Date of Award


Degree Name

Doctor of Philosophy (College of Health Sciences)

First Supervisor

Dr Christopher Joyce

Second Supervisor

Harry Banyard


The primary aim of this study was to investigate the return to baseline of movement velocity and maximal strength following a typical strength-orientated and power-orientated session in the full depth, free-weight back squat performed with maximal concentric velocity. Fourteen strength-trained males completed a power-orientated session (3-sets of 6-repetitions @50% of a one-repetition maximum [1RM]) and a strength-orientated session (5-sets of 5-repetitions @80%1RM) in randomised order over two weeks. At 24, 48, 72 and 96-hours following the training session stimulus, sessions were completed with loads of 20%, 40%, 60%, 80%, 90% and 100%1RM lifted. Prior to the completion of the training sessions, individualised baseline load-velocity profiles were conducted based on the relative loads 20%, 40%, 60%, 80% and 90%1RM. Paired sample T-tests and effect sizes (ES) using Cohen’s D reported differences in mean velocity (MV), peak velocity (PV) and peak force for each relative load at baseline and each time point for all participants. 1RM was also compared between baseline and each time point. Large (≥0.80) and medium (0.50 to 0.79) ES were reported for MV and PV at loads of 60% and above until 72h after the strength-orientated training protocol. Small (0.20 to 0.49) to trivial (