EP1673991A2 - Compression stockings for sport practice - Google Patents

Abstract

The tights are made from assembled pieces of stretch textile materials having three different degrees of stretch - the first (11, 12, 13, 21) with normal elasticity, the second (2, 3, 4, 7, 9) providing support, and the third (8) with higher elasticity. The first and second types have more or less the same degree of elasticity in a lengthwise direction along the garment, while the second ones have a lower transverse elasticity than the first, e.g. in a ratio of 1 : 2 or 1 : 3. In the knee zones the pieces are assembled to allow an angle of flexure that varies according to the sport being pursued. At least one first or second piece has a false seam (15') that forms an oblique line of reduced elasticity. Another second piece with a support effect covers the internal and external muscles of the lower leg.

Description

The present invention relates to a tights, that is to say an article of clothing that covers at least the lower part of the body, from the waist to the two ankles and possibly partially the upper body. More particularly, it relates to a pantyhose which has localized zones with a restraining effect and which is specially designed for practicing a sport in which the legs are animated with repetitive movements, especially running or cycling.

The contention is well known in the medical field, especially with regard to socks or stockings. This is in the case of textile articles made of an elastic base material, for example from spandex yarns, the knitting mode of which makes it possible to exert a differentiated compression effect according to overlapping zones, the ankle, calf or thigh. Socks or compression stockings are recommended when it comes to improving blood circulation.

In the sports field, it is known to implement a compressive effect in the so-called "strapping" technique, consisting of surrounding a joint with an elastic band in order to stabilize it. By extension, this technique of "strapping" is also applied for the maintenance of muscle masses, for example around the thigh.

It has already been proposed all kinds of clothing items covering certain parts of the body, with a localized compression effect, compression being exerted only on certain specific areas, this compression being capable of conferring one or the other the benefits of restraint, namely improving blood circulation, lymphatic drainage, proprioception, maintaining muscle mass and / or stabilizing joints.

In general, these articles consist of a base support on which is reported at least locally a compression band. The base support has a normal elasticity that does not provide a restraining effect. The contention band has a lower elasticity, which, when wearing the article, provides the localized compressive effect that is sought. This compression band may be formed of a textile piece made of a less elastic material than the base support and reported for example by gluing or sewing. It may also be a localized treatment of the base support with an impregnating agent modifying the elasticity of the base support in the impregnated zone.

Such articles are known in particular from documents WO-91/01704 and EP-0.519.135.

The present invention relates more particularly to an article of clothing which consists of a tights specifically designed for the practice of a sport in which the legs are animated repetitive movements, including running or cycling and which has a restraining effect localized, mainly for the support of the muscular masses and the maintenance of the knee joint.

Running, whether long or medium distance running or mountain running, commonly referred to as a raid, results in repetition of the same movements of the lower limbs, muscles and joints working in the same way with each stride . The first quality of a garment, specially designed for the race, is not to be an inconvenience for the runner and especially not to give rise to mechanical stress may be a complementary source of effort and fatigue. It's the same for cycling.

According to the applicant, the application to a pantyhose for such sports techniques advocated in documents WO-91/01704 and EP-0.519.135 for the manufacture of articles with localized contention necessarily leads to a panty not having this quality first, but on the contrary having the disadvantage of creating a mechanical stress source of discomfort and fatigue for the runner.

The present invention is to overcome this disadvantage by proposing a tacky, localized contention effect, consisting of extensible textile parts, assembled to each other, namely first pieces of normal elasticity, second pieces to contention effect and possibly third pieces with higher elasticity. In addition, all the first and second pieces have, in the assembly, substantially the same average elasticity in the direction longitudinally of the panty and the second pieces have, in the transverse direction, an elasticity which is less than half of the elasticity of the first pieces.

