whenever any muscle contracts there must be a reciprocal relaxation of its opponent. The complexity of integrated thumb motion can be easily appreciated. The thumb motions are flexion, extension ...

Initially, all major upper-extremity muscle groups need to be tested, including muscles that are responsible for shoulder elevation, abduction, flexion, extension ... of the thumb into flexion ...

Interventions Her training consisted of wrist prono-supination and flexion-extension muscle group reinforcement and proprioceptive training. To protect the wrist against excessive load, the eccentric ...

For example, your oblique muscles aid side flexion and extension (imagine running your left hand down the outside of your left leg), so you’ll need to include lateral flexion, extension and ...