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Fluid and Diet Patterns Associated with Weight Cycling and Changes in Body Composition Assessed by Continuous Monitoring Throughout a College Wrestling Season

Lingor, Ryan J1; Olson, Amy2

The Journal of Strength & Conditioning Research: July 2010 - Volume 24 - Issue 7 - p 1763-1772
doi: 10.1519/JSC.0b013e3181db22fb
Original Research

Lingor, RJ and Olson, A. Fluid and diet patterns associated with weight cycling and changes in body composition assessed by continuous monitoring throughout a college wrestling season. J Strength Cond Res 24(7): 1763-1772, 2010-This study examined the methods used to meet certification weight for wrestling and to measure the changes in body composition during 1 season for Division III college wrestlers. Nine college wrestlers completed this study. Body composition was analyzed by underwater weighing (UWW) and multifrequency bioelectrical impedance before and throughout the competitive season. Hydration status was measured by urine osmolality (U osm) and urine specific gravity (U sg). Nutritional intake was measured for 2 1-week periods, once at the beginning and again near the end of the season. Subjects' fat-free mass (FFM) increased an average of 1.8 kg, whereas fat mass (FM) decreased 2.2 kg as indicated by UWW from the beginning to the end of the season. Wrestlers on average cycled their weight 3.4 kg (4.7% of body weight) per week. The majority of wrestlers cut weight by reducing calories and restricting fluids starting 2 days before the competition. U osm and body weights on Friday suggested that for wrestlers to achieve the necessary weight loss by dehydration to “make weight” for a Saturday meet, wrestlers would approach a 5% level of dehydration. No loss of FFM because of weight cycling (WC) was evident to achieve competitive weight. Most wrestlers significantly restricted fluids and caloric intake in the 48 hours before weigh-in.

1Department of Nutrition, St. John's University, Collegeville, Minnesota; and 2Department of Nutrition, College of St. Benedict, Ardolf Science Center, Collegeville, Minnesota

Address correspondence to Ryan J. Lingor,

© 2010 National Strength and Conditioning Association