Athlete monitoring can be tracked through a range of devices and pieces of software. However, certain measures or devices may only track internal or external loading through either physiological or biomechanical systems. Internal loads can be difficult to measure directly from both a physiological and biomechanical perspective (e.g. blood lactate and muscletendon forces, respectively). However, subjective measures such as RPE may be a suitable alternative that reflects both types of internal loading.
It has been suggested that accumulated accelerometer based outcomes, such as Player Load, are valuable to estimate the extent to which the player, through their activities, experiences accelerations and hence biomechanical load of the body as a whole. Being able to differentiate between physiological and biomechanical loading may influence a training plan. For example, if players’ physiological loads are high, playing a small-sided game with a smaller pitch size reduces physiological load and likely increases biomechanical load. On the contrary, performing something like HIIT delivers a high physiological load, but a low biomechanical load.