Thus, according to the particular provisions of the present invention, the adhesive has substantially the same elasticity over its entire height, in the longitudinal direction, that is to say in the general direction of the lower limbs; this elasticity, called average, is chosen so as not to cause discomfort or mechanical stress during repetitive movements of the athlete's lower limbs. Therefore, the presence of the second compression parts does not alter the elasticity of the adhesive in the longitudinal direction, unlike what happens when the compression zones are strips or obtained by impregnation of a processing agent locally modifying the elasticity of the base support, as in the aforementioned documents.

The notion of average elasticity takes into account the normal variations of mechanical properties in any textile manufacture, variations resulting from the differences due in particular to the provenances of the raw materials, to the conditions of weaving or knitting, to the adjustments of the trades.

The variations, plus and minus, with respect to an average value can be of the order of 5 to 10%, sometimes even more.

According to the present invention, the compression effect is obtained solely by the difference in elasticity, in the transverse direction of the adhesive, at the level of the second pieces. Preferably, the mean transverse elasticity difference between the first and second compression members is in the ratio of 2 to 3.

For example, the average elasticities in the longitudinal directions of the first and second parts are respectively 100% and 97%, while their average elasticities in the transverse direction are respectively 130% and 50%.

In an alternative embodiment, the first and second pieces being of the woven type with warp yarns and / or of the knitted type with mesh columns, the warp yarns and / or the mesh columns, have in the assembly all the same longitudinal direction. We understand that the respect of this provision requires a particularly precise confection, but it is at this price that can be obtained the desired effects for the tights of the present invention.

Preferably, the assembly of the parts is carried out by seams of the flatlock or suture type, advantageously by using foam-type yarns and with sewing thread tensions which are set at values lower than those of the conventional seams. to avoid that the presence of seams creates a heterogeneity in the average elasticities, especially in the longitudinal direction, of the assembled parts.

In a preferred embodiment, the assembly of the first and second parts at the knee is made with a bent construction at a bending angle corresponding to an intermediate position taken by the lower limb during repetitive movements. Being a tights for running, this angle is 20 ° to 25 °, especially of the order of 20 ° for a tights for running in the mountains. In addition, in this case, the panty has a third piece with superior elasticity on the back of the knee. In the case of a cycling tights, the bending angle is of the order of 30 °. The fact that the pantyhose, as soon as it is made, adopts this average configuration makes it possible to limit the forces used during the flexion-extension movements of the lower limbs, knowing that when standing, when stationary, it already exists at the knee bending angle of the order of 10 °. This particular arrangement on the one hand does not hinder the extension of the leg and on the other hand limits the folds likely to form on the back of the knee during bending.

The upper elastic part, possibly located on the back of the knee, allows to absorb, during the extension of the knee, the sizing difference due to the curved construction, without causing the implementation of additional stretching forces .

This third piece with higher elasticity is, for example, a textile mesh net. Such a net has a high permeability to air, which can provide a complementary aeration effect.

In an alternative embodiment, at least one first piece comprises at least one false seam, creating a line of reduced elasticity, arranged between two second pieces obliquely to the longitudinal direction. This false seam avoids the possible spacing of the two second pieces, compared to their normal positioning which could intervene because of the change of distribution of the volumes in the sticky during the work of the muscles.

In an alternative embodiment, a second compression piece is disposed in the portion of the panty which is intended to cover, at the level of the leg, the inner and outer twin muscles and the medial lower part of the calf.

In an alternative embodiment, a second piece of contention effect is disposed in the portion of the adhesive intended to cover, at the level of the calf, the anterior tibialis muscle.

In an alternative embodiment, a second compression piece is disposed in the portion of the tights intended to cover, around the knee joint, the internal and external lateral ligaments, the anterior tibial tuberosity, the patellar ligament and the entire anterior part of the knee joint.

The ball is preferably covered by a first part or possibly a third part, said first or third part having for example a substantially circular, oblong or rectangular configuration whose upper and lower sides are a convex curvature.

