ABSTRACT
Professional football players follow heavy training and playing schedules. Australian Rules footballers may play up to two games and train five sessions, per week. Prior physical exercise, such as heavy endurance running on successive days, has been shown to be associated with an impairment of maximal aerobic work time and oxygen consumption (Costill et al., 1971). It was decided to investigate the effect of training for, and playing Australian Rules football, on the maximal aerobic, and hence, endurance performance of a single player. A case study design was chosen to overcome difficulties in obtaining professional footballers for serial tests during the season.
