融毁即时能量饮料对年轻健康女性的生热作用：一项双盲、交叉设计研究。
Thermogenic effect of meltdown RTD energy drink in young healthy women: a double blind, cross-over design study.
机构信息
The College of New Jersey, Ewing, NJ 08628-0718, USA.
出版信息
Lipids Health Dis. 2009 Dec 17;8:57. doi: 10.1186/1476-511X-8-57.
BACKGROUND
The purpose of this study was to examine the acute metabolic effects of a high-energy drink in healthy, physically-active women.
METHODS
Ten women (20.4 +/- 0.70 y; 166.9 +/- 7.2 cm; 67.0 +/- 7.0 kg; 29.6 +/- 6.5% body fat) underwent two testing sessions administered in a randomized and double-blind fashion. Subjects reported to the laboratory in a 3-hr post-absorptive state and were provided either 140 ml of the high-energy drink (SUP; commercially marketed as Meltdown RTD) or placebo (P). Subjects consumed two 70 ml doses of SUP or P, separated by 30 min and rested in a semi-recumbent position for 3 hours. Resting oxygen consumption (VO2) and heart rate (HR) were determined every 5 min during the first 30 min and every 10 min during the next 150 min. Blood pressure (BP) was determined every 15 min during the first 30 min and every 30 min thereafter. Area under the curve (AUC) analysis was computed for VO2, whereas a 3-hour average and hourly averages were calculated for respiratory quotient (RQ), total kcal, HR, BP, and profile of mood states (POMS).
RESULTS
AUC analysis revealed a 10.8% difference (p = 0.03) in VO2 between SUP and P. No difference in VO2 was seen between the groups in the first hour, but VO2 in SUP was significantly greater than P in the second (13.9%, p = 0.01) and third hours (11.9%, p = 0.03). A difference (p = 0.03) in energy expenditure was seen between SUP (1.09 +/- 0.10 kcal x min-1) and P (0.99 +/- 0.09 kcal x min-1) for the 3-hour period. Although no difference in energy expenditure was seen in the first hour, significant differences between SUP and P were observed in the second (1.10 +/- 0.11 kcal x min-1 and 0.99 +/- 0.09 kcal x min-1, respectively; p = 0.02) and third hour (1.08 +/- 0.11 kcal x min-1 and 0.99 +/- 0.09 kcal x min-1, respectively; p = 0.05). Average systolic BP was significantly higher (p = 0.007) for SUP (110.0 +/- 3.9 mmHg) compared to P (107.3 +/- 4.4 mmHg). No differences were seen in HR, diastolic BP, or POMS at any time point.
CONCLUSIONS
Results showed a significant increase in energy expenditure in young, healthy women following an acute ingestion of a high-energy drink.
背景
本研究旨在探讨一种高能量饮料对健康、活跃的女性的急性代谢影响。
方法
10 名女性（20.4±0.70 岁；166.9±7.2cm；67.0±7.0kg；29.6±6.5%体脂）以随机和双盲的方式进行了两次测试。受试者在 3 小时的吸收后状态下报告实验室，并提供 140ml 高能量饮料（SUP；商业上称为 Meltdown RTD）或安慰剂（P）。受试者每隔 30 分钟服用两次 70ml 的 SUP 或 P，并在半卧位休息 3 小时。在最初的 30 分钟内，每 5 分钟测定一次静息耗氧量（VO2）和心率（HR），在接下来的 150 分钟内每 10 分钟测定一次。在最初的 30 分钟内，每 15 分钟测定一次血压（BP），此后每 30 分钟测定一次。对 VO2 进行 AUC 分析，对呼吸商（RQ）、总热量、HR、BP 和心境状态剖面图（POMS）进行 3 小时平均值和每小时平均值的计算。
结果
AUC 分析显示 SUP 和 P 之间的 VO2 差异为 10.8%（p=0.03）。在第一小时，两组之间的 VO2 没有差异，但在第二小时（13.9%，p=0.01）和第三小时（11.9%，p=0.03），SUP 的 VO2 明显大于 P。在 3 小时期间，SUP（1.09±0.10 kcal x min-1）和 P（0.99±0.09 kcal x min-1）之间的能量消耗存在差异（p=0.03）。尽管在第一小时没有观察到能量消耗的差异，但在第二小时（1.10±0.11 kcal x min-1 和 0.99±0.09 kcal x min-1，分别；p=0.02）和第三小时（1.08±0.11 kcal x min-1 和 0.99±0.09 kcal x min-1，分别；p=0.05）观察到 SUP 和 P 之间存在显著差异。SUP 的平均收缩压明显高于 P（110.0±3.9mmHg）（107.3±4.4mmHg）（p=0.007）。在任何时间点，HR、舒张压或 POMS 均无差异。
结论
结果表明，年轻健康女性在急性摄入高能量饮料后能量消耗明显增加。
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