The effect of leaf extract supplementation on exercise-induced muscle damage and muscular performance: a systematic review and meta-analysis

Journal Publication ResearchOnline@JCU
Doma, Kenji;Gahreman, Daniel;Akhilesh, Ramachandran Kumar;Utkarsh, Singh;Connor, Jonathan
Abstract

This systematic review and meta-analysis investigated the effects of leaf-plant extracts typically used for tea beverages on the level of exercise-induced muscle damage. The meta-analysis was conducted by comparing measures between the leaf-extract supplements (SUPP) and placebo (PLA) conditions at 24 h and 48 h following the muscle-damaging protocols from 19 studies with 416 participants. The results showed that the SUPP condition exhibited significantly lower indirect muscle damage markers than the PLA condition at 24- and 48-h post-exercise (p < 0.05). Furthermore, oxidative stress markers were significantly lower for the SUPP condition than the PLA condition at 24-h post-exercise (p [removed] 0.05). In addition, no differences were found for anti-oxidant status at 24- and 48-h post-exercise (p > 0.05) between conditions. Muscle performance measures significantly increased for the SUPP condition than the PLA condition at 24-h post-exercise (p [removed] 0.05). These results demonstrate that leaf plant extracts reduces the level of various biomarkers indicative of exercise-induced stress, although its effect on anti-oxidant status remains equivocal. Nonetheless, leaf-plant extracts typically ingested as a tea beverage may be an effective recovery strategy following strenuous exercises.

Journal

Journal of Sports Sciences

Publication Name

N/A

Volume

39

ISBN/ISSN

1466-447X

Edition

N/A

Issue

17

Pages Count

18

Location

N/A

Publisher

Taylor & Francis

Publisher Url

N/A

Publisher Location

N/A

Publish Date

N/A

Url

N/A

Date

N/A

EISSN

N/A

DOI

10.1080/02640414.2021.1911050