Repeated mouth rinsing of coffee improves the specific-endurance performance and jump performance of young male futsal players.
| Autor: | Taheri Karami G; Department of Sport Science, Faculty of Education and Psychology, Shiraz University, Shiraz, Iran., Hemmatinafar M; Department of Sport Science, Faculty of Education and Psychology, Shiraz University, Shiraz, Iran., Koushkie Jahromi M; Department of Sport Science, Faculty of Education and Psychology, Shiraz University, Shiraz, Iran., Nemati J, Niknam A; Department of Sport Science, Faculty of Education and Psychology, Shiraz University, Shiraz, Iran. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of the International Society of Sports Nutrition [J Int Soc Sports Nutr] 2023 Dec; Vol. 20 (1), pp. 2214108. |
| DOI: | 10.1080/15502783.2023.2214108 |
| Abstrakt: | Background: Mouth-rinsing with ergogenic solutions such as carbohydrate and caffeinated drinks has been considered among athletes as a practical nutritional strategy. Therefore, this study aimed to determine the effect of repeated coffee mouth-rinsing (CMR) doses on specific performances of futsal players. Method: Twenty-four male futsal players randomly participated in this randomized, double-blind, and crossover design study. During the intervention, participants were randomly placed in four different conditions including 1. low-dose CMR (LDC, n = 6, ~60 mg caffeine); 2. high-dose CMR (HDC, n = 6, ~125 mg caffeine); 3. decaffeinated CMR (PLA, n = 6, ~10 mg caffeine); and 4. no CMR (CON, n = 6). Vertical jump height was measured at baseline, baseline after CMR (baseline-CMR), immediately after the intermittent futsal endurance test (FIET) (IA-FIET), 5 min after the FIET (5"A-FIET) and 10 min after the FIET (10"A-FIET). Perceived fatigue was also measured by visual analogue scale (VAS) at baseline, IA-FIET, 5"A-FIET, and 10"A-FIET. CMR was also performed at baseline, during FIET (Repeated between levels), and 10'A-FIET. The collected data were analyzed (with SPSS software) by one- and two-way repeated measure ANOVA and Bonferroni post hoc test at P < 0.05 level. Results: The findings of the present study illustrated that the perceived fatigue in IA-FIET increased significantly compared to the baseline which was accompanied by a significant decrease in 5"A-FIET and 10"A-FIET compared to IA-FIET ( P < 0.05), and no significant difference was observed between conditions in the baseline, IA-FIET, 5"A-FIET, and 10"A-FIET ( P > 0.05). However, HDC and LDC rose significantly the distance covered in FIET compared to CON and PLA ( P < 0.05). In addition, HDC increased the FIET performance more than LDC ( P < 0.05). Although there was no difference between any of the conditions at baseline ( P > 0.05), baseline-CMR increased significantly the vertical jump height ( P < 0.05). At IA-FIET, vertical jump height decreased to baseline levels in CMR conditions but increased in 5"A-FIET, which remained constant until 10"A-FIET ( P < 0.05). In addition, vertical jump height in HDC and LDC conditions was significantly higher than CON in IA-FIET, 5"A-FIET, and 10"A-FIET. Conclusion: This study showed that repeated CMR with low and high doses is a useful strategy to improve specific futsal performance. However, higher dose CMR appears to have more profound effects on performance improvement than lower doses. |
| Databáze: | MEDLINE |
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