Effect of Feeding on Body Weight Recovery Following an Acute Weight Loss in Amateur Wrestlers

0536 Some researches reported that the positive relationship was shown between weight gain after the official weigh-in and wrestling performance in competitive wrestlers. Wrestlers should be required to achieve weight gain by appropriate feeding for better performance. PURPOSE: To investigate the effect of feeding on body weight recovery following an acute weight loss in amateur wrestlers. METHODS: Ten male wrestlers (age: 22.1 ± 1.9yrs, weight class: 55–84kg) controlling their body weight to their weight categories toward the Japanese Championships participated in this study. Body weight was measured on every morning from one week before the official weigh-in to the day on competition. Dietary intake was also assessed using a dietary record in combination with photography. The magnitude of weight gain and the amount of nutritional intake were estimated for 12-hr, from the official weigh-in on the previous evening to the next early morning of the competition. RESULTS: Wrestlers lost 6.8 ± 2.9% (2.2–6.9kg) of body weight for 1-week toward the competition. Energy and carbohydrate intake were 34.5 ± 12.3 kcal/kg BW (620–2959 kcal) and 5.2 ± 2.4g/kg BW (100–591g), respectively. Water intake from refeeding diet and beverage was 3.52 ± 0.90kg (1.97–4.97kg). Wrestlers gained 5.0 ± 1.8%(1.3–4.8kg) of their body weight. The magnitude of weight gain was positively correlated with the amounts of carbohydrate intake (r = 0.77, p<0.01). Moreover, it tended to correlate with water intake (r = 0.61, p = 0.06). CONCLUSIONS: These data show that sufficient carbohydrate and water intake over 12-hr recovery period may contribute to gain their body weight rapidly.