In an alternative embodiment, a second V-shaped part is disposed in the part of the adhesive intended to cover, according to the wings of the V, on the one hand, the anterior part of the knee joint, at the level of the base. V, and on the other hand, the anterior aspect of the thigh. The first wing of the V covers the outer vastus (Vastus lateralis) and the tensor of the fascia lata (Tensor fasciae latae) to terminate on the anterior superior iliac spine at the waistband of the tights. The second wing of the V covers the vastus medialis (Vastus medialis) and the muscular group of adductors.

In an alternative embodiment, a second piece of contention effect is disposed in the portion of the tights intended to cover, on the rear part, the muscular group of the ischiostrures of the upper lateral part to the lower medial part.

In an alternative embodiment, a second compression piece is disposed in the front portion of the tights, intended to cover the abdomen, in the form of a transverse band whose central portion is higher than its two side portions.

In an alternative embodiment, a second piece of contention effect is disposed in the rear portion of the tights intended to cover the lower back, above the gluteus maximus muscles in the form of a transverse band. Preferably, in this case, a third piece formed of an open mesh is disposed above said second piece, at the waist, in order to obtain better evacuation of sweat.

In an alternative embodiment, a third piece of higher elasticity is disposed in the portion of the tights intended to cover the crotch zone, originating along the sub-gluteal sulcus to join the internal femoral tuberosity.

• les figures 1 à 3 correspondent au premier exemple en vue de face pour la figure 1, en vue arrière pour la figure 2 et en vue de côté pour la figure 3 ;
• les figures 4 et 5 correspondent au deuxième exemple en vue de face pour la figure 4 et en vue arrière pour la figure 5 et,
• les figures 6 à 8 correspondent au troisième exemple en vue de face pour la figure 6, en vue arrière pour la figure 7 et une vue de côté pour la figure 8.

The present invention will be better understood on reading the description which will be made of three preferred embodiments of pantyhose, the first specifically designed for running long and medium distances, the second for running in the mountains or raid and the third for cycling with localized contention zones, illustrated by the accompanying drawing in which:

• Figures 1 to 3 correspond to the first example in front view for Figure 1, in rear view for Figure 2 and in side view for Figure 3;
• FIGS. 4 and 5 correspond to the second example in a front view for FIG. 4 and in a rear view for FIG.
• Figures 6 to 8 correspond to the third example in front view for Figure 6, in rear view for Figure 7 and a side view for Figure 8.

The pantyhose of the present invention is primarily intended for athletes practicing a sport in which the legs are animated repetitive movements, including the race of medium and long distances, the raid or the bike.

It is constituted, at least in the portion that is intended to cover the lower part of the body, from the waist to the two pegs, by assembling three types of parts, according to a seam technique that limits or eliminates the risks heterogeneity of elasticity between the assembled parts, as explained below. The edges of the assembled pieces are juxtaposed, without any superposition.

The parts referred to hereinafter as the first pieces are cut in an elastic textile material of normal elasticity. This is for example a knit-proof knit armor called charmeuse, making the order of 170 g / m ² , consisting of 80/20 son polyamide-elastane.

Such a knit has an average elasticity in the longitudinal direction, according to the mesh columns, resulting in an elastic elongation of 100% and in the transverse direction by an elastic elongation of 130%.

The parts referred to hereinafter as second parts are cut from an elastic textile material whose mean elasticity in the transverse direction is significantly lower than that of the first parts in a ratio of at least 2 and preferably in a ratio of 2 to 3. This material allows a contention higher than 7mmHg.

In an exemplary embodiment, it is a knit-proof knit charmeuse armor, but inverted, making the order of 240 g / m ² , consisting of son 80/20 microfiber polyamide, elastane.

For the measurement of the average elasticity, the elongations are calculated under a force of 15 N. In the above examples, the mean elasticities, in the longitudinal direction, of the first and second parts of the adhesive are almost identical, with a difference of less than 5%, while the average elasticity difference between the first pieces and the second pieces, in the transverse direction, is in a ratio of 2.5.

