No effect of tart cherry juice or pomegranate juice on recovery from exercise-induced muscle damage in non-resistance trained men

LAMB, Kirstie, RANCHORDAS, Mayur, JOHNSON, Elizabeth, DENNING, Jessica, DOWNING, Faye and LYNN, Tony (2019). No effect of tart cherry juice or pomegranate juice on recovery from exercise-induced muscle damage in non-resistance trained men. Nutrients, 11 (7), e1593.

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Official URL: https://www.mdpi.com/2072-6643/11/7/1593
Link to published version:: https://doi.org/10.3390/nu11071593

Abstract

Tart cherry juice (TC) and pomegranate juice (POM) have been demonstrated to reduce symptoms of exercise-induced muscle damage (EIMD), but their effectiveness has not been compared. This randomized, double-blind, parallel study compared the effects of TC and POM on markers of EIMD. Thirty-six non-resistance trained men (age 24.0 (Interquartile Range (IQR) 22.0, 33.0) years, body mass index (BMI) 25.6 ± 4.0 kg·m−2) were randomly allocated to consume 2 × 250 mL of: TC, POM, or an energy-matched fruit-flavored placebo drink twice daily for nine days. On day 5, participants undertook eccentric exercise of the elbow flexors of their non-dominant arm. Pre-exercise, immediately post-exercise, and at 24 h, 48 h, 72 h and 96 h post-exercise, maximal isometric voluntary contraction (MIVC), delayed onset muscle soreness (DOMS), creatine kinase (CK), and range of motion (ROM) were measured. The exercise protocol induced significant decreases in MIVC (p 0.001; max decrease of 26.8%, 24 h post-exercise) and ROM (p = 0.001; max decrease of 6.8%, 72 h post-exercise) and significant increases in CK (p = 0.03; max increase 1385 U·L−1, 96 h post-exercise) and DOMS (p 0.001; max increase of 26.9 mm, 48 h post-exercise). However, there were no statistically significant differences between treatment groups (main effect of group p > 0.05 or group x time interaction p > 0.05). These data suggest that in non-resistance trained men, neither TC nor POM enhance recovery from high-force eccentric exercise of the elbow flexors.

Item Type: Article
Additional Information: ** From MDPI via Jisc Publications Router ** Licence for this article: https://creativecommons.org/licenses/by/4.0/ **Journal IDs: eissn 2072-6643 **History: published 14-07-2019; accepted 11-07-2019
Uncontrolled Keywords: exercise-induced muscle damage, recovery, polyphenols, tart cherry, pomegranate
Identification Number: https://doi.org/10.3390/nu11071593
SWORD Depositor: Louise Beirne
Depositing User: Louise Beirne
Date Deposited: 18 Jul 2019 10:20
Last Modified: 18 Jul 2019 10:30
URI: http://shura.shu.ac.uk/id/eprint/24873

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