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"Feelfit®"加速器在评估儿童体力活动和静坐时间方面的有效性和可靠性:两种不同加速器的比较研究

Songdhasn Chinapong¹, Korntawat Klinchan², Hanif Abdul Rahman³

¹Institute of Nutrition, Mahidol University, Nakhon Pathom, Thailand.

International journal of exercise science

|September 5, 2025

概括

该设备准确地测量了儿童中度至强度的体力活动 (MVPA). 虽然价格实惠且用户友好,但需要改进以精确测量久坐和轻度活动.

科学领域:

儿童体育活动监测
穿戴式传感器技术的验证
公共卫生监测方法

背景情况:

精确的体力活动 (PA) 测量对公共健康至关重要,但儿童的自我报告方法有限.
尤其是在资源有限的环境中, 需要实惠,易于使用的设备.
对于ActiGraph®等已知加速度计来说,Feelfit®是一个潜在的替代品.

研究的目的:

将Feelfit®设备的性能与ActiGraph®加速度计进行评估.
评估Feelfit®在测量儿童体力活动强度方面的有效性和可靠性.

主要方法:

涉及39名儿童的准实验设计 (年龄为11.4±0.5岁).
在不同强度的活动中同时使用Feelfit®和ActiGraph®设备.
统计分析包括配对的t测试,布兰德-阿尔特曼图和类内相关系数 (ICC).

主要成果:

在中度至强度体力活动 (MVPA) 方面,Feelfit®与ActiGraph®表现良好.
过高估计了静坐时间和低估了轻量级的体力活动.
对于MVPA的可靠性中等 (ICC=0. 43),但对于久坐时间的可靠性较低 (ICC=0. 11).

结论:

Feelfit®是适合儿童测量MVPA的廉价工具,具有可接受的有效性和可靠性.
为了准确评估静坐和轻度体力活动水平,需要进行改进.
Feelfit®的易用性和成本效益使其在各种环境中的研究具有价值.

关键词:

测量精度孩子们身体活动公众健康监测研究资源

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