The parts, hereinafter referred to as third parts, are parts whose average elasticity is greater than that of the first part. It is in particular a mesh net relatively open, also ensuring a ventilation effect in the areas it covers.

In the first example which is illustrated in Figures 1 to 3, the tights 1 for men is intended for runners of medium and long distances. It is formed by the assembly of eighteen panels consisting of eight panels [C, C ', I, J, K, L, N, N'] having the structure of the first parts with normal elasticity, six second panels [A , A ', B, B', F, H] having the structure of the second compression members, having a lower transverse elasticity than that of the first pieces and four third panels (D, D ', E, G,) having the structure of thirds pieces, formed of an open mesh net. In the figures, the first panels are shown without hatching, the second panels with horizontal hatching and the third panels with oblique hatching.

This assembly is made such that all the mesh columns of the first and second assembled parts have the same direction, corresponding to the longitudinal direction of the adhesive, that is to say to the vertical direction when the adhesive is carried by a user standing.

In addition, this assembly is made according to a bent construction at the joint of each knee at a bending angle of the knee of the order of 20 ° to 25 °.

The assembly is done by sewing the flatlock type or suture, using foamed son, for example textured, the framer. It is desirable to adjust the tension of the threads of the sewing machines to a value lower than that currently used in order to limit the negative effect that the presence of the seams may have on the uniformity of the average elasticities of the assembled parts, particularly in the direction longitudinal.

The distribution of the various panels in the manufacture of the tights and the areas they cover on the body of the runner will be described below with reference to Figures 1 to 3.

It should be noted that the number of panels used in the clothing industry may differ, particularly in the case of a tights for men or women, and that what matters is not the number of panels but the distribution of the panels. first, second and third pieces on the relevant parts of the body of the pantyhose. In the remainder of the description, use will be made of the term panel in the precise description of the embodiment illustrated in the figures and the terms first, second and third parts as regards their location located on the areas of the body.

At the level of the lower part of the leg, corresponding to the calf, a second piece 2 covers the inner and outer twin muscles (Gastrocnemius medialis and Gastrocnemius lateralis) as well as the medial lower part of the calf. More precisely, this second piece 2 covers the entire inner part of the calf starting along the internal edge of the tibia (Margo medialis), between the base of the internal tibial tuberosity (Condylus medialis) and stopping above the medial malleolus (Malleolus medialis) along the inner edge of the tibia. This second piece extends to the middle of the back of the calf, in the extension of the Achilles tendon, for its lower part and covers the lateral twin muscle for its upper part, following the anatomical pattern described by the belly of this muscle in its lateral and low part. This second piece 2 is therefore asymmetrical because, starting from a horizontal line crossing the twin muscles at the height of the base of the internal tibial tuberosity, it extends to the base of the glue 1 for its medial part while it stops under the internal twin muscle for its lateral part, following the curvature formed by the belly of this muscle for the lateral and low part. This second piece 2 is part of two panels A, A '.

Another second piece 3 covers the anterior tibialis muscle. This second piece 3 is delimited by the crest of the tibia (Margo anterior) and a vertical line passing through the medial malleolus and the head of the fibula (Fibula). This second piece 3 extends towards the knee. This second piece 3 corresponds to the panels B, B 'which end in their lower part at the base la and 1'a sticky 1 and extend in their upper part to the panels A, A'.

At the level of the part of the body corresponding to the knee, a second piece 4 covers the lateral ligaments (Tibial Collateral ligament) and external ligament (Collateral ligament fibulare), the anterior tibial tuberosity (Tuberositas tibiae), the patellar support (Lig. patellae) and the entire anterior part of the knee joint. In the example of the figures, this second piece 4 is part of the panels A, A '.

The patella is covered either by a first piece 5, as shown in Figure 1, or possibly by a third piece, depending on the climatic conditions in which the use of the tights is envisaged. This first piece constitutes the panels C and C '. It can have a circular configuration, or oblong or rectangular with its two upper and lower sides having a convex curvature.

