[The principle of the spiral-like structure of skeletal muscles--the basis for motor optimal performance of the active lower extremity].

Searching for the new skeletal muscles characteristics makes a complicated problem of the objective analysis of structural and functional evaluations. Spiral-like structure of lower extremity skeletal muscles demonstrated is a part of spirals of the organism level, reflecting the systematic biomechanical integrity of muscles. New patterns of skeletal muscles orientation directly deal with mechanism of the internal twisting of lower extremity long segments and are pathogenic in mechanism of correction of the acquired and congenital pathologies.