加速度计指标:健康成人的参考值,与心肺健康的关联以及临床影响
Fabian Schwendinger1, Jonathan Wagner1, Raphael Knaier1
1Division of Sports and Exercise Medicine, Department of Sport, Exercise and Health, University of Basel, Basel, SWITZERLAND.
Medicine and science in sports and exercise
|September 13, 2023
概括
像强度梯度 (IG) 和平均加速度 (AvAcc) 这样的无切点体育活动 (PA) 指标与心肺健康 (CRF) 密切相关. 这些新型指标可以在不同人群中进行比较,并为临床实践提供有价值的见解.
科学领域:
- 运动生理学 运动生理学
- 生物医学工程 生物医学工程
- 公共卫生 公共卫生
背景情况:
- 基于加速器的体力活动 (PA) 评估传统上依赖于特定人群的切割点.
- 没有切点的指标,如强度梯度 (IG) 和平均加速度 (AvAcc),提供了另一种方法.
- 了解这些新型指标与心肺呼吸能力 (CRF) 之间的关系对于临床应用至关重要.
研究的目的:
- 为了研究无切点 (IG,AvAcc) 和基于切点的加速度计PA指标之间的相互关系.
- 在健康成年人和心力衰竭患者中,比较CRF与无切点与基于切点的指标的关联.
- 使用无切点指标,为健康成年人建立与年龄,性别和CRF相关的参考值.
主要方法:
- 在COMPLETE研究中,有463名健康成年人和67名心力衰竭患者参与.
- 参与者佩戴GENEActiv加速计,并接受心肺运动测试.
- 没有切割点 (IG,AvAcc) 和传统的PA指标得到了衍生;开发了"可解释PA"R包.
主要成果:
- 在健康个体中,IG和AvAcc都与CRF独立相关 (调整后R2=73.9%).
- 只有IG在心力衰竭患者中显示出与CRF的独立关联 (调整后R2=38.4%).
- 没有切割点和基于切割点的模型显示了CRF的类似预测价值.
- 针对IG,AvAcc和传统的PA指标的特定年龄和性别的参考值为健康成年人生成.
结论:
- 没有切割点的指标 (IG,AvAcc) 与CRF有很强的关联,这意味着与非传染性疾病和死亡风险的间接联系.
- 与基于切割点的指标不同,IG和AvAcc提供了跨人群的可比性.
- 生成的参考值增强了无切点PA评估的临床翻译和实用性.
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