Magnesium and phase angle: a prognostic tool for monitoring cellular integrity in judo athletes
- PMID: 26507750
- DOI: 10.1684/mrh.2015.0389
Magnesium and phase angle: a prognostic tool for monitoring cellular integrity in judo athletes
Abstract
Adequate magnesium (Mg) levels play a vital role in membrane excitability, cell contractility and metabolism, being a key nutrient for sustaining appropriate muscular contraction and performance levels in athletes. Phase angle (PhA), assessed by bioimpedance analysis (BIA), has been reported to be positively associated with most nutritional markers and is an indicator of membrane integrity and water distribution between intra- and extracellular spaces. The aim of the present study was to verify the association between Mg status and PhA as a predictor of cellular health, in a sample of judo athletes from a period of weight stability to prior to competition. Judo athletes (n = 20) from the national team were evaluated on two occasions: during a period when body weight was stable (M1), and prior to competition (M2). Changes between these occasions were calculated as M2-M1. PhA was obtained by bioelectrical impedance spectroscopy at a frequency of 50 KHz. Mg was measured in serum and red blood cells (RBC) by atomic absorption spectrophotometry, and Mg in the diet was assessed from a 24-h diet record over a seven-day period, after an assessment of body composition. Mean PhA did not differ from M1 to M2. However, individual changes in PhA were positively associated with individual changes in serum (r = 0.62, p = 0.004) and RBC Mg (r = 0.45, p = 0.048). This association was independent of weight changes between assessments, but when adjusted for Mg intake changes, only the association between PhA and serum Mg remained significant. These results highlight that in elite athletes PhA may be an indirect indicator of muscular function.
Keywords: athletes; cellular health; magnesium; phase angle.
Similar articles
-
Usefulness of raw bioelectrical impedance parameters in tracking fluid shifts in judo athletes.Eur J Sport Sci. 2020 Jul;20(6):734-743. doi: 10.1080/17461391.2019.1668481. Epub 2019 Sep 26. Eur J Sport Sci. 2020. PMID: 31524089
-
Magnesium and strength in elite judo athletes according to intracellular water changes.Magnes Res. 2010 Sep;23(3):138-41. doi: 10.1684/mrh.2010.0217. Epub 2010 Sep 22. Magnes Res. 2010. PMID: 20860960
-
Body composition and power changes in elite judo athletes.Int J Sports Med. 2010 Oct;31(10):737-41. doi: 10.1055/s-0030-1255115. Epub 2010 Jul 19. Int J Sports Med. 2010. PMID: 20645233
-
Bioelectrical phase angle and impedance vector analysis--clinical relevance and applicability of impedance parameters.Clin Nutr. 2012 Dec;31(6):854-61. doi: 10.1016/j.clnu.2012.05.008. Epub 2012 Jun 12. Clin Nutr. 2012. PMID: 22698802 Review.
-
Body composition in athletes and sports nutrition: an examination of the bioimpedance analysis technique.Eur J Clin Nutr. 2013 Jan;67 Suppl 1:S54-9. doi: 10.1038/ejcn.2012.165. Eur J Clin Nutr. 2013. PMID: 23299872 Review.
Cited by
-
The Effect of Passive Dehydration on Phase Angle and Body Composition: A Bioelectrical Impedance Analysis.Nutrients. 2024 Jul 10;16(14):2202. doi: 10.3390/nu16142202. Nutrients. 2024. PMID: 39064645 Free PMC article.
-
Preoperative Body Composition Correlates with Postoperative Muscle Volume and Degeneration after Total Hip Arthroplasty.Nutrients. 2024 Jan 29;16(3):386. doi: 10.3390/nu16030386. Nutrients. 2024. PMID: 38337672 Free PMC article.
-
Phase angle as a key marker of muscular and bone quality in community-dwelling independent older adults: A cross-sectional exploratory pilot study.Heliyon. 2023 Jun 23;9(7):e17593. doi: 10.1016/j.heliyon.2023.e17593. eCollection 2023 Jul. Heliyon. 2023. PMID: 37539181 Free PMC article.
-
Bioelectrical Impedance Vector Analysis Discriminates Aerobic Power in Futsal Players: The Role of Body Composition.Biology (Basel). 2022 Mar 25;11(4):505. doi: 10.3390/biology11040505. Biology (Basel). 2022. PMID: 35453705 Free PMC article.
-
Bioimpedance to Assess the Body Composition of High-performance Karate Athletes: Applications, Advantages and Perspectives.J Electr Bioimpedance. 2021 Nov 20;12(1):69-72. doi: 10.2478/joeb-2021-0009. eCollection 2021 Jan. J Electr Bioimpedance. 2021. PMID: 35069943 Free PMC article.
Publication types
MeSH terms
Substances
LinkOut - more resources
Full Text Sources