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Sprint Interval Exercise Performance in Vegans
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DOI：10.1080/07315724.2021.1893862.png)
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Abstract
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Objective The impact of a vegan diet on sprint interval exercise performance is unknown. Thus, the purpose of the present study was to compare performance during a sprint interval exercise between omnivores and vegans. Methods Nine healthy omnivores (4 men and 5 women) and nine healthy vegans (4 men and 5 women), with similar levels of daily physical activity, performed four bouts (5-min rest between bouts) of a 30-s all-out sprint exercise on a cycle ergometer. Peak power, mean power, fatigue index, and time to reach maximal power output in each bout were recorded. Results There was a higher peak power in bouts 1 and 2 compared with bouts 3 and 4 (p < 0.02), and a higher mean power in bout 1 compared with bouts 2, 3 and 4 (p < 0.02). However, for all bouts, there were no significant difference between omnivores and vegans in peak power (7.60 +/- 1.55 vs. 8.16 +/- 1.27, 7.52 +/- 1.6 vs 7.61 +/- 0.73, 7.00 +/- 1.44 vs. 7.00 +/- 1.05 and 6.95 +/- 1.42 vs. 6.49 +/- 0.90 W.kg(-1), all p > 0.05) and in mean power (5.35 +/- 0.93 vs. 5.69 +/- 0.84, 5.10 +/- 0.88 vs. 5.21 +/- 0.49, 4.79 +/- 0.81 vs. 4.79 +/- 0.45 and 4.81 +/- 0.81 vs. 4.69 +/- 0.47 W.kg(-1), all p > 0.05). Fatigue index and time to reach maximal power output were not affected by diet or bouts (all p > 0.05). Conclusions These findings indicate that a vegan diet does not compromise sprint interval exercise performance.
Keywords:
Vegetarian diets
anerobic performance
sprint interval training
Wingate test
muscle power
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