The Effect of Green Tea Supplementation and Strengthening Exercises with TheraBand on Performance and Time to Exhaustion Following Muscle Fatigue in Elite Volleyball Players
| Author | Mohammad Amin Ashtab | en |
| Author | Zahra Raghi | en |
| Author | Negar Kooroshfard | en |
| Author | Mohammad Hemmatinafar | en |
| Orcid | Mohammad Amin Ashtab [0009-0001-9208-8390] | en |
| Orcid | Zahra Raghi [0000-0001-8100-3518] | en |
| Orcid | Negar Kooroshfard [0000-0002-7586-5987] | en |
| Orcid | Mohammad Hemmatinafar [0000-0001-7585-7592] | en |
| Issued Date | 2026-06-30 | en |
| Abstract | Background: Fatigue is common in sports and can impair athletic performance. Objectives: This study examined the effects of green tea supplementation combined with TheraBand-based resistance training on performance outcomes and time to exhaustion after muscular fatigue in elite volleyball players. Methods: A controlled quasi-experimental design was used, with group allocation performed using random number generation software. Forty elite male volleyball players aged 19.27 ± 1.88 years were randomly assigned to four groups of 10 participants each: TheraBand, green tea, combined TheraBand and green tea, and control. The fatigue protocol was administered on days 1 and 2, and on day 3, agility, vertical jump, and time to exhaustion were measured at pretest. Subsequently, TheraBand exercises and green tea consumption were implemented in the experimental groups for 6 weeks. After 6 weeks, the fatigue protocol was re-administered, and posttesting was conducted on the following day. The control group received no intervention. A mixed repeated-measures ANOVA was used for statistical analysis. Results: A significant time × group interaction was observed for time to exhaustion (P < 0.001, ηp2 = 0.73), vertical jump performance (P < 0.001, ηp2 = 0.42), and agility (P < 0.001, ηp2 = 0.50). Significant main effects of time were also observed for time to exhaustion (P < 0.001, ηp2 = 0.78), vertical jump performance (P < 0.001, ηp2 = 0.47), and agility (P < 0.001, ηp2 = 0.39). A significant main effect of group was observed for time to exhaustion (P < 0.001, ηp2 = 0.40), but not for vertical jump performance or agility (P > 0.05). Conclusions: Taken together, these results indicate that combining TheraBand training with green tea supplementation may improve physical performance and time to exhaustion in elite male volleyball players, with training appearing to be the primary driver of the observed adaptations and green tea supplementation serving a supportive role. | en |
| DOI | https://doi.org/10.5812/jcrps-169716 | en |
| URI | https://brieflands.com/journals/jcrps/articles/169716 | en |
| Keyword | Athletic Performance | en |
| Keyword | Green Tea | en |
| Keyword | Muscle Fatigue | en |
| Keyword | Volleyball | en |
| Publisher | Brieflands | en |
| Title | The Effect of Green Tea Supplementation and Strengthening Exercises with TheraBand on Performance and Time to Exhaustion Following Muscle Fatigue in Elite Volleyball Players | en |
| Type | Research Article | en |