ES1284919U - FINGER EXERCISER DEVICE FOR TRAINING, WARMING UP AND/OR REHABILITATION OF MUSCLES, TENDONS AND PULLEYS OF PHALANGEALS (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

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Description

DESCRIPTION

FINGER EXERCISER DEVICE FOR TRAINING, WARM-UP

AND/OR REHABILITATION OF MUSCLES, TENDONS AND PULLEYS OF PHALANGEALS

technique field

The present invention concerns a finger exerciser device for training, heating and/or rehabilitation of muscles, tendons and pulleys of the phalanges of the fingers of the hands.

The present exerciser device has application especially in physiotherapy for the recovery and rehabilitation of hand injuries, especially for athletes such as climbers, and also for training and strengthening muscles, tendons and pulleys of the phalanges of the fingers of the hands.

State of the art

In certain sports, such as climbing, specific training of the fingers is required for the training, warm-up and/or rehabilitation of muscles, tendons and phalangeal pulleys.

In particular, in the case of climbing, since the entire weight of the body hangs on the fingers of the hands, the fingers and especially the tendons and pulleys are subjected to many stresses. These tensions will differ depending on whether the grip position of the hand is arched, semi-arched or extended, requiring specific exercises for each of these grip positions.

The arching grip consists of flexion of the metacarpophalangeal joints (between the metacarpals and the proximal phalanges), proximal interphalangeal joints (between the proximal phalanges and the intermediate phalanges), and distal interphalangeal joints (between the intermediate phalanges and the distal phalanges) in hypertension, this being the grip that subjects the flexor system the most, mainly to the pulleys that join the sheaths of the flexor tendons to the phalanges, where injuries are frequent in climbers.

The semi-arching grip consists of extension of the metacarpophalangeal joints, hyperextension of the proximal interphalangeal joints, forming an approximate 90° angle, and hyperextension of the distal interphalangeal joints.

The grip in extension consists of hyperextension of the metacarpophalangeal joints and flexion of the proximal and distal interphalangeal joints in hypertension.

For the training, warm-up and/or rehabilitation of muscles, tendons and pulleys of the phalanges of the fingers of the hands, fixed exerciser devices are known, such as multi-grip tables, which are fixed to a wall or hung from a ceiling or ceiling. a tree, and allow the user to hang from them. However, these devices are very bulky and heavy and do not allow to regulate the tension supported by the muscles, tendons and pulleys of the phalanges of the user's fingers, since it will depend on the user's weight.

Hand pliers are also known, in the form of pliers, provided with a spring that offers an adjustable resistance to the closing of the pliers. This type of hand gripper is designed to be held between the thumb, and part of the palm, and the middle phalanges of the hand, allowing the muscles and tendons associated with closing the hand to be heated and exercised, mainly located in the forearm. The geometry of this type of exerciser device does not allow an easy and safe grip between the area of the hand where the carpals are located and the ends of the fingers where the distal phalanges are located, thus preventing the fingers from being exercised by means of a semi- bowing or arching of the fingers. Other devices for exercising the muscles and tendons, mainly located in the forearm, associated with the closure of the hand, are also known, for example through documents CN103638647, US689652 and WO2018000412.

These exerciser devices, and many other similar ones on the market, consist of two parallel handles guided by an elastic element that keeps them apart. As in the hand grippers described above, these devices are designed so that the handles are grasped between the thumb, part of the palm, and the median phalanges of the hand. These devices can therefore be considered equivalent to the previously described hand tweezers and have the same limitations, since they do not allow an easy and safe grip between the area of the hand where the carpals are located and the ends of the fingers where they are located. emplace the distal phalanges.

The finger exerciser device described in document WO2017171534 is also known. This device has a base provided with a support for the thumb and a support for the distal phalanx, provided with a concave housing, associated with the base in a sliding manner and connected to a spring. This device allows gripping between the thumb and the distal phalanx of a finger inserted in the concave housing of the distal phalanx support, exercising the muscles and tendons of said finger. The geometry of this exerciser device determines a position of the hand that does not allow the fingers to be exercised by semi-arching or arching the fingers.

The present invention solves the above and other problems, providing an exerciser device that, thanks to its geometry and layout, allows the three main finger grips to be worked in an isometric and eccentric way: extension, semi-arching and arching, allowing a correct tendon glide in all these grips.

The rest of the exerciser devices that are known do not allow these exercises together.

