Department of Exercise Science, Bloomsburg University, Bloomsburg, PA 17815, USA.
Med Sci Sports Exerc. 2010 Mar;42(3):622-8. doi: 10.1249/MSS.0b013e3181b64ef3.
Resistance exercise is recommended by the major health and sports medicine organizations to maintain good health, but resistance exercise energy expenditure is difficult to measure. Accelerometers offer a viable alternative to estimate energy expenditure during resistance exercise because they are cost effective and do not restrict motion or exercise choice.
: To estimate resistance exercise energy expenditure using accelerometry and to determine whether there are differences in counts of activity during resistance exercise on the basis of accelerometer location.
Thirty men and women (21.6 yr) performed two sets of 10 repetitions of each of eight exercises. During the exercise protocol, participants wore accelerometers (ActiGraph GT1M) on the wrist, waist, and ankle and a portable metabolic system (CosMed K4b(2)).
Activity counts (mean +/- SD) were different between the wrist (61,282 +/- 8358), the ankle (26,886 +/- 3998), and the waist (6565 +/- 2445). Resistance exercise energy expenditure was significantly associated with ankle (r = 0.50; P < 0.01) and waist (r = 0.77; P < 0.001) accelerometer counts, and there was a trend for an association between resistance exercise energy expenditure and wrist accelerometer counts (r = 0.31; P = 0.10). Total waist accelerometer counts explained 59% of the variance (R(2) = 0.59) in energy expenditure. A regression equation to predict resistance exercise energy expenditure including sex, fat-free mass, and counts of activity from the waist accelerometer explained 90% (R(2) = 0.90) of the variance in energy expenditure.
Resistance exercise energy expenditure can be estimated using a uniaxial accelerometer worn at the waist, along with the sex, and fat-free mass, of the participant.
主要的健康和运动医学组织建议进行抗阻运动以保持健康，但抗阻运动的能量消耗难以测量。加速度计提供了一种可行的替代方法，可以估算抗阻运动中的能量消耗，因为它具有成本效益，并且不会限制运动或运动选择。
使用加速度计估计抗阻运动的能量消耗，并确定基于加速度计位置，抗阻运动期间的活动计数是否存在差异。
30 名男性和女性（21.6 岁）进行了 8 项运动的两组各 10 次重复。在运动方案期间，参与者在手腕、腰部和脚踝佩戴加速度计（ActiGraph GT1M），并使用便携式代谢系统（CosMed K4b(2)）。
手腕（61282 +/- 8358）、脚踝（26886 +/- 3998）和腰部（6565 +/- 2445）的活动计数存在差异。抗阻运动能量消耗与脚踝（r = 0.50；P < 0.01）和腰部（r = 0.77；P < 0.001）加速度计计数显著相关，并且与手腕加速度计计数之间存在关联的趋势（r = 0.31；P = 0.10）。抗阻运动能量消耗与总腰围加速度计计数的相关性为 59%（R2 = 0.59）。包括性别、去脂体重和腰围加速度计活动计数的回归方程可解释能量消耗的 90%（R2 = 0.90）。
可以使用佩戴在腰部的单轴加速度计，以及参与者的性别和去脂体重，估算抗阻运动的能量消耗。
