TY - JOUR TI - Electromyographic behaviour of the gastrocnemius muscle during knee extension and flexion performed on the leg press PY - 1999 AU - Tassi, N. AU - Guazzelli Filho, Joffre AU - Gonçalves, M. AU - Vitti, Mathias AU - Krool, L. B. T2 - Electromyography and Clinical Neurophysiology SN - 0301-150X PP - Beauvechain VL - 39 SP - 367-377 ER -