Brief description of the invention

The present invention concerns a finger exerciser device for training, warming up and/or rehabilitation of phalanx muscles, tendons and pulleys, in particular the third phalanges and pulleys through arching of the fingers.

The object presented thus has the following three different applications or main objectives:

1) Warm up and avoid injuries:

In the sport of climbing it is common to have to warm up before starting, with special emphasis on the area of the fingers and, very particularly, the third phalanges, which require more attention as it is an area with a lot of tendon where the blood supply is less (and even more so at low temperatures) than in muscle areas. This need to warm up the hands well is absolutely essential in rock climbing (outdoor climbing, in the mountains), where it is usually at a low temperature (it should be noted here that climbing -from a medium-high level- it requires low temperatures that facilitate the adherence of the skin to the rock) and the climber hardly has the tools to heat them and exercise them before exposing them to great efforts.

2) Strength/endurance training:

Due to the fact that the ruler and its dimensions are chosen by the climber, and that the force exerted by the accessory is adjustable, the invention lends itself to carrying out strength training with it, similar to what is done in climbing walls, but without the need to go to them. It has dimensions that make it suitable to be used anywhere and at any time, which can be interesting even for use in the workplace by those climbers who work in offices, sitting down, or in similar conditions; as well as at home, while reading, watching TV or performing various tasks.

3) Rehabilitation:

Finger injuries are common in climbing, particularly tendon and pulley injuries. These are injuries that are often due to poor warm-up, and it is that the cold finger (lack of adequate warm-up) suffers much more than once warmed up. These injuries take a long time to heal as they are an area that is not particularly irrigated and require long periods of time (from 2 to 6 months, for example) accompanied by exercises (usually carried to the pain threshold) that help bring blood to the affected area for better healing (thus avoiding possible fibromyalgia, for example). The accessory that is presented has the appropriate qualities to carry out these exercises, even measuring the improvement by being able to regulate the intensity, thus observing the increase in strength in the affected area over time. In addition, it is more than remarkable that few physiotherapists are aware of the exercises to be performed to cure these injuries, as they are very unusual injuries (outside the group of climbers) in areas that do not require special strength (once again , outside the group of climbers). Thus, only physiotherapists specialized in this area or sport effectively treat these injuries. This makes the product one more accessory that medical professionals can use when recommending rehabilitation for fingers.

To achieve the aforementioned objectives, the proposed exerciser device comprises:

a base, defining mutually orthogonal longitudinal, transverse and sagittal directions and an anterior face facing the sagittal direction, and wherein the base includes a first longitudinal guide extending in the longitudinal direction;

a carpal support, associated with the base;

at least one support of distal phalanges, associated with the base;

the distal phalangeal support being guided by the first longitudinal guide allowing relative sliding between the carpal support and the distal phalangeal support in the longitudinal direction;

at least one elastic element configured to offer elastic resistance to relative sliding, in the longitudinal direction, between the carpal support and said at least one distal phalangeal support.

Carpal support is understood to be a support element intended to support the part of the palm of the hand where the carpals are located, that is, the base of the palm of the hand in its area closest to the wrist.

In the same way, it is understood that the support of the distal phalanges is also a support element, typically a strip, intended to support the part of the ends of the fingers where the distal phalanges are located.

The base will be a casing whose front face will be that front face of the base visible from the sagittal direction, a face typically being mostly perpendicular to said sagittal direction. Therefore, the front face will extend mainly in the longitudinal and transverse directions.

Preferably, the carpal and distal phalangeal abutments extend in the transverse direction and are substantially parallel to each other and face each other in the longitudinal direction.

The present invention proposes, in a way not known in the state of the art, that:

the carpal rest defines a concave carpal seat between a sagittal carpal surface, mostly facing the sagittal direction, and a longitudinal carpal surface, mostly facing the longitudinal direction and adjacent to the sagittal carpal surface; and that

said at least one support of distal phalanges defines at least one concave seat of distal phalanges between a sagittal surface of distal phalanges, mostly facing the sagittal direction, and a longitudinal surface of distal phalanges mostly facing the longitudinal direction and adjacent to the sagittal surface of distal phalanges, determining an arched, semi-arched or extension grip of the hand between the concave carpal seat and the concave distal phalangeal seat.

It is understood that a concave seat will be one whose cross section, in a plane perpendicular to the transverse direction, is concave, providing a firm and safe support point to position the base of the palm of the hand or the ends of the fingers.

