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https://hdl.handle.net/2440/8661
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Type: | Journal article |
Title: | Body composition changes in elite male body builders during preparation for competition |
Author: | Withers, R. Noell, C. Whittingham, N. Chatterton, B. Schultz, C. Keeves, J. |
Citation: | Australian journal of science and medicine in sport, 1997; 29(1):11-16 |
Publisher: | Australian Sports Medicine Federation |
Issue Date: | 1997 |
ISSN: | 0813-6289 |
Statement of Responsibility: | R T Withers, C J Noell, N O Whittingham, B E Chatterton, C G Schultz, J P Keeves |
Abstract: | Anthropometric profiles together with a 4 compartment criterion model of body composition analysis (total body water, bone mineral, fat and residual masses via a combination of deuterium dilution, dual-energy x-ray absorptiometry and hydrodensitometry) were conducted on 3 elite male bodybuilders 10 wk and then 5 d before competition. A mean body mass reduction from 99.70 (Quetelet's Index = 31.6 kg/m2) to 92.79 kg (Quetelet's Index = 29.2 kg/m2) was accompanied by a decline in the sum of 8 skinfold thicknesses (triceps, subscapular, biceps, iliac crest, supraspinale, abdominal, front thigh and medial calf) from 51.1 to 36.7 mm. The 4 compartment body composition model indicated that there were reductions of: percent body fat (%BF) from 9.1 to 5.0%, fat free mass (FFM) from 90.60 to 88.14 kg and fat mass (FM) from 9.10 to 4.65 kg. Sixty-four percent of the 6.91 kg loss in body mass therefore came from the FM. The 2 compartment hydrodensitometric model yielded higher %BFs (initial = 11.2; final = 7.1) than the 4 compartment model (initial = 9.1; final = 5.0) which is theoretically more valid because it controls for biological variability in the percentages of water and bone mineral in the FFM. Nevertheless, both models registered decreases of 4.1%BF. |
Keywords: | Body Composition |
Rights: | Copyright status unknown |
DOI: | 10.999/1234 |
Description (link): | http://www.ncbi.nlm.nih.gov/pubmed/9127683 |
Appears in Collections: | Aurora harvest Medicine publications |
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