Human skeletal muscle size and architecture: Variability and interdependence

摘要: Seven hundred and eleven women men (aged 3-94 years, including normal individuals highly trained bodybuilders) were tested for the thickness pennation angles of their triceps brachii (TB), vastus lateralis (VL), gastrocnemius medialis (GM) muscles. The variations muscle largest in TB (6-66 mm 5-55 degrees), followed by VL (8-45 7-33 degrees) GM (11-36 12-33 showed smaller than men. These results suggest existence muscle- gender-specificity variability dimensions. Significant positive correlations observed between (r = 0.81, 0.61, 0.56, TB, VL, GM, respectively), indicating that size-dependence angle is a general feature pennate