Monografia (especialização)
Neuropatia supraescapular em atletas de voleibol: repercussões biomecânicas e lesões associadas
Fecha
2011-12-02Autor
Simone Cássia de Lima
Institución
Resumen
Suprascapular neuropathy is a peripheral nerve damage that may have root causes
such as trauma or repetitive overhead. The atrophy of the infraspinatus muscle stems of
this condition, and is seen in about 20% of volleyball players. The mechanism of injury is
most commonly observed in this population is the overload, due to the intense repetition of
movements observed in this sport. The supraescapular nerve is stretched during the
deceleration phase of the action sports of volleyball, in which humerus is positioned in
internal rotation and adduction of the glenohumeral joint. The observed biomechanics in
volleyball during the sports gesture drawing and cut the need of proper function of the
rotator cuff to occur optimally. In the presence of supraescapular neuropathy,
supraspinatus and infraspinatus muscles comprising the rotator cuff are weak, the
correctness of the movements is not observed, compromising the integrity of surrounding
structures such as tendons and ligaments. The weakness of these muscles generates
biomechanical compensations for preserving the system’s functionality, such as overload
of adjacent muscles (deltoid, upper trapezius). However, the rewards are not always
effective, and sometimes lead to injury. Associated injuries are the most commonly
observed tendinopathies of the rotator cuff, impingement syndrome and subacromial
bursitis. The appearance of these lesions may serve as a warning to diagnose
supraescapular neuropathy, since it is a rare disease symptoms.