A multi-centre, randomized, wait-list controlled trial will be used to compare the effects of tailored PA coaching sessions versus no coaching on PA behaviour, psychosocial factors, and health outcomes. Eligible individuals will be randomly assigned (1:1) to either the experimental (PA coaching sessions) or wait-list control condition. Groups will be stratified by injury level, age, and site. The randomization sequence will be generated by a research assistant independent of the trial.