External workload monitoring has become commonplace in many sports, with staff looking to leverage the information gained to manipulate practice volume and intensity, hoping to maximize player readiness, minimize fatigue, and reduce the risk of injuries. However, with the increase in availability of technology to facilitate this, practitioners are faced with an overwhelming selection of metrics to choose from. Collinearity, contradiction and the accurate quantification of relative metrics risk creating confusion, and therefore it may benefit practitioners to have some guidance to help in the process of metric selection. This framework aims to provide clarity in the underpinning theory, history and development of external workload monitoring practice, a series of questions for reflective practitioners to consider, and evidence-based practical suggestions for its use.
Nightingale et al. (Fri,) studied this question.