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首页> 外文期刊>Medicine and science in sports and exercise >Comparative validity of physical activity measures in older adults.
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Comparative validity of physical activity measures in older adults.

机译：老年人进行体育锻炼的比较效度。

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摘要

PURPOSE: : To compare the validity of various physical activity measures with doubly labeled water (DLW)-measured physical activity energy expenditure (PAEE) in free-living older adults. METHODS: : Fifty-six adults aged >/=65 yr wore three activity monitors (New Lifestyles pedometer, ActiGraph accelerometer, and a SenseWear (SW) armband) during a 10-d free-living period and completed three different surveys (Yale Physical Activity Survey (YPAS), Community Health Activities Model Program for Seniors (CHAMPS), and a modified Physical Activity Scale for the Elderly (modPASE)). Total energy expenditure was measured using DLW, resting metabolic rate was measured with indirect calorimetry, the thermic effect of food was estimated, and from these, estimates of PAEE were calculated. The degree of linear association between the various measures and PAEE was assessed, as were differences in group PAEE, when estimable by a given measure. RESULTS: : All three monitors were significantly correlated with PAEE (r = 0.48-0.60, P < 0.001). Of the questionnaires, only CHAMPS was significantly correlated with PAEE (r = 0.28, P = 0.04). Statistical comparison of the correlations suggested that the monitors were superior to YPAS and modPASE. Mean squared errors for all correlations were high, and the median PAEE from the different tools was significantly different from DLW for all but the YPAS and regression-estimated PAEE from the ActiGraph. CONCLUSIONS: : Objective devices more appropriately rank PAEE than self-reported instruments in older adults, but absolute estimates of PAEE are not accurate. Given the cost differential and ease of use, pedometers seem most useful in this population when ranking by physical activity level is adequate.
机译：目的：：比较在自由活动的老年人中，各种体育活动量度与双标签水（DLW）测量的体育活动能量消耗（PAEE）的有效性。方法：在10天的自由生活期内，年龄大于等于65岁的56名成年人佩戴了三个活动监测器（New Lifestyles计步器，ActiGraph加速度计和SenseWear（SW）臂章），并完成了三项不同的调查（耶鲁体育活动调查（YPAS），老年人社区健康活动模型计划（CHAMPS）和修改后的老年人身体活动量表（modPASE））。使用DLW测量总能量消耗，使用间接量热法测量静息代谢率，估算食物的热效应，并据此计算PAEE的估算值。当通过给定度量估计时，评估了各种度量与PAEE之间的线性关联程度，以及PAEE组中的差异。结果：：所有三个监测器均与PAEE显着相关（r = 0.48-0.60，P <0.001）。在问卷中，只有CHAMPS与PAEE显着相关（r = 0.28，P = 0.04）。相关性的统计比较表明，监控器优于YPAS和modPASE。所有相关性的均方误差均很高，除YPAS和ActiGraph的回归估计PAEE以外，其他所有工具的PAEE中值均与DLW显着不同。结论：在老年人中，与自我报告的仪器相比，客观设备对PAEE的排名更为合适，但PAEE的绝对估计值并不准确。考虑到成本差异和易用性，当按身体活动水平进行排名时，计步器在该人群中似乎最有用。

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