A third piece 6 covers, on the back of the knee, the entire popliteal area (Fossa poplitea) and ends in its upper part by a horizontal line placed about 5 cm above the upper part of the femoral tuberosities internal and external (Epicondylus medialis and Epicondylus lateralis). This third piece 6 corresponds to panels D and D '.

At the part of the body corresponding to the thigh, a first piece 7 covers the anterior face of the knee and extends at the thigh forming a V on the anterior face thereof. The first wing 7a of the V covers the outer vastus (Vastus lateralis) and the tensor of the fascia lata (Tensor fasciae latae) and terminates in the anterior superior iliac spina (Spina iliaca anterior superior) at the waist, corresponding to the upper part 1b of the glue 1. This flange 7a covers the iliotibialis band (Tractus iliotibialis) and terminates for its posterior lateral part by a straight line extending the lateral lateral ligament of the knee, passing through the greater trochanter (Trochanter major) and extending to the upper part 1b.

From this wing 7a extends an extension 7b on the back of the thigh, crossing the muscular group of the hamstrings, from the upper lateral part to the lower medial part. In its upper part, this extension 7b emphasizes the gluteal muscles along the sub-gluteal fold. It descends obliquely from the upper third of the femur to the internal femoral tuberosity and covers, for its internal part, the muscular group of the adductors.

The second V-shaped piece 7 comprises a second wing 7c, which covers the vast internal (Vastus medialis) and which goes back to join the extension 7b of the first wing 7a at the adductors. The connection between this extension 7b and the second flange 7c is achieved by the assembly on itself of the corresponding panel A or A 'by a vertical seam, passing through the internal femoral tuberosity (Epicondylus medialis). The extension 7b and the second wing 7c end, for their upper limit, 2 or 3 centimeters below the fold of the crotch, at the symphysis pubis (Symphysis pubica).

The zone of the crotch is covered with a third piece 8 which corresponds to the panel E.

At the level of the area of the body corresponding to the belly, a second part 9 covers the abdomen transversely; its lower edge has a V configuration so that the height at its center 9a is greater than the height of each on its sides. This second piece 9 corresponds to the panel F whose upper part corresponds to the upper edge 1b of the glue 1.

In the body portion corresponding to the back, a third piece 10 forms the back waistband of the pantyhose. It corresponds to the panel G.

Under this third piece 10 is provided a second piece 19 which covers transversely the lower back over the gluteus maximus muscles.

In all the other areas of the body not covered as indicated above by second or third parts, the pantyhose consists of first pieces namely: first two pieces 11, 12 on either side of the second piece 3, a first piece 13 according to the front of the thighs and back to the abdomen, a first piece 14 covering the gluteus maximus muscles, a first piece 22 on the back side of the thigh. These different first pieces respectively correspond to panels I, I ', J, J', K, L, N and N '.

As shown in FIG. 1, two false seams 15, 15 'intersect the anterior part of the two thighs. Each seam 15 connects the seam 16 between the panels A and K, from an upper point 17 which is located at the base of the tensor of the fascia lata to a lower point 18 at the level of the vast internal. This false seam 15 has the effect of creating a reduced line of elasticity, between these two points 17, 18 so as to avoid the possible spacing between the two wings V of the panel A, relative to their normal position, spacing that could occur due to the change in distribution of volumes in the tights 1 during the work of the muscles.

In the description of the second and third examples below, no mention will be made of the actual panels, which are the responsibility of the mounting of the tights during its manufacture, but only the first, second and third parts, characteristics of the present invention.

In the second example, which is illustrated in Figures 4 and 5, the tights 30 is intended for athletes who practice the raid, that is to say running in the mountains. It is therefore also a sticky for the race but that nevertheless have a number of differences compared to the sticky of the first example.

The description that follows focuses on highlighting only these differences.

