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Ellagitannin consumption improves strength recovery 2-3 d after eccentric exercise.
Med Sci Sports Exerc. 2010 Mar; 42(3):493-8.MS

Abstract

PURPOSE

Dietary supplementation with polyphenols,particularly ellagitannins, may attenuate the muscular damage experienced after eccentric exercise, producing delayed-onset muscle soreness. The purpose of this study was to determine whether ellagitannin supplementation from Wonderful variety pomegranate extract (POMx) improved recovery of skeletal muscle strength after eccentric exercise.

METHODS

Recreationally active males were randomized into a crossover design with either pomegranate extract (POMx) or placebo (PLA), each given during a period of 9 d.To produce delayed-onset muscle soreness, subjects performed two sets of 20 maximal eccentric elbow flexion exercises with one arm.Maximal isometric elbow flexion strength and muscle soreness as well as serum measures of creatine kinase, myoglobin, interleukin 6, and C-reactive protein were made at baseline and 2, 24, 48, 72, and 96 h after exercise.

RESULTS

With both treatments, strength was similarly reduced 2 h after exercise (i.e., 72% of baseline), and recovery of strength was incomplete after 96 h (i.e., 91% of baseline).However, strength was significantly higher in POMx compared with that in PLA at 48 h (85.4% +/- 2.5% and 78.3% +/- 2.6%, P = 0.01) and 72 h (88.9% +/- 2.0% and 84.0% +/- 2.0%, P = 0.009) after exercise. Serum markers of inflammation and muscle damage did not provide insight regarding possible mechanisms.

CONCLUSIONS

Supplementation with ellagitannins from pomegranate extract significantly improves recovery of isometric strength 2-3 d after a damaging eccentric exercise.

Authors+Show Affiliations

Human Performance Laboratory, Department of Kinesiology and Health Education, The University of Texas at Austin, Austin, TX 78712, USA.No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19952825

Citation

Trombold, Justin R., et al. "Ellagitannin Consumption Improves Strength Recovery 2-3 D After Eccentric Exercise." Medicine and Science in Sports and Exercise, vol. 42, no. 3, 2010, pp. 493-8.
Trombold JR, Barnes JN, Critchley L, et al. Ellagitannin consumption improves strength recovery 2-3 d after eccentric exercise. Med Sci Sports Exerc. 2010;42(3):493-8.
Trombold, J. R., Barnes, J. N., Critchley, L., & Coyle, E. F. (2010). Ellagitannin consumption improves strength recovery 2-3 d after eccentric exercise. Medicine and Science in Sports and Exercise, 42(3), 493-8. https://doi.org/10.1249/MSS.0b013e3181b64edd
Trombold JR, et al. Ellagitannin Consumption Improves Strength Recovery 2-3 D After Eccentric Exercise. Med Sci Sports Exerc. 2010;42(3):493-8. PubMed PMID: 19952825.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Ellagitannin consumption improves strength recovery 2-3 d after eccentric exercise. AU - Trombold,Justin R, AU - Barnes,Jill N, AU - Critchley,Leah, AU - Coyle,Edward F, PY - 2009/12/3/entrez PY - 2009/12/3/pubmed PY - 2010/5/27/medline SP - 493 EP - 8 JF - Medicine and science in sports and exercise JO - Med Sci Sports Exerc VL - 42 IS - 3 N2 - PURPOSE: Dietary supplementation with polyphenols,particularly ellagitannins, may attenuate the muscular damage experienced after eccentric exercise, producing delayed-onset muscle soreness. The purpose of this study was to determine whether ellagitannin supplementation from Wonderful variety pomegranate extract (POMx) improved recovery of skeletal muscle strength after eccentric exercise. METHODS: Recreationally active males were randomized into a crossover design with either pomegranate extract (POMx) or placebo (PLA), each given during a period of 9 d.To produce delayed-onset muscle soreness, subjects performed two sets of 20 maximal eccentric elbow flexion exercises with one arm.Maximal isometric elbow flexion strength and muscle soreness as well as serum measures of creatine kinase, myoglobin, interleukin 6, and C-reactive protein were made at baseline and 2, 24, 48, 72, and 96 h after exercise. RESULTS: With both treatments, strength was similarly reduced 2 h after exercise (i.e., 72% of baseline), and recovery of strength was incomplete after 96 h (i.e., 91% of baseline).However, strength was significantly higher in POMx compared with that in PLA at 48 h (85.4% +/- 2.5% and 78.3% +/- 2.6%, P = 0.01) and 72 h (88.9% +/- 2.0% and 84.0% +/- 2.0%, P = 0.009) after exercise. Serum markers of inflammation and muscle damage did not provide insight regarding possible mechanisms. CONCLUSIONS: Supplementation with ellagitannins from pomegranate extract significantly improves recovery of isometric strength 2-3 d after a damaging eccentric exercise. SN - 1530-0315 UR - https://wwww.unboundmedicine.com/medline/citation/19952825/Ellagitannin_consumption_improves_strength_recovery_2_3_d_after_eccentric_exercise_ L2 - https://doi.org/10.1249/MSS.0b013e3181b64edd DB - PRIME DP - Unbound Medicine ER -