Cited by 120Body Composition Measurement TechniquesSports Performance and TrainingPhysical Education and Training Studies

Reliability and validity of body composition measures in female athletes

Fornetti, Willa C., Pivarnik, James M., Foley, Jeanne M., Fiechtner, Justus J.·1999·Journal of Applied Physiology

Abstract

The purpose of this investigation was to determine the reliability and validity of bioelectrical impedance (BIA) and near-infrared interactance (NIR) for estimating body composition in female athletes. Dual-energy X-ray absorptiometry was used as the criterion measure for fat-free mass (FFM). Studies were performed in 132 athletes [age = 20.4 ± 1.5 (SD) yr]. Intraclass reliabilities (repeat and single trial) were 0.987–0.997 for BIA (resistance and reactance) and 0.957–0.980 for NIR (optical densities). Validity of BIA and NIR was assessed by double cross-validation. Because correlations were high ( r = 0.969–0.983) and prediction errors low, a single equation was developed by using all 132 subjects for both BIA and NIR. Also, an equation was developed for all subjects by using height and weight only. Results from dual-energy X-ray absorptiometry analysis showed FFM = 49.5 ± 6.0 kg, which corresponded to %body fat (%BF) of 20.4 ± 3.1%. BIA predicted FFM at 49.4 ± 5.9 kg ( r = 0.981, SEE = 1.1), and NIR prediction was 49.5 ± 5.8 kg ( r = 0.975, SEE = 1.2). Height and weight alone predicted FFM at 49.4 ± 5.7 kg ( r = 0.961, SEE = 1.6). When converted to %BF, prediction errors were ∼1.8% for BIA and NIR and 2.9% for height and weight. Results showed BIA and NIR to be extremely reliable and valid techniques for estimating body composition in college-age female athletes.

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Crossref · 10.1152/jappl.1999.87.3.1114

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Authors
Fornetti, W. C., Pivarnik, J. M., Foley, J. M., & Fiechtner, J. J.
Affiliations
  • Departments of Kinesiology and
  • Michigan State University (US)
Venue
Journal of Applied Physiology
Published
1999-09-01
Volume
87
Issue
3
Pages
1114-1122
ISSN
  • 0161-7567 (ISSN-L)
  • 8750-7587
  • 1522-1601
OpenAlex
W1961927277
Cited by
120
References
47
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 3 · 2022: 3 · 2021: 6 · 2020: 3 · 2019: 6 · 2018: 9 · 2017: 6 · 2016: 3 · 2015: 6 · 2014: 3 · 2013: 8 · 2012: 9
FWCI
0.57
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Body Composition Measurement Techniques
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
  • Health Sciences › Health Professions › Physical Therapy, Sports Therapy and Rehabilitation › Physical Education and Training Studies
Keywords
body composition, bioelectrical impedance analysis, near-infrared interactance, fat-free mass, body fat percentage, female athletes, measurement reliability, method validity, dual-energy X-ray absorptiometry, college athletes
MeSH terms
Adolescent, Adult, Body Composition, Data Collection, Female, Humans, Sports, Reproducibility of Results, Absorptiometry, Photon, Electric Impedance, Spectroscopy, Near-Infrared

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