It is also understood that the sagittal surface of the carpus and distal phalanges, mostly facing the sagittal direction, will be a surface accessible to the user in the sagittal direction, the projection of said surface in the sagittal direction being greater than the projection of said surface. in the other longitudinal and transverse directions.

Likewise, the longitudinal surface of the carpus and distal phalanges, mostly facing the longitudinal direction, will be a surface accessible to the user in the longitudinal direction, the projection of said surfaces in the longitudinal direction being greater than the projection of said surfaces in the remaining sagittal and transverse directions. The longitudinal surfaces of the carpus and distal phalanges will be in opposition, oriented in opposite directions and not facing each other.

Said concave seats allow the insertion, in their concave interior, of the base of the palm of the hand or the tips of the fingers, in the sagittal direction, that is to say in a direction perpendicular to the longitudinal direction in which the slider slides. distal phalangeal support

This allows a user to rest the portion of the hand that contains the carpals on the concave carpal seat and to rest the fingertips, where the distal phalanges are located, on the concave distal phalangeal seat. The flexion of the different joints of the hand will cause the distal phalangeal support to slide, bringing it closer to the carpal support, overcoming the elastic resistance of the elastic element. The position and geometry of the carpal and distal phalangeal supports described above determines whether the hand is positioned in an arched, semi-arched, or extended grip during the exercise.

According to a preferred embodiment, the longitudinal surface of the distal phalanges and the sagittal surface of the distal phalanges may be distal phalangeal support surfaces that define a concavity in the distal phalangeal support. In other words, the concave seat of the distal phalanges may be defined by at least one concavity defined in a anterior aspect of the distal phalangeal support accessible in the sagittal direction. For example, the support may include one or more concavities for the insertion of one or more fingers.

Alternatively, it is proposed that the longitudinal surface of the distal phalanges may be a surface of the distal phalangeal abutment, and the sagittal surface of the distal phalanges may be a surface of the anterior face of the base, adjacent to the distal phalangeal abutment. That is, the concave distal phalangeal seat may be a concave region defined between the distal phalangeal support and a sagittal surface of the anterior face of the base, said concave region being accessible in the sagittal direction and adjacent to the distal phalangeal support. . According to this embodiment, the concave distal phalangeal seat is defined between the distal phalangeal support and a part of an anterior surface of the base, on which the distal phalangeal support slides.

Similarly, the longitudinal carpal surface and the sagittal carpal surface could be surfaces of the carpal abutment that together define a concavity in the carpal abutment. That is, the concave carpal seat could be defined by a defined concavity on an anterior face of the carpal rest accessible in the sagittal direction.

Alternatively, the longitudinal carpal surface could be a distal phalangeal bearing surface, and the sagittal carpal surface could be a base anterior surface. In other words, the seat of the distal phalanges could be defined between the carpal support and an anterior surface of the anterior face of the base, accessible in the sagittal direction and adjacent to the carpal support. According to this second alternative, the concave carpal seat would be defined between the carpal rest and a part of an anterior surface of the base, on which the carpal rest is fixed, and which provides a support, on the base, for the base of the palm of the hand.

Preferably, the anterior surfaces of the anterior face of the base, adjacent to the carpal and distal phalangeal abutments and defining the concave carpal and distal phalangeal seats, will be substantially coplanar with one another.

The base may also include, on the front face, multiple anchoring points for the removable fixing of the carpal support in different positions of the base by means of a releasable fixing device, thus allowing the initial distance between the carpal support and the support to be adjusted. of distal phalanges, adapting to different sizes of hands.

In such a case, the releasable fixation device may consist, for example, of protruding pins of the carpus support in the sagittal direction, and insertable in a tight way in complementary openings provided in the anterior face of the base.

According to an alternative embodiment, the base may include, on the front face, a second longitudinal guide that extends in the longitudinal direction, the carpal support being guided by the second longitudinal guide and the carpal support being slidable in the longitudinal direction and fixable, during use, in any position along said second longitudinal guide by means of a fixing device. This embodiment will also allow adjusting the initial distance between the carpal and distal phalangeal supports to adapt the device to different hand sizes.

It is also proposed that said at least one distal phalangeal support be fixed, by means of releasable fixing means, to a support integrated in the base and guided by the first longitudinal guide, allowing the replacement of the distal phalangeal support.

