[Quadriceps femoris muscle during immobilisation and remobilisation (author's transl)].

40 patients of which one leg had been immobilized in a pop cast for 3 and 12 weeks have been investigated with view to the quadriceps muscle. Mechanical and electromyographic investigations revealed the muscular changes under immobilisation and their recovery after removal of the cast. After 12 weeks of immobilisation and 24 weeks of remobilisation the muscle mass is still diminished.