Investigating the internal and external load output across different drill classifications in semi-elite male Australian football players

Player and training load is constantly monitored during most team sports training, especially in intense sports such as Australian Football (AF) to ensure players are not over or under training. However, limited research has explored how drill types can influence the internal and external load placed on athletes. This observational study explored how semi-elite male AF players’ (n = 17) internal and external load output is influenced by different drill types. Participants completed preseason training sessions wearing Global Positioning Systems (GPS) and Heart Rate (HR) monitors and gave differential Ratings of Perceived Exertion (RPE) in relation to breathlessness (RPE-B) and leg-muscle exertion (RPE-M) at the conclusion of every drill. Data were analysed using linear mixed effects regression models, and pairwise comparisons between each drill type were conducted using Sidak's post hoc correction. Fundamental and ball movement drills elicited the lowest absolute and relative internal and external load values when compared to conditioning, small-sided games (SSG) and match simulation drills. Match simulation elicited the highest absolute external loads, excluding high speed running. Conditioning elicited the highest relative external and internal load outputs, excluding decelerations. Coaches should consider the type of drills they implement across the training week to ensure athletes are achieving the desired physiological adaptations, while also optimising preparation for competition.