Brooke Skyler M, An Hyun-Sung, Kang Seoung-Ki, Noble John M, Berg Kris E, Lee Jung-Min
1School of Health, Physical Education, and Recreation, University of Nebraska Omaha, Omaha, Nebraska; and 2Graduate School of Education, Yong-In University, Yongin-si, South Korea.
J Strength Cond Res. 2017 Apr;31(4):1097-1106. doi: 10.1519/JSC.0000000000001571.
Brooke, SM, An, H-S, Kang, S-K, Noble, JM, Berg, KE, and Lee, J-M. Concurrent validity of wearable activity trackers under free-living conditions. J Strength Cond Res 31(4): 1097-1106, 2017-The purpose of this study is to evaluate the concurrent validity of wearable activity trackers in energy expenditure (EE) and sleep period time (SPT) under free-living conditions. Ninety-five (28.5 ± 9.8 years) healthy men (n = 34) and women (n = 61) participated in this study. The total EE and SPT were measured using 8 monitors: Nike+ FuelBand SE (NFB), Garmin VivoFit (VF), Misfit Shine (MF), Fitbit Flex (FF), Jawbone UP (JU), Polar Loop (PL), Fitbit Charge HR (FC), and SenseWear Armband Mini (SWA) (criterion measures: SWA for EE and a sleep log for SPT). The mean absolute percent error (MAPE) for EE was 13.0, 15.2, 15.5, 16.1, 16.2, 22.8, and 24.5% for PL, MF, FF, NFB, FC, JU, and VF, respectively. Mean absolute percent errors were calculated for SPT to be 4.0, 8.8, 10.2, 11.5, 12.9, 13.6, 17.5, and 21.61% for VF, FF, JU, FC, MF, SWA laying down, PL, and SWA, respectively. Concurrent validity was examined using equivalence testing on EE (equivalence zone: 2,889.7-3,531.9 kcal); 2 trackers fell short of falling in the zone: PL (2,714.4-3,164.8 kcal) and FC (2,473.8-3,066.5 kcal). For SPT (equivalence zone: 420.6-514.0 minutes), several monitors fell in the zone: PL (448.3-485.6 minutes), MS (442.8-492.2 minutes), and FF (427.7-486.7 minutes). This study suggests that the PL and FC provide a reasonable estimate of EE under free-living conditions. The PL, FC, and MF were the most valid monitors used for measuring SPT.
布鲁克、SM、安、H-S、康、S-K、诺布尔、JM、伯格、KE和李、J-M。自由生活条件下可穿戴活动追踪器的同时效度。《力量与体能研究杂志》31(4): 1097 - 1106，2017年——本研究的目的是评估自由生活条件下可穿戴活动追踪器在能量消耗（EE）和睡眠时间（SPT）方面的同时效度。95名（年龄28.5±9.8岁）健康男性（n = 34）和女性（n = 61）参与了本研究。使用8种监测器测量总能量消耗和睡眠时间：耐克+FuelBand SE（NFB）、佳明VivoFit（VF）、Misfit Shine（MF）、Fitbit Flex（FF）、Jawbone UP（JU）、博能Loop（PL）、Fitbit Charge HR（FC）和SenseWear Armband Mini（SWA）（标准测量：能量消耗用SWA，睡眠时间用睡眠日志）。能量消耗的平均绝对百分比误差（MAPE），PL为13.0%，MF为15.2%，FF为15.5%，NFB为16.1%，FC为16.2%，JU为22.8%，VF为24.5%。睡眠时间的平均绝对百分比误差，VF为4.0%，FF为8.8%，JU为10.2%，FC为11.5%，MF为12.9%，SWA平躺时为13.6%，PL为17.5%，SWA为21.61%。通过对能量消耗进行等效性测试（等效区间：2889.7 - 3531.9千卡）来检验同时效度；有2种追踪器未落在该区间：PL（2714.4 - 3164.8千卡）和FC（2473.8 - 3066.5千卡）。对于睡眠时间（等效区间：420.6 - 514.0分钟），有几种监测器落在该区间：PL（448.3 - 485.6分钟）、MS（442.8 - 492.2分钟）和FF（427.7 - 486.7分钟）。本研究表明，PL和FC在自由生活条件下能对能量消耗提供合理估计。PL、FC和MF是用于测量睡眠时间最有效的监测器。
