对身体活动的生理反应:跨活动强度,年龄,性别,体重和BMI变异性的多传感器可穿戴研究
1Department of Electrical and Computer Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia.
Medicine
|October 7, 2025
概括
身体活动显著影响心率和血压,强度影响心血管反应. 多传感器可穿戴设备可以跟踪这些变化,帮助个性化炼和健康评估.
科学领域:
- 运动生理学 运动生理学
- 心血管健康监测 监测心血管健康
- 可穿戴式传感器技术
背景情况:
- 了解对运动的生理反应对于设计干预措施和评估心血管健康至关重要.
- 多传感器可穿戴设备在体育活动期间提供持续的生理监测.
- 现有研究强调,需要准确的数据来了解不同活动强度如何影响关键心血管标志物.
研究的目的:
- 为了检查不同体力活动强度 (坐着,走路,跑步) 对心率 (HR),静脉血压 (SBP),透气血压和周围氧和 (SpO2) 的影响.
- 研究年龄和体重等人口因素对运动期间心血管反应的影响.
- 用随机森林模型评估心率的生理和人口统计数据的预测准确性.
主要方法:
- 22名健康的成年人接受了三个5分钟的活动条件:坐着,走路 (约3次MET) 和跑步 (约7次MET).
- 通过使用多传感器可穿戴设备 (力,PPG,IMU,ECG) 收集生理数据 (HR,SBP,透气BP,SpO2).
- 数据分析包括重复测量ANOVA,回归分析和随机森林建模,与开源数据集进行验证.
主要成果:
- 较高的活动强度显著增加了HR (P < .001) 和SBP (P < .01).
- HR随着活动的逐步增加,而SBP从坐到跑步大幅增加.
- 在老年参与者中观察到轻微,非临床显著的SpO2下降 (P = .03).
- 年龄和体重与SBP有中等的相关性.
- 随机森林模型对HR的预测准确性较低 (R2 = 0.057),表明需要更多数据.
结论:
- 运动强度直接影响心血管参数,如HR和SBP.
- 可穿戴式传感器有效捕捉个人对身体活动的生理反应.
- 人口因素影响心血管动态,需要进一步的研究来改善个性化健康建议的预测模型.
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