As regards the lower part of the leg, from the knee zone to the base of the tights, only differs the suppression of the second piece 3 which covered, in the tights 1 of the first example, the anterior tibialis muscle. This second piece 3 can also be removed in the pantyhose 1 for the race of medium or long distance.

At the level of the part of the body corresponding to the thigh, a second piece 31 covers the anterior surface of the knee and extends on the anterior aspect of the thigh by covering the vastus externa (Vastus lateralis) and the tensor of the fascia lata (Tensor fasciae). latae) to end on the anterior superior iliac spina (Spina iliaca anterior superior) at the waist corresponding to the upper part 30a of the pantyhose.

This second piece 31 covers the iliotibialis band and terminates for its posterior lateral part by a straight line extending the lateral lateral ligament of the knee, passing through the greater trochanter (Trochanger major) and extending to the upper part. sticky.

Another second piece 32 constitutes an extension of the second piece 31 above, on the posterior side of the thigh crossing the muscular group of glutes, and in particular the gluteus maximus muscle. This second piece 32 originates at the level of the tensor of the fascia lata and ends in the sacred region and at the level of the lumbosacral hinge.

False seams, not shown in Figures 4 and 5, can cross the medial and lateral parts of the knee in the corresponding second part, to locally reduce the extensibility of the material and thus increase joint stability.

At the level of the area of the body corresponding to the belly, a second piece 33 covers the abdomen transversely and extends between the second parts 31 of the two legs which extend to the level of the belt 30a. This second piece 33 thus also forms the belt in its upper part. It has for example a height of about 8 cm on the sides and 10 cm in the center.

In the part of the body corresponding to the back, a second piece 34 covers transversely the lower back above the gluteus maximus muscles (Gluteus maximus). It extends transversely between the two second pieces 31 and forms the belt in its upper part.

The assembly of the various panels of the panty 30 for the practice of the raid is made according to a bent construction at the joint of each knee at a bending angle of the knee of the order of 20 °.

In the third example which is illustrated in Figures 6 to 8, the tights 40 is intended for cyclists and has an upper part with straps. As for the second example, only the differences with respect to the glue 1 of the first example will be described in detail.

At the level of the lower part of the leg, corresponding to the calf, a second piece 41 has the same characteristics as the second piece 2 of the pantyhose 1 of the first example.

At the portion of the body corresponding to the outside of the thighs and buttocks, a second piece 42 covers the lower back down the legs. It covers the sacro-lumbar muscles (Iliocostialis lumbrum), the outer surface of the gluteal muscles (Gluteus maximus), the greater trochanter (Trochanter major), the iliotibialis band (Tractus iliotibialis) and the lower part of the outer vastus (Vastus lateralis). . This second piece 42 extends downwards on the lateral lateral ligament (Lig collaterale fubulare) and the patellar ligament (Lig patellae). It joins the second piece 41 at the level of the external lateral ligament (fibulare collateral ligament) and at the level of the internal lateral ligament (tibial collateral ligament) and covers the internal lateral ligament (tibial collateral ligament) to join the second piece 43, described below, at the base of the vastus internus (Vastus medialis). This second band 42 rises in its upper part in a central bundle in the back, along the spine and lumbar muscles to form the medial portion 44 of the straps.

At the part of the body from the outside of the abdomen to the inside of the thighs, a second band 43 composes, in its upper part, the front part of the straps 45, 45 '. It descends, extending in the form of a parenthesis around the abdomen, covering the external parts of the oblique muscles of the abdomen (Obliquus externus abdominis and Obliquus internus abdominis), the anterior superior iliac spine (Spina iliaca anterior superior), the long seamstress muscle and the extensive internal muscle (Vastus medialis). This second piece 43 ends between the internal femoral tuberosity (Epicondylus medialis) and the base of the vastus medialis (Vastus medialis) where it joins the second piece 42 described above.

