example, 1.5. As indicated, the metatarsal support will comprise a curved surface side, directed towards the foot side of the wearer. The thickness of the metatarsal support will preferably not be uniform. Preferably, the thickness will increase, whereby the lowest point is located at the level of top angle a. The highest point is preferably located between the metatarsal heads, between caput 2 and 3 of the metatarsals. In particular, the difference in height between the lowest located and highest located point in cross-section of the metatarsal support will be situated between 0.5 and 1.2 cm. The metatarsal support has a top angle in order to nicely fill the cavity right behind the metatarsophalangeal joints.

It is found that each of the above features of the metatarsal support according to the present invention contribute, together or separately, to the effect of the present invention. A metatarsal support according to the present invention will prevent most abnormalities of the toes.

In a further embodiment, the footbed according to the present invention will comprise a medial arch support. Two of the most common orthopedic disorders are kinked feet and flat feet. A kinked foot is caused by an inwardly tilting heel bone and can be counteracted by sufficient support of the heel bone. A so-called flatfoot is caused by the sagging of the rear transverse arch of the foot arch (metatarsal).

In these conditions, providing a medial arch support may offer a solution.

A medial arch support is a support of the inside of the heel/foot. It concerns standard shapes which can avoid many disorders. Research reveals that medial arch support inserts prevents the inward tilting of the sustentaculum tali, the ankle (pronation) when walking and running. A medial arch support prevents the sagging of the foot arch by moving the pressure to the medial structures of the foot. However, incorrect placement or height thereof can lead to lateral tilting of the foot (supination).

In the footbed according to the present invention, the medial arch support will preferably extend from the medial side of the rear foot of the wearer up to a zone which corresponds to the beginning of the first metatarsal (meta I) of the wearer's foot. Preferably, the highest point of the medial arch support will be located just in front of the sustentaculum tali or at the level of the joint between the talus and the navicular bone. This has the advantage that the front side of the medial arch support will rest under the metatarsals and has a supporting effect. The top part at the level of the sustentaculum tali has a correcting effect and pushes the foot upwards. The back part pushes against the calcaneum and thereby corrects the position of the calcaneum.

The medial arch support provides a support for the weakest point of the foot. The medial arch support needs to support the apical parts of the bones of the foot arch : the base of the first metatarsal, the medial cuneiform bone and the talus through the navicular bone and the sustentaculum tali of the calcaneus. The sustentaculum tali is perpendicular to the leg, and since it is more medially located, the foot will more easily sag to medial. If a support is provided underneath the sustentaculum tali, the navicular bone will automatically follow as well as the rest of the foot. Preferably, the highest point of the arch will be situated at the level of the talus bone and navicular bone, as these tilt inwards the farthest. More preferably, the highest point will be situated just near the talonavicular joint (between navicular bone and talus). Preferably, the medial arch support will comprise a high medial profile and sharp inclination angles.

The footbed according to the present invention preferably comprises a lateral lip. Research shows that wearing high heels causes the lateral sliding in shoes. This is often further exacerbated by the flexible textile material of a support. The feet often slide off because of the medial arch support, and give a pronation. This sliding can be counteracted by placing a counter-support at the lateral side of the foot. In particular, the lateral lip will extend from the rear side of the footbed up to a zone which corresponds to the front of the heel bone of the wearer. Preferably, the highest point of the lateral lip will be located at the level of a zone corresponding just behind the outer ankle (lateral malleolus) of the wearer's foot. Or in other words, the outmost lateral rear part of the heel bone. In a further preferred embodiment, the maximum height will be 20 mm. Depending on the size of the shoe, the lateral lip may be 3 up to 5cm wide.

