Comparison of measured and predicted residual lung volume in determining body composition of collegiate wrestlers.
This investigation compared percent fat obtained via underwater weighing using measured and predicted residual lung volume (RLV) in euhydrated and hypohydrated collegiate wrestlers (N = 67). RLV was measured using O(2) rebreathing or O(2) dilution and predicted using 3 equations-Equation 1: (0.019 x height [cm]) + (0.0115 x age [years]) - 2.24; Equation 2: (0.017 x age [years]) + (0.06858 x height [in.]) - 3.477; and Equation 3: (0.0275 age [years]) + (0.0189 height [cm]) - 2.6139. Percent fat determined using RLV Equation 2 did not differ from the value obtained using measured RLV in the euhydrated (10.9 +/- 5.1 vs. 11.5 +/- 5.6% fat) or hypohydrated (10.8 +/- 5.1 vs. 12.3 +/- 5.6% fat) trials. All other percent fat values differed (p < 0.05) from the value obtained using measured RLV in euhydrated subjects. The use of RLV Equation 2 may be a practical alternative to measured RLV in determining percent fat in euhydrated and hypohydrated collegiate wrestlers.
Goss
Fredric L
FL
Center for Exercise and Health-Fitness Research, University of Pittsburgh, Pittsburgh, Pennsylvania 15261, USA. goss@pitt.edu
Robertson
Robert J
RJ
Swan
Pamela D
PD
Harris
Gregory S
GS
Trone
Gregory A
GA
Dube
John J
JJ
Utter
Alan C
AC
D000273:Adipose Tissue / Q000502:physiology; D000328:Adult; D000704:Analysis of Variance; D001823:Body Composition; D001834:Body Water / Q000502:physiology; D006801:Humans; D011237:Predictive Value of Tests; D012115:Residual Volume; D015431:Weight Loss / Q000502:physiology; D014952:Wrestling / Q000502:physiology*