Validity of Bioimpedance Spectroscopy in the Assessment of Total Body Water and Body Composition in Wrestlers and Untrained Subjects

Keisuke Shiose, Emi Kondo, Rie Takae, Hiroyuki Sagayama, Keiko Motonaga, Yosuke Yamada, Yoshinari Uehara, Yasuki Higaki, Hideyuki Takahashi and Hiroaki Tanaka
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Keisuke Shiose: Faculty of Education, University of Miyazaki, Miyazaki 889-2192, Japan
Emi Kondo: Japan Institute of Sports Sciences, Tokyo 115-0056, Japan
Rie Takae: Faculty of Sports and Health Science, Fukuoka University, Fukuoka 814-0180, Japan
Hiroyuki Sagayama: Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba 305-8577, Japan
Keiko Motonaga: Japan Institute of Sports Sciences, Tokyo 115-0056, Japan
Yosuke Yamada: Department of Physical Activity, National Institutes of Biomedical Innovation, Health and Nutrition, Tokyo 162-8636, Japan
Yoshinari Uehara: Fukuoka University Institute for Physical Activity, Fukuoka 814-0180, Japan
Yasuki Higaki: Fukuoka University Institute for Physical Activity, Fukuoka 814-0180, Japan
Hideyuki Takahashi: Japan Institute of Sports Sciences, Tokyo 115-0056, Japan
Hiroaki Tanaka: Fukuoka University Institute for Physical Activity, Fukuoka 814-0180, Japan

IJERPH, 2020, vol. 17, issue 24, 1-11

Abstract: Bioimpedance spectroscopy (BIS) is an easy tool to assess hydration status and body composition. However, its validity in athletes remains controversial. We investigated the validity of BIS on total body water (TBW) and body composition estimation in Japanese wrestlers and untrained subjects. TBW of 49 young Japanese male subjects (31 untrained, 18 wrestlers) were assessed using the deuterium dilution method (DDM) and BIS. De Lorenzo’s and Moissl’s equations were employed in BIS for TBW estimation. To evaluate body composition, Siri’s 3-compartment model and published TBW/fat-free mass (FFM) ratio were applied in DDM and BIS, respectively. In untrained subjects, DDM and BIS with de Lorenzo’s equation showed consistent TBW estimates, whereas BIS with Moissl’s equation overestimated TBW ( p < 0.001 vs. DDM). DDM and BIS with de Lorenzo’s equation estimated FFM and percent of fat mass consistently, whereas BIS with Moissl’s equation over-estimated and under-estimated them ( p < 0.001 vs. DDM). In wrestlers, BIS with de Lorenzo’s and Moissl’s equations assessed TBW similarly with DDM. However, the Bland–Altman analysis revealed a proportional bias for TBW in BIS with de Lorenzo’s equation (r = 0.735, p < 0.001). Body composition assessed with BIS using both equations and DDM were not different. In conclusion, BIS with de Lorenzo’s equation accurately estimates the TBW and body composition in untrained subjects, whereas BIS with Moissl’s equation is more valid in wrestlers. Our results demonstrated the usefulness of BIS for assessing TBW and body composition in Japanese male wrestlers.

Keywords: anthropometry; deuterium; body mass index (BMI) (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2020
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