- Tytuł:
- Influence of Beetroot Supplementation on Oxygen Muscle Saturation of Semi-Professional Soccer Players Following a Repeated Sprint Test
- Autorzy:
- Michailidis, Yiannis
- Powiązania:
- https://bibliotekanauki.pl/articles/11542039.pdf
- Data publikacji:
- 2023
- Wydawca:
- Uniwersytet Szczeciński. Wydawnictwo Naukowe Uniwersytetu Szczecińskiego
- Tematy:
-
nitrates
repeated sprint ability
NIRS
muscle oxygenation - Opis:
- Dietary nitrates have hemodynamic and metabolic effects on the body. This study aimed to investigate nitrate intake's effect on quadricep muscle oxygen saturation (StO2) of semi-professional soccer players during a repeated speed test (RSA). In a randomized, crossover design, 10 semi-professional soccer men players (21.3 ± 0.9yrs) performed two conditions: In one they consumed a nitrate-rich concentrated beetroot juice (250 mL/150 mg of NO3−) and in the other a placebo, 2h before a repeated sprint test. StO2 of the right vastus lateralis muscle was measured by near-infrared spectroscopy. A paired samples t-test was used to compute any differences in the subjects’ performance on the StO2 and on RSA test. The level of significance was set at p < 0.05. The supplementation of nitrates limited the decrease in muscle oxygenation during the six sprints of RSA test (p < 0.001) and also, there seemed to be a tendency for limited the decrement of performance on RSA test (t = -1.586, p = 0.157, η2 = 0.218). In conclusion, acute nitrate supplementation reduces the decrement of muscle oxygenation during exercise with repeated sprints and leads to a tendency of fatigue resistance during repeated sprints under controlled situations. Nitrate supplementation may have an ergogenic effect during exercise with repeated sprints via the higher muscle oxygenation.
- Źródło:
-
Central European Journal of Sport Sciences and Medicine; 2023, 42; 55-63
2300-9705
2353-2807 - Pojawia się w:
- Central European Journal of Sport Sciences and Medicine
- Dostawca treści:
- Biblioteka Nauki
Artykuł