The releasable fixing means may consist, for example, of protruding pins of the support or of the distal phalangeal support in the sagittal direction, insertable in a tight way in complementary openings provided in the support or of the distal phalangeal support.

Said at least one distal phalangeal support may be selected from among distal phalangeal supports provided with alveolar grooves, bulbous protuberances and/or irregular roughness. In this way, by substituting the support of the distal phalanges, the exerciser device can be adapted to the needs or preferences of the user.

The at least one elastic element may consist, in a preferred embodiment, of at least one spring compressed between a first stop, associated with said at least one distal phalangeal support, and a second stop associated with the base.

The second stop may be movable, in the longitudinal direction, by means of an elastic resistance adjustment device. By moving the second stop, the degree of compression of the spring is modified and thus the elastic resistance offered by the displacement of the distal phalangeal support is adjusted, according to the needs and preferences of the user.

The elastic resistance adjustment device could be, for example, a screw that, by turning, determines the position of the second stop in the longitudinal direction.

According to the preferred embodiment of the invention, the first longitudinal guide will consist of at least one rod fixed to the base, said at least one spring, constituting the at least one elastic element, threaded around said rod.

Other alternative embodiments of the first guide and of the elastic element are also envisaged. For example, the first guide could be a groove that extends in the longitudinal direction made in the base itself, and the elastic element could be a flexible structure made of plastic, metal or another material, for example in the form of a leaf spring.

The at least one distal phalangeal support will preferably be elongated in the transverse direction, offering support to the index to little fingers.

Alternatively, said at least one distal phalangeal support may be a plurality of independent distal phalangeal supports, side by side, each one guided in the longitudinal direction and defining an independent concave distal phalangeal seat.

In such a case, each independent distal phalangeal support could have an independent elastic element, the elastic resistance of each independent elastic element being independently adjustable.

A method of using the exerciser device by way of fit and use prompts provided by a mobile application that would consider the user's history of use of the exerciser device is also contemplated.

The user would register in the application, generating a personal profile, where he would enter data related, for example, to his level of experience in climbing, previous or present injuries, etc. Based on the data entered, the user could request that the application generate preferred exercise device settings and exercise routines, to choose between warm-up, reinforcement or rehabilitation exercises.

Preferably the application would also store a history of use of the exercise device and modify the settings or routines over time based on previous use of the exercise device by that particular user.

The mobile application could show animations, drawings or demonstrative videos of the proposed exercises to be carried out.

Other characteristics of the invention will appear in the following detailed description of an example of embodiment.

Brief description of the figures

The above and other advantages and characteristics will be more fully understood from the following detailed description of an example of embodiment with reference to the attached drawings, which are to be taken by way of illustration and not limitation, in which:

Fig. 1 shows a perspective view of an embodiment of the exerciser device, showing in broken lines the position of a user's hand using the device;

Fig. 2 shows the same perspective view as Fig. 1 but showing the carpal and distal phalangeal supports separated from the rest of the device;

Fig. 3 shows a cross section of the exerciser device shown in Fig. 1 along a plane coinciding with one of the first longitudinal guides;

Fig. 4 shows another cross section of the exerciser device shown in Fig. 1 through a center plane of the exerciser device coincident with the screw-shaped elastic resistance adjustment device;

Fig. 5 shows the same cross section shown in Fig. 4, but according to another embodiment.

Detailed description of an exemplary embodiment

The attached figures show non-limiting illustrative embodiments of the present invention.

The present invention consists of an exerciser device that includes a base (10) that defines longitudinal (DL), transversal (DT) and sagittal (DS) directions orthogonal to each other and a front face (A) facing the sagittal direction (DS). ), and where the base (10) includes a first longitudinal guide (11) that extends in the longitudinal direction (DL).

Said base (10) has, in this preferred embodiment, a box shape with general dimensions somewhat larger than those of a mobile (15cm x 10cm x 1.4cm).

The base has associated projections from its anterior face (A), a carpal support (20) and a distal phalangeal support (30) in the form of a climbing strip, consisting of a small slat, for example of plastic, wood or other material, between 6mm and 26mm thick in the sagittal direction (DS), to reproduce the climbing gestures known as "extension", "semi-arch" and "arch" of fingers.

The base (10), inside, contains two parallel rods that extend in the longitudinal direction (DL), as first longitudinal guides (11).

