Position specific changes in body composition, hydration status, and metabolism during preseason training camp and nutritional habits of Division III football players.

Background : To what extent pre-season training camp may impact body composition and metabolism in collegiate football players is unknown. Objective : The purpose of this study was to assess changes in body composition, dietary habits and metabolism following pre-season training in Division III American football players. Methods : Seventeen Division III football players (Ht: 1.80±0.6 m; BM: 99.1±60.1 kg; FFM: 79.7±8.6 kg; BF%: 19.3±8.6%) had their body composition and resting energy expenditure (REE) assessed in a fasted state (>12 hr.) before and upon completion of pre-season training. Pre-season training consisted of 14 days of intense training. Results : Linemen had a higher body mass, fat-free mass (FFM), and fat mass likely contributing to the higher REE (p