What happens with the contraction time and the half time to relaxation of the forearm muscles during an intermittent fatigue protocol - Marina, M.; Torrado, P.; Angulo-Barroso, R.; Busquets, A.; Rios, J.G.; Gasol, X.; Turmo, T. (17th Annual Congress of the European College of Sport Science (ECSS), Bruges, 4. -7. July 2012, 2012)