False seams 46, 47 intersect the anterior part of the thigh, between the anterior edges of the two second pieces 42,43. The first seam 46 starts from the second piece 43, about ten centimeters under the upper junction 48 with the second piece 42 to join the latter at mid-thigh. The second false seam 47 starts from the second piece 43 at mid-thigh, to join the second piece 42 a few centimeters above the lower part of the vastus medialis muscle (Vastus lateralis). These false seams 46, 47 avoid spacing the two common edges of said second pieces 42,43 during the flexion of the knee.

At the level of the body portion corresponding to the belly, a second piece 49 covers the bottom of the abdomen transversely between the second pieces 43 of the two legs. This second piece 49 passes at the level of the umbilicus in its upper part about ten centimeters above the pubic symphysis (Symphysis pubica). This second piece 49 has a height of about 15 cm on the sides and 12 cm at its center.

In the body part corresponding to the rib cage, a third piece 50 covers the ribs, between the second pieces 42 on the back and 43 on the front. This third piece 50 ends under the arms in its upper part and joins the second piece 42 in its lower part, a few centimeters above the iliac crest (Crista iliaca).

As is apparent from the above description, the straps, with their rear portion 44 and their front portion 45, are formed by the junction of the second pieces 42 and 43 in the upper part.

In addition, in the tights 40 for cyclists the assembly of the panels is made according to a bent construction at the joint of each knee at a bending angle of the knee of the order of 30 °.

The crotch area has no third piece with superior elasticity, but like all cycling shorts an inner padding, for example chamois.

Claims (21)

