A grip strengthening support device having at least one finger portion (1) to improve the grip of at least one corresponding finger of a wearer by means of at least one artificial tendon (2) arranged along at least a finger portion (1) of the grip strengthening support device, wherein the finger portion (1) comprises a material (3) at least along both sides (4) and a tip (5), and possibly along a dorsal side (6), corresponding to a finger of a wearer, the at least one artificial tendon (2) is attached along both sides (4) of the finger portion (1) to that the artificial tendon (2) can move in its direction of length with respect to the sides (4) of the finger portion (1), characterized in that the artificial tendon (2) extends along the side (4) more closer to a ventral side (7) than to the dorsal side (6) of the finger portion (1), at least in positions (8a-8c) corresponding to the artic finger joints of the wearer, such that the finger portion (1) transfers a force causing a movement of the wearer's finger to a gripping position when the at least one artificial tendon (2) is retracted, in which the tendon artificial (2) extends in a deviation (9) towards or to a position (10) in the middle between the dorsal (6) and ventral (7) side or closer to the dorsal (6) side in a proximal portion (11) of the finger portion (1) and the at least one artificial tendon (2) extends further along a path (17b, c) in the palm of the wearer.Un dispositivo de soporte de fortalecimiento de agarre que tiene al menos una porción de dedo (1) para mejorar el agarre de al menos un dedo correspondiente de un portador por medio de al menos un tendón artificial (2) dispuesto a lo largo de al menos una porción de dedo (1) del dispositivo de soporte de fortalecimiento de agarre, en el que la porción de dedo (1) comprende un material (3) al menos a lo largo de ambos lados (4) y una punta (5), y posiblemente a lo largo de un lado dorsal (6), correspondiente a un dedo de un portador, el al menos u
