Reliability and validity of CHAMPS self-reported sedentary-to-vigorous intensity physical activity in older adults.
Reliability and validity of CHAMPS self-reported sedentary-to-vigorous intensity physical activity in older adults.
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DOI：
10.1123/jpah.9.2.225
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发表时间：
2012-02
影响因子：
3.1
通讯作者：
King AC
中科院分区：
文献类型：
--
作者：
Hekler EB;Buman MP;Haskell WL;Conway TL;Cain KL;Sallis JF;Saelens BE;Frank LD;Kerr J;King AC
最近的研究强调了区分不同类别的体力活动强度作为健康和幸福预测指标的潜在价值。这项研究试图评估来自Champs调查的久坐(即1个Met)、低光(如扑克牌)、高光(即>；2和≤；3 Met；例如轻走)、中等至剧烈体力活动(MVPA，≥3 Met)和“总活动”(≥2 Met)的可靠性和同时效度。此外，本研究还探讨了过度报道和重复报道。Champs的数据来自老年人社区生活质量研究，这是一项对美国两个地区65岁以上成年人进行的观察性研究。受试者(N=870)年龄为75.3±6.8岁，其中56%为女性，71%为白人。Champs的久坐、弱光、强光、总活动量和MVPA变量具有可接受的重测信度(ICCS 0.56-0.70)。ChAMPS强光(ρ=0.2 7)、总活动度(ρ=0.34)和MVPA(ρ=0.37)持续时间与相应强度的加速运动分钟数呈中等相关，而久坐(ρ=0.12)相关性较低，但显著相关。结果表明，几个Champs项目可能容易被过度报告(例如，步行、家务)。Champs项目有效地测量了老年人的强光、总活动量和MVPA，但对于久坐和弱光活动还需要进一步完善。
Recent research highlights the potential value of differentiating between categories of physical activity intensities as predictors of health and well-being. This study sought to assess reliability and concurrent validity of sedentary (ie, 1 METs), low-light (ie, > 1 and ≤2 METs; eg, playing cards), high-light (ie, >2 and <3 METs; eg, light walking), moderate-to-vigorous physical activity (MVPA, ≥3 METs), and “total activity” (≥2 METs) from the CHAMPS survey. Further, this study explored over-reporting and double-reporting. CHAMPS data were gathered from the Seniors Neighborhood Quality of Life Study, an observational study of adults aged 65+ years conducted in 2 US regions. Participants (N = 870) were 75.3 ± 6.8 years old, with 56% women and 71% white. The CHAMPS sedentary, low-light, high-light, total activity, and MVPA variables had acceptable test-retest reliability (ICCs 0.56–0.70). The CHAMPS high-light (ρ = 0.27), total activity (ρ = 0.34), and MVPA (ρ = 0.37) duration scales were moderately associated with accelerometry minutes of corresponding intensity, and the sedentary scale (ρ = 0.12) had a lower, but significant correlation. Results suggested that several CHAMPS items may be susceptible to over-reporting (eg, walking, housework). CHAMPS items effectively measured high-light, total activity, and MVPA in seniors, but further refinement is needed for sedentary and low-light activity.