A repetitive strain injury (RSI) symptom is overstress of acutely stiff forearm extensor muscles (FEM). These muscles are in the higher forearm area and they’re employed to elevate the wrist and fingers, also they angle backwards and lift the fingers (like when typing).
Taut and contorted extensor muscle eventually are overtaxed thus don’t rehabilitate. Consequently, a chronic frail condition develops that penetratingly strains the forearm tendons bound to the extensor muscles. Which impinges referred strain downward the stiffened tendon to the hands, fingers, and wrists.
There are 5 direct muscles in the FEM:
- extensor carpi radialis brevis
- extensor carpi ulnarus
- extensor carpus radialis longus
- extensor digitorum
- extensor indicis
The extensor muscles are intricately and abstrusely situated in the arm.
Overexerted extensor muscles are recurrently contorted and fatigued (dense tissue is discomposed). Scarring, eventuates in reverberating pain downward the forearms to the posterior hands and fingers (typical RSI indications).
The extensor muscles (besides the extensor indicis) affix to several bones near the elbow joint, and pain may emerge near this junction.
Examine an enfeebled FEM with the left hand and compress downward with the thumb onto the extensive site of the many FEM. Transfer the thumb over the FEM area to diagnose pain. Repeat this method with the left-arm extensor muscles, with the right thumb. If the FEM are painful then this condition is typical RSI pain. But it can be conveniently adjusted to provide alleviation.
For extra corroboration, squeeze the thumb on your arm and elevate the wrist, furthermore lift and repeatedly splay the fingers. Next, with the thumb caress the assorted extensor muscles constricting, while the wrist and fingers erect.
Mitigate RSI with ice, massage, and rest. A physiotherapist can recommend befitting treatments like ultrasounds, furthermore research Trigger Point Therapy (TPT) on EFM for do-it-yourself RSI diagnosis and massage procedures. There are massage therapists that specialize in TPT.
