Inertial muscular profiles allow a more accurate training loads definition

摘要

Aims of the study. -The aim of the present study was to explore the interest of inertial load-velocity and load-power relationships for establishing resistance training zones.Materials and methods. - Thirty-five subjects went twice at the laboratory. The first session was used to determine bench press one repetition maximal (1RM) while the second session was used to determine load-velocity and load-power relationships by the means of an inertial dynamometer. For each subject, four major training zones (maximal velocity, power-velocity, strength-power, maximal strength), defined from the 1RM, were compared to the corresponding training zones defined from inertial load-velocity and load-power relationships.Results. - Training zones defined from the 1RM are significantly different (,P< 0,001) from the ones based on load-velocity and load-power relationships. According to load-power and load-velocity relationships results, maximal bench press velocity should be trained from 0 to 23% of the 1RM; power-velocity should be trained from 25 to 54% of the 1RM; strength-power should be trained from 54 to 82% of the 1RM and maximal strength should be trained with superior loads. Such muscular profiles defined with inertial dynamometers allow a more acute and individualised prescription for power-velocity resistance training.