A support (33), contained within the base (10), is threaded on both rods, allowing them to slide in the longitudinal direction (DL) within the base (10). Each verilla has a spring threaded around it, which acts as an elastic element (40), compressed between the support (33), which acts as the first stop of the spring, and a second stop (42). The position of the second stop (42) in the longitudinal direction (DL) is adjustable by means of an elastic resistance adjustment device (43), which in this embodiment is a screw that extends in the longitudinal direction and that, by turning it, produces a displacement of the second stop (42) in the longitudinal direction, increasing or reducing the elastic compression of the spring, and therefore, regulating the force required to move the support (33).

The anterior face (A) of the base (10) has two elongated slots in the longitudinal direction (DL) through which releasable fixing means (32) connect the distal phalangeal support (30), located above the anterior face (A) of the base (10), with the support (33) contained inside, allowing the displacement of the distal phalangeal support (33) in the longitudinal direction, on the anterior face (A) of the base ( 10), together with the displacement of the support (33) contained within the base (10).

Between the anterior face (A) of the base (10), which has the shape of a flat surface that extends in the longitudinal (DL) and transverse (DT) directions, and the support of the distal phalanges (30), protruding from said face (A) in the sagittal direction (DS), a concave distal phalangeal seat (31) is defined, where the user can insert the distal ends of the fingers in a direction parallel to the sagittal direction (DS). Said distal phalangeal seats (31) provide a firm grip point.

Similarly, between said flat surface of the anterior face (A) of the base (10) and the carpus support (20), protruding from said anterior face (A) in the sagittal direction (DS), there is also defined a carpal seat (21), where the user can insert the base of the palm of the hand, where the carpals are located, in a direction parallel to the sagittal direction (DS).

Alternatively, both the carpal seat (21) and the distal phalangeal seat (31) can be defined not between the anterior face (A) of the base (10) and the corresponding support, but by a depression or hollow provided in the carpal support itself (20) and/or in the support of distal phalanges (30), on a face facing the sagittal direction (DS).

Said arrangement of the carpal seats (21) and distal phalanges (31) determines the position of the hand in an arched, semi-arched or extension grip, allowing it to be exercised both eccentrically and concentrically and isometrically.

In addition, the releasable fixing means (32) allow the distal phalangeal support (30) to be replaced by another different distal phalangeal support (30), with a different texture, material, roughness, to provide different sizes, textures or reliefs to the user.

This would allow the device to be customized to the needs of the user, to the treatment of a specific type of injury, to training for a certain climbing texture, or to adapt the device to the dimensions of the user's fingers or adapt it to train single-finger grips. , bidedo and tridedo, for example.

Different distal phalangeal supports can be obtained, for example, by means of additive manufacturing techniques such as 3D printing, or by subtractive manufacturing techniques such as milling with a computer-controlled machine tool, both techniques allowing the precise manufacture of different distal phalangeal supports (30 ).

The flat surface of the front face (A) of the base (10) can include a measuring ruler to be able to observe the amount of movement made, and thus know (by means of a table provided in the instruction manual or by means of a second ruler) the force that is being exerted at any given moment, also depending on how the elastic resistance adjustment device (43) has been adjusted. This force reading could also be done digitally by adding some small electronic device that measures the displacement and, knowing the initial tension of the elastic element (40) when the user does not exert pressure on it, calculate the effort made by the user in each displacement of the support of distal phalanges (30).

Claims (19)

