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Open AccessArticle

No Effect of Tart Cherry Juice or Pomegranate Juice on Recovery from Exercise-Induced Muscle Damage in Non-Resistance Trained Men

1
Food and Nutrition Group, Sheffield Hallam University, Sheffield S1 1WB, UK
2
Academy of Sport and Physical Activity, Sheffield Hallam University, Sheffield S10 2BP, UK
3
Department of Oncology, Human Nutrition, University of Sheffield, Sheffield S10 2TN, UK
*
Author to whom correspondence should be addressed.
Nutrients 2019, 11(7), 1593; https://doi.org/10.3390/nu11071593
Received: 11 June 2019 / Revised: 10 July 2019 / Accepted: 11 July 2019 / Published: 14 July 2019
(This article belongs to the Special Issue Nutrition Support for Athletic Performance)
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. View Full-Text
Keywords: exercise-induced muscle damage; recovery; polyphenols; tart cherry; pomegranate exercise-induced muscle damage; recovery; polyphenols; tart cherry; pomegranate
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Lamb, K.L.; Ranchordas, M.K.; Johnson, E.; Denning, J.; Downing, F.; Lynn, A. No Effect of Tart Cherry Juice or Pomegranate Juice on Recovery from Exercise-Induced Muscle Damage in Non-Resistance Trained Men. Nutrients 2019, 11, 1593.

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