Cobb Kolton M, Chavez Domenico A, Kenyon Jonathan D, Hutelin Zach, Webster Michael J
School of Health Sciences, Valdosta State University, Valdosta, GA, USA.
Int J Exerc Sci. 2021 Apr 1;14(2):222-229. doi: 10.70252/GUNG6262. eCollection 2021.
The purpose of this study was to investigate the influence of acetic acid (apple cider vinegar; ACV) supplementation on resting and exercise energy expenditure and substrate utilization. Using a randomized, double blind, crossover design, 16 healthy subjects were supplemented for 4 d with either ACV (30-ml/d) mixed in 1 L of a non-nutritive lemon-flavored drink or a placebo (PLA). They were then assessed via indirect calorimetry for resting energy expenditure (REE) and substrate utilization. This was immediately followed by the assessment of steady state cycling exercise energy expenditure at 40 W (EEE-40) and 80 W (EEE-80) and substrate utilization. Results: Neither REE nor resting substrate utilization were significantly different between groups ( ≥ .05). During cycling exercise at both 40W and 80W, there were no significant differences observed between groups for energy expenditure (EEE-40: ACV 4.13 ± 0.79, PLA 4.37 ± 0.61 kcal/min; EEE-80: ACV 6.09 ± 0.87, PLA 6.26 ± 0.72 kcal/min) or substrate utilization (40W carbohydrate: ACV 0.72 ± 0.19, PLA 0.76 ± 0.16; fat: ACV 0.15 ± 0.07, PLA 0.16 ± 0.06 g/min), (80W carbohydrate: ACV 1.28 ± 0.32, PLA 1.34 ± 0.35; fat: ACV 0.14 ± 0.10, PLA 0.14 ± 0.10 g/min) ( ≥ .05). Conclusions: Recent findings suggest that chronic acetic acid supplementation is associated with significant reductions in body weight and body fat; however, the findings of the present study suggest that a semi-acute (4 d) acetic acid supplementation does not impact resting or exercise energy expenditure or substrate utilization.
本研究的目的是调查补充醋酸（苹果醋；ACV）对静息和运动能量消耗以及底物利用的影响。采用随机、双盲、交叉设计，16名健康受试者连续4天补充混入1升无营养柠檬味饮料中的ACV（30毫升/天）或安慰剂（PLA）。然后通过间接测热法评估他们的静息能量消耗（REE）和底物利用情况。紧接着评估40瓦（EEE - 40）和80瓦（EEE - 80）稳态循环运动能量消耗及底物利用情况。结果：两组之间的REE和静息底物利用均无显著差异（P≥0.05）。在40瓦和80瓦的循环运动中，两组之间在能量消耗（EEE - 40：ACV组4.13±0.79，PLA组4.37±0.61千卡/分钟；EEE - 80：ACV组6.09±0.87，PLA组6.26±0.72千卡/分钟）或底物利用方面（40瓦时碳水化合物：ACV组0.72±0.19，PLA组0.76±0.16；脂肪：ACV组0.15±0.07，PLA组0.16±0.06克/分钟），（80瓦时碳水化合物：ACV组1.28±0.32，PLA组1.34±0.35；脂肪：ACV组0.14±0.10，PLA组0.14±0.10克/分钟）均未观察到显著差异（P≥0.05）。结论：近期研究结果表明，长期补充醋酸与体重和体脂显著降低有关；然而，本研究结果表明，半急性（4天）补充醋酸不会影响静息或运动能量消耗或底物利用。
