Resumen de Movement Demands and Metabolic Power Comparisons Between Elite and Subelite Australian Footballers
Richard J. Johnston, Mark L. Watsford, Damien J. Austin, Matthew J. Pine, Robert W. Spurrs
This study examined the differences in movement demands and metabolic power output of elite and subelite Australian football (AF) players and quantified the movement profiles of a subelite AF competition. Movement variables were collected from AF players using Global Positioning System devices over 2 AF League (elite) and North East Australian Football League (NEAFL, subelite) seasons. A total of 500 files were collected from 37 elite and subelite nomadic AF players. NEAFL players covered 13,547 m at an average speed of 124.5 m·min-1. Elite players performed more high-speed running (5.7�6.3%) and high acceleration and deceleration efforts (1.9�14.7%, p <= 0.05). The elite players had a higher mean metabolic power output (3.2%) and time spent at the very high power zone (15.9%, p <= 0.05). In contrast, elite players recorded a lower total match duration than the subelite players (4%, p <= 0.05). The contrasting amount of high-intensity activities performed by the 2 groups demonstrates the need to alter the training programs of subelite players to ensure they are capable of meeting the demands of elite football. The differences in match duration suggest that reducing subelite players' match time through increasing their rotations would assist the replication of movement profiles of elite players.