The footbed according to the present invention preferably comprises a pronation in the forefoot. When heels are worn, not only the heels threaten to laterally slide off, but also the toes. These are then pressed together in the front lateral part of the shoe. Through a slight elevation towards the little toe, said sliding can be limited. A pronation is the tilting of a joint towards the inside. Through the pronation of the forefoot, an increased pressure on the smaller toes can be countered. Preferably, the pronation will start at the level of the hallux of the wearer's foot and in an arch up to the proximal phalanx of the little toe of the wearer's foot. More preferably, it will fully encompass the 4 smallest toes. In a further embodiment, the highest point of the pronation will be located just below metatarsophalangeal V joint. The starting point of this zone is situated right in front of the tuberosity of the metatarsal bone V. More preferably, the highest point is between 2 and 5 mm, most preferably 3 mm.

The pronation provides a counter-pressure of the medial support distal to the foot in such a way that the forefoot does not slide off of the footbed, the pronation also ensures a smaller burdening for the other intrinsic foot muscles. The footbed according to the present invention, in an embodiment, may be provided at the heel zone with an elevation, which gradually descends in the direction of the distal end of the footbed up to a zone corresponding to a zone just behind the meta-heads of the wearer's foot. Preferably, the elevation is wedge-shaped and the elevation has an inclination of 3 to 7°, more preferably has 5°. This elevation can be omitted with the use of the footbed according to the present invention in high-heeled shoes.

When the foot is standing flat on the ground, the medial foot arch is very low and it is much easier for the heel bone to further sag. Because of the elevation at the rear of the foot, the calf will tensen and a natural steeper position of the calcaneum is obtained. The heel bone straightens a bit as it were, as a result of which it's slightly easier for the foot to support herself. The sustentaculum tali, in this way, is standing higher above the heel bone and, like that, pushes the rest of the foot upwards. This elevation may vary according to the foot size.

In particular, the footbed will substantially be manufactured from a material with a hardness of between 30 and 45 shore, more preferably 35 and 40 shore. This is important for the functional operation of the footbed, as well as for the comfort of the wearer. Examples of a suitable material for the footbed are, among others: thermoplastic elastomers, leather, polyester, polypropylene, polyethylene, polyurethane, polyurea, cellular urethane, cork, polystyrene, latex, nylon, carbon or glass fibers and thermosetting or thermoplastic resins, plastazote, ethylene vinyl acetate (EVA) foams, vinyl foam, vinyl film, polyurethane film, latex foam, polyurethane foam, styrene - butadiene - rubber, NBR, acrylonitrile -polymers and copolymers, styrene - butadiene-styrene, acrylonitrile - butadiene - styrene, poly vinyl chloride ( PVC ), ethylene- rubber, silicone rubber (SIR), silicone elastomer, acrylic rubber ( ACM ), butadiene rubber (BR), butyl rubber ( IIR ), CSM ( CSM ) / hypalonthylene propylene diene monomer ( EPM , EPDM ), fluoroelastomers ( FKM ), isoprene rubber (IR ), nitrile rubber ( NBR ), perfluoroelastomer ( FFKM ), polychloroprene ( CR ), Thiokol (PSR), styrene butadiene rubber (SBR), or a combination of the preceding.

In a further preferred embodiment, the footbed will be provided with a surface layer, preferably a surface layer between 0.5 and 1.5 mm, more preferably 1 mm. Suitable materials therefore is, for example, PPT. This surface layer is preferably adhered to the footbed.

The footbed may further be provided with an adhesive layer for the attachment and correct positioning of the footbed in a shoe.

In particular, the footbed according to the present invention may already be provided in the shoe during the production of the shoe. In another preferred embodiment, the footbed is suitable for use in an existing shoe.

The footbed may hereby be tailor-made to the wearer, taking into account the measurements of the wearer's foot or produced standardly and offered per shoe size.

In a second aspect, the present invention is also aimed at a shoe provided with a footbed according to one of the preceding embodiments. The footbed according to the present invention is suitable for any type of shoe, men's or women's shoe.

