Italy, 2007. Effects of 8-week strength training with two models of chest press machines on muscular activity pattern and strength

The purposes of this study were to assess:
(i) the effects of 8-week training programs with constrained-path and unconstrained-path chest press machines on 1-RM;
(ii) the different activity patterns of selected arm and shoulder girdle muscles during push movement performed on the different machines;
(iii) the transfer of the training effects from one machine to the other.
Twenty healthy women randomized to either the FM or CM strength training protocols were evaluated before and after the strength training program. Muscular activity signals were recorded by surface electromyography (sEMG) from eight muscles while each subject performed the exercise on each machine...read more...