用加速度计评估身体活动强度和氧气消耗
Matías Briones-Cayupán1, Emily Pozo-Santander1, Magdalena Vega-Raviola1
1School of Physical Therapy, University of Chile.
Journal of visualized experiments : JoVE
|July 7, 2025
概括
客观的体力活动强度评估方法,包括加速度计和间接热量计,显示出差异. 手腕加速度计的测量强度高于腰部,两者与通风门 (VT1,VT2) 有所不同.
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
- 运动科学 运动科学 运动科学
背景情况:
- 对体力活动 (PA) 强度的客观评估对于运动处方和公共健康至关重要.
- 间接热量计和加速度计是常见的方法,但它们在确定运动强度值方面的一致性需要澄清.
- 呼吸器值 (VT1和VT2) 作为运动强度分类的生理标记.
研究的目的:
- 为了比较评估体育活动强度的客观方法.
- 通过间接热量计和三轴加速度计 (手腕和腰部) 来测量PA强度的差异.
- 在增量运动测试中评估加速度计切断值和通风门 (VT1,VT2) 之间的一致性.
主要方法:
- 一项涉及35名大学女性 (22.4 ± 1.9年) 的横截面分析研究.
- 参与者在160米的跑道上进行了标准化的增量步行-慢跑测试 (0.842.37米/秒).
- 收集的数据包括手腕和腰部加速度计,氧气消耗和呼吸器反应,以估计VT1和VT2.
主要成果:
- 在手腕和腰部加速度计测量之间观察到差异,特别是在更高的运动强度时.
- 手腕加速度计通常显示更高的PA强度,特别是在VT1.1以上.
- 加速度计衍生强度水平与确定的VT1和VT2之间存在显著差异.
结论:
- 评估体育活动强度的常用客观方法缺乏共识.
- 加速度计,特别是在手腕上,可能会高估PA强度与间接热量计衍生的通风值相比.
- 需要进一步的研究来标准化准确确定运动强度值的方法.
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