Localized compression tights for practicing a sport in which the legs are animated with repetitive movements, including running and cycling, characterized in that , at least in the portion corresponding to the lower part of the body: - It consists of extensible textile pieces, assembled to each other, namely first pieces of normal elasticity, second compression parts and possibly third pieces with higher elasticity, and all the first and second pieces have, in the assembly, substantially the same average elasticity in the longitudinal direction of the adhesive and the second pieces have, in the transverse direction, an average elasticity which is less than half of the elasticity average of the first pieces. A panty according to claim 1, characterized in that the average transverse elasticity difference between the first and second compression parts is in the ratio of 2 to 3. Tights according to claim 1 or 2, characterized in that the first and second pieces being of the woven type with warp yarns and / or of the type knitted with mesh columns, the warp yarns and / or the mesh columns, have in the assembly all the same longitudinal direction. Pantyhose according to any one of claims 1 to 3, characterized in that the assembly of the first and second parts at the knee is made with a curved construction at a bending angle of about 20 ° to about 30 °, including about 20 ° for a tights for running in the mountains, 20 to 25 ° for a tights for running long or medium distance and 30 ° for a cycling tights, and in that it possibly includes a third piece with elasticity upper back of the knee, for example an open mesh net. Pantyhose according to any one of claims 1 to 4, characterized in that at least one first piece (13) or a second piece comprises at least one false seam (15), creating a reduced line of elasticity arranged in oblique to the longitudinal direction. Pantyhose according to one of Claims 1 to 5, characterized in that a second compression part (2, 41) is arranged in the part of the pantyhose (1) which is intended to cover, at the level of the calf, the internal and external twin muscles and the medial lower part of the calf. Pantyhose according to one of Claims 1 to 6, for long and medium distance running, characterized in that a second compression part (3) is arranged in the part of the pantyhose intended to cover, at the level of calf, anterior tibialis muscle. Pantyhose according to any one of claims 1 to 6, for running, characterized in that a second piece (4) with a compression effect is arranged in the part of the pantyhose intended to cover, around the hinge of the knee, the internal and external lateral ligaments, the anterior tibial tuberosity, the patellar ligament and the entire anterior portion of the knee joint, the patella being covered by a first piece (21) or possibly a third piece. Panty according to one of Claims 1 to 6, for the long and medium distance stroke, characterized in that a second V-shaped piece (7) is arranged in the part of the pantyhose intended to cover, on the one hand , the anterior part of the knee joint, at the base of the V, and on the other hand, the anterior surface of the thigh, along the two wings (7a, 7c) of the V, the first wing (7a) V overlying the outer vastus (Vastus lateralis) and the tensor fascia lata (Tensor fasciae latae) to terminate on the anterior superior iliac spine at the waistband of the tights and the second wing (7c) of the V covering the vast internal (Vastus medialis). Pantyhose according to one of claims 1 to 6, for the long and medium distance stroke, characterized in that a second compression part (7b) is arranged in the part of the pantyhose intended to cover, on the rear part , the muscular group of the hamstrings from the upper lateral part to the lower medial part. Pantyhose according to one of Claims 1 to 6, characterized in that a second compression piece (9, 33, 49) is arranged in the front part of the pantyhose, intended to cover the abdomen, in the form a band transverse of which, being a tights for running long or medium distance, the central portion is higher than its two lateral parts. Pantyhose according to any one of claims 1 to 6, characterized in that a second piece (19, 34, 42) with a compression effect is arranged in the rear part of the tights intended to cover the lower back, above the Gluteus maximus muscles in the form of a transverse band. Panty according to claim 12, for long or medium distance running, characterized in that a third piece (10) formed of an open mesh is arranged above said second piece (19), at the level of size. Panty according to any one of claims 1 to 6, for running, characterized in that a third piece (8, 35) of higher elasticity is arranged in the part of the panty for covering the crotch area, starting along the gluteal sulcus to join the internal femoral tuberosity. Pantyhose according to one of claims 1 to 6 for running in the mountains, characterized in that a second piece (31) with a compression effect is arranged in the part of the pantyhose (30) which covers the inner face of the knee and extends on the anterior aspect of the thigh by covering the external vastus and the tensor of the fascia lata and ending on the anterior superior iliac spine at the level of the belt corresponding to the upper part (30) of the pantyhose. Pantyhose according to one of claims 1 to 6 or 15 for the mountain race characterized in that a second piece (31) with a compression effect is arranged in the part of the pantyhose (30) which covers the iliotibial band and terminates for its posterior lateral part by a line extending the lateral lateral ligament of the knee, passing through the greater trochanter and extending to the upper part of the tights. Tights according to one of claims 1 to 6 for the mountain race characterized in that a second piece (32) with a compression effect is arranged in the part of the pantyhose (30) which corresponds to the posterior surface of the thigh, begins at the level of the tensor fascia lata and ends in the sacral region and at the lumbosacral hinge, crossing the muscular group of glutes, including the gluteus maximus muscle. Pantyhose according to one of claims 1 to 6 for the practice of cycling, characterized in that a second piece (42) with a compression effect is arranged on the part of the pantyhose (40) which corresponds to the outside of the thighs and buttocks, covering the lower back down the legs so as to cover the sacro-lumbar muscles, the outer surface of the gluteal muscles, the greater trochanter, the iliotibial band and the lower part of the external vastus and extend towards the the bottom on the lateral ligament and the patellar ligament. A panty according to claim 18 characterized in that the second piece (42) rises in its upper portion in a central bundle in the back, along the spine and lumbar muscles to form the medial portion (44) of the straps. Pantyhose according to one of claims 1 to 6 for the practice of cycling, characterized in that the second piece (43) is arranged on the part of the pantyhose (40) which corresponds to the part of the body going from the outside of the abdomen inside the thighs, component part in its upper part the front part of the straps (45, 45 '), which second piece (43) descends by extending downwards in the form of parenthesis around the abdomen, covering the outer parts of the oblique muscles of the abdomen, the anterior superior iliac spine, the long seamstress muscle, and the vastus medialis end between the internal femoral tuberosity and the base of the vastus medialis. Tights according to one of claims 1 to 6 for the practice of cycling, characterized in that a third piece (50) with higher elasticity is disposed on the part of the tights which corresponds to the rib cage covering the ribs, ends under the arm in its upper part and joining a second piece (42) in its lower part, a few centimeters above the iliac crest.

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