1. Finger exerciser device for training, warming up and/or rehabilitation of phalanx muscles, tendons and pulleys, comprising: a base (10), which defines longitudinal (DL), transverse (DT) and sagittal (DS) directions orthogonal to each other and a front face (A) facing the sagittal direction (DS), and where the base (10 ) includes a first longitudinal guide (11) that extends in the longitudinal direction (DL); a carpal support (20), associated with the base (10), to support the base of the palm of the hand where the carpals are located; at least one support for distal phalanges (30), associated with the base (10), to support the ends of the fingers where the distal phalanges are located; the distal phalangeal support (30) being guided by the first longitudinal guide (11) allowing relative sliding between the carpal support (20) and the distal phalangeal support (30) in the longitudinal direction (DL); at least one elastic element (40) configured to offer elastic resistance to sliding, in the longitudinal direction (DL), of the at least one distal phalangeal support (30); characterized because the carpal support (20) defines a concave carpal seat (21) between a sagittal carpal surface, mostly facing the sagittal direction (DS), and a longitudinal carpal surface, mostly facing the longitudinal direction (DL), adjacent to sagittal surface of carpus; Y said at least one distal phalangeal support (30) defines at least one concave distal phalangeal seat (31) between a sagittal surface of distal phalanges, mostly facing the sagittal direction (DS), and a longitudinal surface of distal phalanges mostly facing the longitudinal direction (DL), adjacent to the sagittal surface of the distal phalanges, determining an arched, semi-arched or extension grip of the hand between the concave carpal seat (21) and the concave distal phalangeal seat (31 ). 2. The exerciser device according to claim 1, wherein the longitudinal surface of the distal phalanges and the sagittal surface of the distal phalanges are surfaces of the distal phalangeal support (30) that define a concavity in the distal phalangeal support (30). 3. The exerciser device according to claim 1, wherein the longitudinal surface of the distal phalanges is a surface of the support of the distal phalanges (30), and the sagittal surface of the distal phalanges is a surface of the anterior face (A) of the base (10). ). 4. The exerciser device according to claim 1, 2 or 3, wherein the longitudinal carpal surface and the sagittal carpal surface are carpal support surfaces (20) that define a concavity in the carpal support (20). 5. The exerciser device according to claim 1, 2 or 3, wherein the longitudinal surface of the carpus is a support surface of the distal phalanges (20), and the sagittal surface of the carpus is a surface of the anterior face (A) of the base (10). 6. The exerciser device according to claims 3 and 5, wherein the sagittal surfaces of the carpus and distal phalanges are substantially coplanar with one another. 7. The exerciser device according to any one of the preceding claims, wherein the base (10) includes, on the front face (A), multiple anchor points (13) for the removable fixing of the carpus support (20) in different positions of the base (10) by means of a releasable fixing device (22). 8. The exerciser device according to claim 7, wherein the releasable fixation device (22) consists of pins, protruding from the carpus support (20) in the sagittal direction (DS), insertable in a tight way in complementary openings provided on the anterior face (A) of the base (10). 9. The exerciser device according to any one of the preceding claims 1 to 6, wherein the base includes, on the front face, a second longitudinal guide that extends in the longitudinal direction, the carpus support (20) being guided by the second longitudinal guide, the carpus support (20) being slidable in the longitudinal direction (DL) and fixable, during use, in any position along said second longitudinal guide by means of a fixing device. 10. The exerciser device according to any one of the preceding claims, wherein the at least one distal phalangeal support (30) is fixed, by means of releasable fixation (32), to a support (33) integrated in the base (10) and guided by the first longitudinal guide (11), allowing the replacement of the distal phalangeal support (30). 11. The exerciser device according to claim 10, wherein the releasable fixing means (32) consist of pins, protruding from the support (33) or from the support of distal phalanges (30) in the sagittal direction (DS), insertable in a tight way in complementary openings provided in the support (33) or in the support of distal phalanges (30). 12. The exerciser device according to any one of the preceding claims, wherein the at least one distal phalangeal support (30) is selected from among distal phalangeal supports provided with alveolar grooves, bulbous protuberances and/or irregular roughness. 13. The exerciser device according to any one of the preceding claims, wherein the at least one elastic element (40) consists of at least one spring compressed between a first stop associated with said at least one distal phalangeal support (30) and a second stop (42) associated with the base (10). 14. The exerciser device according to claim 13, wherein the second stop (42) is movable in the longitudinal direction (DL) by means of an elastic resistance adjustment device (43). 15. The exerciser device according to claim 14, wherein the elastic resistance adjustment device (43) is a screw that, through its rotation, determines the position of the second stop (42) in the longitudinal direction (DL). 16. The exerciser device according to claim 13, 14 or 15, wherein the first longitudinal guide (11) consists of at least one rod fixed to the base (10), said at least one spring constituting the at least one elastic element (40), threaded around said rod. 17. The exerciser device according to any one of the preceding claims, wherein the at least one distal phalangeal support (30) is elongated in the transverse direction (DT), offering support to the index to little fingers. 18. The exerciser device according to any one of the preceding claims 1 to 16, wherein said at least one distal phalangeal support (30) is a plurality of independent distal phalangeal supports, each guided in the longitudinal direction (DL) and defining an independent concave distal phalanx seat (31). 19. The exerciser device according to claim 18, wherein each independent distal phalangeal support (30) has an independent elastic element (40), the elastic resistance of each independent elastic element (40) being independently adjustable.