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A comparison of fat mass and skeletal muscle mass estimation in male ultra-endurance athletes using bioelectrical impedance analysis and different anthropometric methods.
Nutr Hosp. 2011 Nov-Dec; 26(6):1420-7.NH

Abstract

Two hundred and fifty seven male Caucasian ultra-endurance athletes were recruited, pre-race, before different swimming, cycling, running and triathlon races. Fat mass and skeletal muscle mass were estimated using bioelectrical impedance analysis (BIA) and anthropometric methods in order to investigate whether the use of BIA or anthropometry would be useful under field conditions. Total body fat estimated using BIA was significantly high (P < 0.001) compared with anthropometry. When the results between BIA and anthropometry were compared, moderate to low levels of agreement were found. These results were in accordance with the differences found in the Bland-Altman analysis, indicating that the anthropometric equation of Ball et al. had the highest level of agreement (Bias = -3.0 ± 5.8 kg) with BIA, using Stewart et al. (Bias = -6.4 ± 6.3 kg), Faulkner (Bias = -4.7 ± 5.8 kg) and Wilmore-Siri (Bias = -4.8 ± 6.2 kg). The estimation of skeletal muscle mass using BIA was significantly (P < 0.001) above compared with anthropometry. The results of the ICC and Bland-Altman method showed that the anthropometric equation from Lee et al. (Bias = -5.4 ± 5.3 kg) produced the highest level of agreement. The combined method of Janssen et al. between anthropometry and BIA showed a lower level of agreement (Bias = -12.5 ± 5.7 kg). There was a statistically significant difference between the results derived from the equation of Lee et al. and Janssen et al. (P < 0.001). To summarise, the determination of body composition in ultra-endurance athletes using BIA reported significantly high values of fat and skeletal muscle mass when compared with anthropometric equations.

Authors+Show Affiliations

Institute of General Practice and Health Services Research, University of Zurich, Zurich, Switzerland. beat.knechtle@hispeed.chNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

22411391

Citation

Knechtle, B, et al. "A Comparison of Fat Mass and Skeletal Muscle Mass Estimation in Male Ultra-endurance Athletes Using Bioelectrical Impedance Analysis and Different Anthropometric Methods." Nutricion Hospitalaria, vol. 26, no. 6, 2011, pp. 1420-7.
Knechtle B, Wirth A, Knechtle P, et al. A comparison of fat mass and skeletal muscle mass estimation in male ultra-endurance athletes using bioelectrical impedance analysis and different anthropometric methods. Nutr Hosp. 2011;26(6):1420-7.
Knechtle, B., Wirth, A., Knechtle, P., Rosemann, T., Rüst, C. A., & Bescós, R. (2011). A comparison of fat mass and skeletal muscle mass estimation in male ultra-endurance athletes using bioelectrical impedance analysis and different anthropometric methods. Nutricion Hospitalaria, 26(6), 1420-7. https://doi.org/10.1590/S0212-16112011000600032
Knechtle B, et al. A Comparison of Fat Mass and Skeletal Muscle Mass Estimation in Male Ultra-endurance Athletes Using Bioelectrical Impedance Analysis and Different Anthropometric Methods. Nutr Hosp. 2011 Nov-Dec;26(6):1420-7. PubMed PMID: 22411391.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A comparison of fat mass and skeletal muscle mass estimation in male ultra-endurance athletes using bioelectrical impedance analysis and different anthropometric methods. AU - Knechtle,B, AU - Wirth,A, AU - Knechtle,P, AU - Rosemann,T, AU - Rüst,C A, AU - Bescós,R, PY - 2011/05/15/received PY - 2011/06/23/accepted PY - 2012/3/14/entrez PY - 2012/3/14/pubmed PY - 2012/7/4/medline SP - 1420 EP - 7 JF - Nutricion hospitalaria JO - Nutr Hosp VL - 26 IS - 6 N2 - Two hundred and fifty seven male Caucasian ultra-endurance athletes were recruited, pre-race, before different swimming, cycling, running and triathlon races. Fat mass and skeletal muscle mass were estimated using bioelectrical impedance analysis (BIA) and anthropometric methods in order to investigate whether the use of BIA or anthropometry would be useful under field conditions. Total body fat estimated using BIA was significantly high (P < 0.001) compared with anthropometry. When the results between BIA and anthropometry were compared, moderate to low levels of agreement were found. These results were in accordance with the differences found in the Bland-Altman analysis, indicating that the anthropometric equation of Ball et al. had the highest level of agreement (Bias = -3.0 ± 5.8 kg) with BIA, using Stewart et al. (Bias = -6.4 ± 6.3 kg), Faulkner (Bias = -4.7 ± 5.8 kg) and Wilmore-Siri (Bias = -4.8 ± 6.2 kg). The estimation of skeletal muscle mass using BIA was significantly (P < 0.001) above compared with anthropometry. The results of the ICC and Bland-Altman method showed that the anthropometric equation from Lee et al. (Bias = -5.4 ± 5.3 kg) produced the highest level of agreement. The combined method of Janssen et al. between anthropometry and BIA showed a lower level of agreement (Bias = -12.5 ± 5.7 kg). There was a statistically significant difference between the results derived from the equation of Lee et al. and Janssen et al. (P < 0.001). To summarise, the determination of body composition in ultra-endurance athletes using BIA reported significantly high values of fat and skeletal muscle mass when compared with anthropometric equations. SN - 1699-5198 UR - https://www.unboundmedicine.com/medline/citation/22411391/A_comparison_of_fat_mass_and_skeletal_muscle_mass_estimation_in_male_ultra_endurance_athletes_using_bioelectrical_impedance_analysis_and_different_anthropometric_methods_ DB - PRIME DP - Unbound Medicine ER -