@article{articlef8b097cc,
title   = {Electromyographic behaviour of the gastrocnemius muscle during knee extension and flexion performed on the leg press},
author = {Tassi, N. and Guazzelli Filho, Joffre and Gonçalves, M. and Vitti, Mathias and Krool, L. B.},
year = {1999},
journal   = {Electromyography and Clinical Neurophysiology}
}