Use of accelerometry to measure physical activity in older adults at risk for mobility disability.

Use of accelerometry to measure physical activity in older adults at risk for mobility disability.
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DOI:
10.1123/japa.16.4.416
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发表时间:
2008-10
影响因子:
1.5
通讯作者:
Haskell WL
Haskell WL
中科院分区:
医学4区
文献类型:
--
作者:
Pruitt LA;Glynn NW;King AC;Guralnik JM;Aiken EK;Miller G;Haskell WL

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我们探索使用 ActiGraph 加速度计来区分体力活动(PA,n = 54)或“成功老龄化”(SA)计划(n = 52)参与者之间的活动水平。还确定了老年人 PA 问卷 (CHAMPS) 与加速度测量变量之间的关系。在 400 米步行过程中测量的个性化加速度计计数阈值 (THRESHIND) 用于识别“有意义的活动”。然后参与者佩戴 ActiGraph 7 天。结果表明,与 SA 组相比,PA 组中超过 THRESHIND 的活动次数·d−1 ≥ 10 分钟更多(1.1 ± 2.0 vs 0.5 ± 0.8,p = 0.05),与 SA 组相比(17,234 ± 15,620,p = 0.05),PA 组中超过 THRESHIND 的活动次数·d−1 更多(28,101 ± 27,521)。 0.02)。活动计数·hr−1 和 CHAMPS 之间的相关性范围为 0.27 – 0.42,p<0.01。 ActiGraph 和 THRESHIND 可能有助于区分有行动障碍风险的老年人的 PA 水平。
We explored using the ActiGraph accelerometer to differentiate activity levels between participants in a physical activity (PA, n=54) or `successful aging' (SA) program (n = 52). The relationship between a PA questionnaire for older adults (CHAMPS) and accelerometry variables was also determined. Individualized accelerometry count thresholds (THRESHIND) measured during a 400-m walk were used to identify “meaningful activity.” Participants then wore the ActiGraph for 7 days. Results indicated more activity bouts·d−1 ≥ 10 min above THRESHIND in the PA group compared to SA group (1.1 ± 2.0 vs 0.5 ± 0.8, p = 0.05) and more activity counts·d−1 above THRESHIND for the PA group (28,101 ± 27,521) compared to the SA group (17,234 ± 15,620, p = 0.02). Correlations between activity counts·hr−1 and CHAMPS ranged from 0.27 – 0.42, p<0.01. The ActiGraph and THRESHIND may be useful for differentiating PA levels in older adults at risk for mobility disability.
DOI: 10.1097/00005768-199805000-00021
发表时间: 1998-05-01
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