Effects of natural polyphenol-rich pomegranate juice supplementation on plasma ion and lipid profiles following resistance exercise: a placebo-controlled trial

Nutrition & Metabolism

Nizar Souissi¹  Nicola Luigi Bragazzi²  Mohamed Bouaziz³  Khaled Trabelsi⁴  Hamdi Chtourou⁴  Kais El Abed⁴  Omar Boukhris⁴  Achraf Ammar⁵  Anita Hökelmann⁵  Tarak Driss⁶  Mouna Turki⁷  Fatma Ayadi⁷  Stephen J. Bailey⁸ 

[1] Activité Physique, Sport et Santé, UR18JS01, Observatoire National du Sport;Department of Health Sciences (DISSAL), Postgraduate School of Public Health, University of Genoa;High Institute of Biotechnology, Sfax University;High Institute of Sport and Physical Education, University of Sfax;Institute of Sport Sciences, Otto-von-Guericke University;Interdisciplinary Laboratory in Neurosciences, Physiology and Psychology: Physical Activity, Health and Learning (LINP2-2APS), UFR STAPS, UPL, Paris Nanterre University;Laboratory of Biochemistry, CHU Habib Bourguiba, Sfax University;School of Sport, Exercise and Health Sciences, Loughborough University;

关键词: Supplementation;    Pomegranate juice;    Physical exercise;    Weightlifting;   

DOI  :  10.1186/s12986-020-00451-1

来源: DOAJ

【 摘 要 】

Abstract Background Pomegranate juice (POMj) contains abundant soluble polyphenolic antioxidant compounds and is recommended for its cardioprotective/atheroprotective properties. However, very few studies have investigated the efficacy of POMj supplementation to alter physiological responses during intensive physical exercise. This placebo-controlled study aimed to examine whether supplementation with natural polyphenol-rich-POMj could influence the ionic or lipid responses to an intensive resistance training session in elite athletes. Methods Nine elite weightlifters (21 ± 1 years) performed two Olympic-weightlifting sessions after ingesting placebo and POMj supplements. Venous blood samples were collected at rest and 3 min after each session for assessment of plasma sodium ([Na+]), potassium ([K+]), chloride ([Cl−]), calcium ([Ca2+]), triglyceride ([TG]) and high-density lipoprotein ([HDL-C]), low-density lipoprotein ([HDL-C]) and total ([TC]) cholesterol concentrations. Results Plasma [K+] and [TG] were lowered post-exercise compared to resting values in the PLA condition (p = 0.03 for K+ and p = 0.02 for TG) with no pre-to-post exercise differences in the other plasma ion and lipid markers (p > 0.05). Compared to rest, plasma [Na+] and [Cl−] were increased (p = 0.04, %change = 4.10% for Na+ and p = 0.02, %change = 4.44% for Cl−), but there were no differences in the other plasma ion or lipid markers post-exercise after POMj supplementation (p > 0.05). Post-exercise plasma [Na+], [Cl−], and [HDL-C] were greater following POMj supplementation compared to PLA (p = 0.01 for Cl- and HDL-C, p = 0.02 for Na+, and p = 0.04 for TC), with no between-supplement post-exercise differences in the other ion and lipid markers (p > 0.05). Conclusion In conclusion, supplementation with POMj has the potential to attenuate the acute imbalance of plasma [K+] and to improve blood lipid responses (i.e., HDL-C) following resistance exercises in elite weightlifters. However, further large research in both athletic and non-athletic populations is needed to corroborate these preliminary observations and to elucidate the potential underlying mechanisms and translational potential of our novel observations. Trial registration Name of the registry: ClinicalTrials.gov PRS The registration number: NCT02697903 . Date of Registry: 03/03/2016 ‘Retrospectively registered’. The registration title: Pomegranate Improve Biological Recovery Kinetics in Elite Weightlifter. Graphical abstract

【 授权许可】

Unknown