Accuracy of a novel multi-sensor board for measuring physical activity and energy expenditure.
Accuracy of a novel multi-sensor board for measuring physical activity and energy expenditure.
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DOI：
10.1007/s00421-011-1834-2
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发表时间：
2011-09
影响因子：
3
通讯作者：
Borriello G
中科院分区：
文献类型：
--
作者：
Duncan GE;Lester J;Migotsky S;Goh J;Higgins L;Borriello G
将身体活动与健康联系起来的能力取决于准确的测量。然而，由于几个因素，现有的方法都不完全令人满意。本研究检查了多传感器板（MSB）的准确性，该板推断活动类型（坐、站、走、爬楼梯和跑步）并估计57名成人（32名女性）39.2 ± 13.5岁的能量消耗。在实验室中，受试者在跑步机上以选定的速度和等级行走和跑步，每次3分钟（随机顺序为六个阶段），同时连接到固定的热量计，之前和之后是短暂的坐姿和站立。在另一天，受试者在连接到便携式热量计的现场完成脚本活动。将MSB连接到右髋关节处的带子上。受试者在第三天重复一种条件（随机选择）。在实验室和现场，与记录的放射性（正确识别的放射性/总放射性× 100）相比，推断的放射性的准确性分别为97%和84%。能量消耗绝对准确率[100 -绝对值（千卡MSB -千卡热量计/千卡热量计）× 100]在实验室和现场分别为89%和76%，后者与热量计有显著性差异（P < 0.05）。能量消耗的重测信度在两种情况下都有显著性差异（P < 0.0001; r = 0.97）。一般来说，MSB提供了在实验室和现场设置中的活动类型以及在跑步机行走和跑步期间的能量消耗的准确测量，尽管该设备低估了现场的能量消耗。
The ability to relate physical activity to health depends on accurate measurement. Yet, none of the available methods are fully satisfactory due to several factors. This study examined the accuracy of a multi-sensor board (MSB) that infers activity types (sitting, standing, walking, stair climbing, and running) and estimates energy expenditure in 57 adults (32 females) 39.2 ± 13.5 years. In the laboratory, subjects walked and ran on a treadmill over a select range of speeds and grades for 3 min each (six stages in random order) while connected to a stationary calorimeter, preceded and followed by brief sitting and standing. On a different day, subjects completed scripted activities in the field connected to a portable calorimeter. The MSB was attached to a strap at the right hip. Subjects repeated one condition (randomly selected) on the third day. Accuracy of inferred activities compared with recorded activities (correctly identified activities/total activities × 100) was 97 and 84% in the laboratory and field, respectively. Absolute accuracy of energy expenditure [100 – absolute value (kilocalories MSB – kilocalories calorimeter/kilocalories calorimeter) × 100] was 89 and 76% in the laboratory and field, the later being different (P < 0.05) from the calorimeter. Test–retest reliability for energy expenditure was significant in both settings (P < 0.0001; r = 0.97). In general, the MSB provides accurate measures of activity type in laboratory and field settings and energy expenditure during treadmill walking and running although the device underestimates energy expenditure in the field.
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影响因子：
120.7
作者：
PATE, RR;PRATT, M;WILMORE, JH
通讯作者：
WILMORE, JH
影响因子：
158.5
作者：
Knowler, WC;Barrett-Connor, E;Nathan, DM
通讯作者：
Nathan, DM
DOI：
10.1249/mss.0b013e318164c407
发表时间：
2008-05-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Troped, Philip J.;Oliveira, Marcelo S.;Craig, Bruce A.
通讯作者：
Craig, Bruce A.
DOI：
10.1249/01.mss.0000126585.40962.22
发表时间：
2004-05-01
期刊：
MEDICINE AND SCIENCE IN SPORTS AND EXERCISE
影响因子：
--
作者：
Zhang, K;Pi-Sunyer, FX;Boozer, CN
通讯作者：
Boozer, CN
影响因子：
158.5
作者：
HELMRICH, SP;RAGLAND, DR;PAFFENBARGER, RS
通讯作者：
PAFFENBARGER, RS