低频延伸波器对艾滋病毒感染者的加速计活动测量的影响:比较分析
Andre P Dos Santos1, Vitor H F Oliveira1, Amanda L Willig2
1University of Washington, Seattle, WA.
AIDS (London, England)
|January 29, 2026
概括
与正常过器相比,ActiGraph低频延伸 (LFE) 过器显著增加了对中度至强度身体活动 (MVPA) 和步骤的测量. 研究人员建议在使用不同加速度计过器进行比较时谨慎行事.
科学领域:
- 生物医学工程 生物医学工程
- 身体活动流行病学
- 公共卫生 公共卫生
背景情况:
- 加速度计衍生体力活动对于理解健康结果至关重要.
- 不同的加速度计波器设置可能会影响数据解释.
- 标准化数据处理对于研究中可靠的比较至关重要.
研究的目的:
- 为了比较ActiGraph的低频延伸 (LFE) 过器与正常过器对身体活动和久坐行为指标的影响.
- 评估不同参与者子组的过效应的一致性.
主要方法:
- 492名艾滋病毒感染者使用ActiGraph加速度计7-10天.
- 分析久坐,轻度体力活动,中度至强度体力活动 (MVPA) 和使用LFE和正常过器的步骤.
- 统计分析包括威尔科克森的等级总和测试和Quade的ANCOVA.
主要成果:
- 与正常过器相比,LFE过器显著增加了每周的MVPA (213.5比162.4分钟) 和每天的步骤 (11,239比4,853) (P <0.001).
- 在过器之间的静坐和轻度体力活动中观察到最小的差异.
- 这些影响在各种子组中保持一致.
结论:
- LFE波器大大提高了MVPA和步骤的检测,这表明正常波器可能会高估.
- 研究人员在比较使用不同ActiGraph过器设置的研究中的体育活动数据时应谨慎行事.
- 在各个子组中一致的发现强调了LFE过器的强大影响.
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