In principle, this may be any type of shoe, but preferably this is a shoe with a heel height. More preferably, this is a shoe with a heel height of at least 5 cm. In particular, the shoe is a pump, stiletto, peep-toe, or sandal. In a last aspect, the present invention comprises a method for providing a footbed/orthosis to a confection shoe. Preferably, this method will comprise the following steps: - measuring one or both feet of a wearer of the shoe;

- optionally measuring the pressure points of one or both feet; and

- manufacturing a footbed/orthosis, taking into account the measured values. In particular, the footbed will be provided with a metatarsal support situated at a point X at a distance located between 0.50 cm and 1.5 cm in the distal direction of the footbed and with respect to a position Y located at 2/3 of the foot length. In another embodiment, the location of the metatarsal support will be adapted to the individual blueprint measurement per foot per patient. Measuring the pressure points of the foot may be done by means of conventional measurement methods such as a Blueprint device, or by means of scanning the foot. Measuring the foot may be obtained by use of a pressure scanner, wherein the wearer in question will be asked to stand on the pressure scanner or 3D scanner.

The present method makes it possible to offer a personalized footbed to a wearer, wherein the footbed is adapted in such a way to the needs and specific position of the foot.

DESCRIPTION OF THE FIGURES

The invention will now be further disclosed by means of figures, without in any case being limited thereto. Figure 2 shows a metatarsal position X of a metatarsal support 2 with respect to the wearer's foot on a footbed 1 according to an embodiment of the present invention. The metatarsal support 2 has an essentially triangular shape, wherein the shortest side A of this metatarsal support is placed at position X. This corresponds to the foremost point 9 of the metatarsal support 2. The metatarsal support 2 will preferably, with top angle a, formed by sides B and B', be directed towards the heel side of the foot (Figure 3). This heel side corresponds to the proximal side 7 of the footbed 1. The side at the level of the toe tips can be considered as the distal side 8 of the footbed 1. Angles γ and β are formed by, respectively, side A and side B' and side A and side B.

Figure 4 shows a side view of a metatarsal support 2. Preferably, the metatarsal support 1 will comprise a curved side surface, directed towards the foot side of the wearer. The thickness/height of the metatarsal support will preferably not be uniform. Preferably, the thickness will increase, whereby the lowest point is situated at the level of top angle a (point HO). The highest point HI is preferably situated at about 5 mm distally from the widest point of the foot, ideally between the metatarsal heads, between caput 2 and 3 of the metatarsals.

In another or further embodiment, the footbed 1 may comprise a medial arch support 3. Figure 5A represents the placement of the medial arch support 3, both with respect to the footbed 1, and to the foot of a wearer. The medial arch support extends from the medial side of the rear foot of the wearer up to a zone which corresponds to the beginning of the first metatarsal (meta I) of the wearer's foot. The highest point of the medial arch support is situated just below the sustentaculum tali. The continuous line from Figure 5B represents the flow of this medial arch support 3 with respect to a foot of a wearer.

Figure 6 shows the placement of the lateral lip 4 on a footbed 1. The lateral lip 4 extends from the rear side (proximal side 7) of the footbed 1 up to a zone which corresponds to the front of the heel bone of the wearer.

The footbed may be provided with a pronation 5 of the forefoot. Figures 7A and 7B show the placement of this pronation 5 of the forefoot on a footbed 1. In an embodiment of the present invention, this may, for example, be a 3 mm pronation, which runs from between the first and second radius up to an inclined point just before base meta V. It descends to zero forwards and begins, just before the base of metatarsal bone V, from zero to 3mm wherein it reaches its full thickness just below (Figure 7B, dotted line) or 1 cm behind meta (Figure 7A).

A heel height 6, as can be seen on Figure 8, ensures that the heel bone will not sag. By elevating the foot at the back, the calf will tensen and a natural steeper position of the calcaneum is obtained. The heel height 6 is obtained by a wedge- shaped insert. This heel height may vary dependent of foot size and is preferably between 1 and 2 cm. The heel height 6 declines in the direction of the distal end of the footbed 1. The heel height 6 is optional when used in shoes (e.g. pumps) with high heels.

