Muscular function during ergometer cycling.
Quantified EMG and calculated mechanical muscular power output data were combined to provide further analysis of muscular function during ergometer cycling. The single-joint muscles; gluteus maximus, gluteus medius, vastus medialis, vastus lateralis and soleus all showed a more predictable function with approximately linear relationship between calculated power output and recorded EMG. The function for the two-joint muscles was found to be more complex. Biceps femoris seemed to act mainly as a hip extensor and medial hamstring mainly as a knee flexor. Gastrocnemius medialis was proposed to act more as a plantar flexor and gastrocnemius lateralis as a knee flexor.
Ericson
M O
MO
Department of Anatomy, Karolinska Institute, Stockholm, Sweden.
D000328:Adult; D001696:Biomechanical Phenomena; D004576:Electromyography; D005080:Exercise Test; D006801:Humans; D007596:Joints / Q000502:physiology; D007866:Leg / Q000502:physiology; D008297:Male; D009119:Muscle Contraction; D009132:Muscles / Q000502:physiology*