Identifying Athlete Body Fluid Changes During a Competitive Season With Bioelectrical Impedance Vector Analysis
- PMID: 31188697
- DOI: 10.1123/ijspp.2019-0285
Identifying Athlete Body Fluid Changes During a Competitive Season With Bioelectrical Impedance Vector Analysis
Abstract
Purpose: To analyze the association between body fluid changes evaluated by bioelectrical impedance vector analysis and dilution techniques over a competitive season in athletes.
Methods: A total of 58 athletes of both sexes (men: age 18.7 [4.0] y and women: age 19.2 [6.0] y) engaging in different sports were evaluated at the beginning (pre) and 6 months after (post) the competitive season. Deuterium dilution and bromide dilution were used as the criterion methods to assess total body water (TBW) and extracellular water (ECW), respectively; intracellular water (ICW) was calculated as TBW-ECW. Bioelectrical resistance and reactance were obtained with a phase-sensitive 50-kHz bioelectrical impedance analysis device; bioelectrical impedance vector analysis was applied. Dual-energy X-ray absorptiometry was used to assess fat mass and fat-free mass. The athletes were empirically classified considering TBW change (pre-post, increase or decrease) according to sex.
Results: Significant mean vector displacements in the postgroups were observed in both sexes. Specifically, reductions in vector length (Z/H) were associated with increases in TBW and ICW (r = -.718, P < .01; r = -.630, P < .01, respectively) and decreases in ECW:ICW ratio (r = .344, P < .05), even after adjusting for age, height, and sex. Phase-angle variations were positively associated with TBW and ICW (r = .458, P < .01; r = .564, P < .01, respectively) and negatively associated with ECW:ICW (r = -.436, P < .01). Phase angle significantly increased in all the postgroups except in women in whom TBW decreased.
Conclusions: The results suggest that bioelectrical impedance vector analysis is a suitable method to obtain a qualitative indication of body fluid changes during a competitive season in athletes.
Keywords: BIVA; intracellular water; phase angle; total body water; vector length.
Similar articles
-
Phase angle and bioelectrical impedance vector analysis in the evaluation of body composition in athletes.Clin Nutr. 2020 Feb;39(2):447-454. doi: 10.1016/j.clnu.2019.02.016. Epub 2019 Feb 22. Clin Nutr. 2020. PMID: 30850270
-
Suitability of Bioelectrical Based Methods to Assess Water Compartments in Recreational and Elite Athletes.J Am Coll Nutr. 2016 Jul;35(5):413-21. doi: 10.1080/07315724.2015.1058198. Epub 2016 Mar 2. J Am Coll Nutr. 2016. PMID: 26934568
-
Prediction of body water compartments by raw bioelectrical impedance parameters in athletes: Comparison between series and parallel measurements.Scand J Med Sci Sports. 2023 Oct;33(10):1998-2008. doi: 10.1111/sms.14443. Epub 2023 Jul 5. Scand J Med Sci Sports. 2023. PMID: 37403709
-
Body fluid volumes measurements by impedance: A review of bioimpedance spectroscopy (BIS) and bioimpedance analysis (BIA) methods.Med Eng Phys. 2008 Dec;30(10):1257-69. doi: 10.1016/j.medengphy.2008.06.009. Epub 2008 Aug 3. Med Eng Phys. 2008. PMID: 18676172 Review.
-
Predicting body cell mass with bioimpedance by using theoretical methods: a technological review.J Appl Physiol (1985). 1997 May;82(5):1542-58. doi: 10.1152/jappl.1997.82.5.1542. J Appl Physiol (1985). 1997. PMID: 9134904 Review.
Cited by
-
Problems and Opportunities in the use of Bioelectrical Impedance Analysis for Assessing Body Composition During Ketogenic Diets: A Scoping Review.Curr Obes Rep. 2024 May 27. doi: 10.1007/s13679-024-00573-0. Online ahead of print. Curr Obes Rep. 2024. PMID: 38802722 Review.
-
In-Season Longitudinal Hydration/Body Cell Mass Ratio Changes in Elite Rugby Players.Sports (Basel). 2023 Jul 28;11(8):142. doi: 10.3390/sports11080142. Sports (Basel). 2023. PMID: 37624122 Free PMC article.
-
Phase angle and cellular health: inflammation and oxidative damage.Rev Endocr Metab Disord. 2023 Jun;24(3):543-562. doi: 10.1007/s11154-022-09775-0. Epub 2022 Dec 7. Rev Endocr Metab Disord. 2023. PMID: 36474107 Free PMC article. Review.
-
Association between Phase Angle from Bioelectric Impedance and Muscular Strength and Power in Physically Active Adults.Biology (Basel). 2022 Aug 24;11(9):1255. doi: 10.3390/biology11091255. Biology (Basel). 2022. PMID: 36138734 Free PMC article.
-
Effect of resistance training on bioelectrical phase angle in older adults: a systematic review with Meta-analysis of randomized controlled trials.Rev Endocr Metab Disord. 2023 Jun;24(3):439-449. doi: 10.1007/s11154-022-09747-4. Epub 2022 Aug 3. Rev Endocr Metab Disord. 2023. PMID: 35918569 Free PMC article. Review.
LinkOut - more resources
Full Text Sources