The footbed 1 from Figure 9 shows a preferred embodiment, wherein the footbed omprises a metatarsal support 2, a medial arch support 3, a lateral lip 4, a pronation 5 of the forefoot and optionally a heel height 6, as described in detail above.

EXAMPLE

The invention will now be further disclosed by means of the following example, without in any case being limited thereto.

Example 1

Table 1 shows a preferred location of a metatarsal support according to the present invention with respect to the shoe size:

Table 1

References of figures

1: footbed

2: metatarsal support

3: medial arch support 4: lateral lip

5: pronation of the forefoot

6: heel height

7: proximal side footbed

8: distal side footbed 9: front metatarsal support

10: rear metatarsal support

Claims

1. A footbed for a shoe, wherein the footbed is adapted to the foot length of a wearer of the shoe and comprises a metatarsal support, characterized in that, the metatarsal support is located on a metatarsal position X, wherein metatarsal position X is located at a distance situated between 0.50 cm and 1.5 cm with respect to a position Y, measured in the distal direction of the footbed, wherein Y is located at 2/3 of the foot length.

2. Footbed according to claim 1, characterized in that the metatarsal support comprises an essentially triangular circumference and the short side of the metatarsal support is situated at the level of metatarsal position X.

3. Footbed according to claim 2, characterized in that the metatarsal support comprises a virtual top angle a, formed by the two longest sides of the metatarsal support, wherein this top angle has a size comprised between 30° and 45°.

4. Footbed according to claim 2 to 3, characterized in that the metatarsal support comprises a virtual angle β and y, formed by the short side and one other side of the metatarsal support, wherein angle β and y has a size comprised between 60° and 80°.

5. Footbed according to one of the preceding claims, characterized in that the ratio between the maximum length LI and the maximum diameter Dl of the metatarsal support is between 1 : 2-2: 1, more preferably 1.5 : 2-2: 1.5.

6. Footbed according to one of the preceding claims, characterized in that the height difference between the lowest situated and highest situated point in cross- section of the metatarsal support is between 0.5 and 1.2 cm.

7. Footbed according to one of the preceding claims, characterized in that the footbed is provided with a medial arch support, extending on the medial side of the rear foot of the wearer up to a zone which corresponds to the beginning of the first metatarsal (meta I) of the wearer's foot.

8. Footbed according to one of the preceding claims, characterized in that the footbed comprises a lateral lip, extending from the rear of the footbed to the front of a zone corresponding to the heel bone of the wearer's foot.

9. Footbed according to claim 6, characterized in that the highest point of the lateral lip is situated at the level of a zone corresponding to the outer ankle (lateral malleolus) of the wearer's foot.

10. Footbed according to one of the preceding claims, characterized in that the footbed is provided with a pronation in the forefoot.

11. Footbed according to one of the preceding claims, characterized in that a distal heel zone of the footbed is provided with an elevation, gradually descending in the direction of the distal end of the footbed up to a zone corresponding to a zone right behind the meta heads of the wearer's foot and an inclination of 3 to 7°, more preferably 5°.

12. Footbed according to one of the preceding claims, characterized in that the footbed has a hardness of between 30 and 45 shore, more preferably 35 and 40 shore.

13. Footbed according to one of the preceding claims, characterized in that the footbed is provided in the shoe during the manufacturing of the shoe.

14. Footbed according to one of claims 1 to 13, characterized in that the footbed is suitable for use in an existing shoe.

15. Shoe provided with a footbed according to one of claims 1 to 14.

16. Shoe according to claim 15, characterized in that the shoe has a heel height of at least 5 cm.

17. Method for providing a footbed to a shoe, comprising :

- measuring one or both feet of a wearer of the shoe;

- optionally measuring the pressure points of one or both feet; and

- manufacturing a footbed, taking into account the measured values, characterized in that the footbed is provided with a metatarsal support situated at a point X at a distance located between 0.50 cm and 1.5 cm with respect to a position Y located at 2/3 of the foot length.