Forty-three university students volunteered in this study (Table I). Participants were healthy Physical
Education students at the University of Malaga, Spain. In this study we established the following exclusion
criteria (Ayala and Sainz de Baranda 2008; López-Miñarro et al., 2008) for subjects who: a) suffered from any
kind of disease that could be aggravated by this study; b) had skeletal muscle limitations c) experienced spinal or
hip pain that would limit their participation in the test; d) had muscular pain at the time of the assessments. The
study was approved by the University of Malaga Ethics Committee. Participants were informed of the protocols
and procedures before their participation, and informed consent was obtained from them all.