Department of Kinesiology, Hope College, Holland, Michigan.
Department of Kinesiology, Boise State University, Boise, Idaho; and.
J Strength Cond Res. 2021 Aug 1;35(8):2165-2169. doi: 10.1519/JSC.0000000000003136.
Rider, BC, Conger, SA, Ditzenberger, GL, Besteman, SS, Bouret, CM, and Coughlin, AM. Examining the accuracy of the Polar A360 monitor. J Strength Cond Res 35(8): 2165-2169, 2021-The purpose of this study was to determine the accuracy of the Polar A360 heart rate (HR) monitor during periods of rest, walking/running, and active/passive recovery from exercise. Thirty collegiate athletes (women n = 15 and men n = 15) wore an A360 monitor and a previously validated chest HR monitor (Polar RS400) that served as the criterion measurement across a range of resting and walking/running intensities. First, subjects rested in a supine, seated, and standing position. Next, each subject walked on a treadmill at 1.6 kilometers per hour (kph). Speed was increased by 1.6 kph every 2 minutes until volitional fatigue. Then, subjects walked at 4.8 kph followed by a seated recovery stage. Heart rate was recorded in 30-second increments. Total mean difference in HR readings, percent accuracy, and intraclass correlation coefficient (ICC) analysis established the level of agreement between devices. Bland-Altman plots and a regression were used to examine the agreement between devices. The A360 demonstrated a strong correlation with the RS400 (r2 = 0.98) across time points. The analysis of variance with repeated measures indicated an overall significant difference (p < 0.001) between devices. The A360 significantly underestimated HR during the 6.4-kph speed only (p < 0.05) (effect size 0.26). The greatest percent accuracy occurred during rest (91%) and recovery (90%). An ICC of 0.98 (SEM: 0.35) demonstrates a strong level of agreement between devices. The A360 is accurate at rest and during various walking and running speeds and thus is a device that can be used with confidence by athletes for specific training purposes. Future research should examine accuracy during weight training and other sport-specific activities.
里德尔，不列颠哥伦比亚省，康杰，SA，迪岑伯格，GL，贝斯特曼，SS，布雷特，CM，和考夫林，AM。检查 Polar A360 监测器的准确性。J 强 2021 年康 Res 35(8)：2165-2169.本研究的目的是确定 Polar A360 心率（HR）监测器在休息、行走/跑步和运动后主动/被动恢复期间的准确性。30 名大学生运动员（女性 n = 15，男性 n = 15）佩戴 A360 监测器和经过验证的胸部 HR 监测器（Polar RS400），在一系列休息和行走/跑步强度下作为标准测量。首先，受试者在仰卧、坐姿和站立位休息。然后，每位受试者在跑步机上以 1.6 公里/小时（kph）的速度行走。每 2 分钟速度增加 1.6 kph，直到自愿疲劳。然后，受试者以 4.8 kph 行走，然后进行坐姿恢复阶段。心率以 30 秒为增量记录。HR 读数的总平均差异、百分比准确性和组内相关系数（ICC）分析确定了设备之间的一致性水平。Bland-Altman 图和回归用于检查设备之间的一致性。A360 与 RS400 之间的相关性很强（r2 = 0.98），在各个时间点。重复测量的方差分析表明，设备之间存在总体显著差异（p < 0.001）。A360 在仅 6.4 kph 速度下显著低估 HR（p < 0.05）（效应量 0.26）。最大百分比准确性发生在休息时（91%）和恢复时（90%）。ICC 为 0.98（SEM：0.35），表明设备之间具有很强的一致性。A360 在休息时和各种行走和跑步速度下都很准确，因此是运动员可以放心用于特定训练目的的设备。未来的研究应该检查在举重训练和其他特定运动的活动中的准确性。
