Hunt Toby, Williams Marie T, Olds Tim S
Health and Use of Time Group, Sansom Institute for Health Research, University of South Australia, Adelaide, South Australia, Australia ; Respiratory Clinical Research Unit, Repatriation General Hospital, Daw Park, South Australia, Australia.
PLoS One. 2013 Nov 27;8(11):e81274. doi: 10.1371/journal.pone.0081274. eCollection 2013.
To determine the reliability and validity of the Multimedia Activity Recall for Children and Adults (MARCA) in people with chronic obstructive pulmonary disease (COPD).
People with COPD and their carers completed the Multimedia Activity Recall for Children and Adults (MARCA) for four, 24-hour periods (including test-retest of 2 days) while wearing a triaxial accelerometer (Actigraph GT3X+®), a multi-sensor armband (Sensewear Pro3®) and a pedometer (New Lifestyles 1000®).
Self reported activity recalls (MARCA) and objective activity monitoring (Accelerometry) were recorded under free-living conditions.
24 couples were included in the analysis (COPD; age 74.4 ± 7.9 yrs, FEV1 54 ± 13% Carer; age 69.6 ± 10.9 yrs, FEV1 99 ± 24%).
Not applicable.
Test-retest reliability was compared for MARCA activity domains and different energy expenditure zones. Validity was assessed between MARCA-derived physical activity level (in metabolic equivalent of task (MET) per minute), duration of moderate to vigorous physical activity (min) and related data from the objective measurement devices. Analysis included intra-class correlation coefficients (ICC), Bland-Altman analyses, paired t-tests (p) and Spearman's rank correlation coefficients (rs).
Reliability between occasions of recall for all activity domains was uniformly high, with test-retest correlations consistently >0.9. Validity correlations were moderate to strong (rs = 0.43-0.80) across all comparisons. The MARCA yields comparable PAL estimates and slightly higher moderate to vigorous physical activity (MVPA) estimates.
In older adults with chronic illness, the MARCA is a valid and reliable tool for capturing not only the time and energy expenditure associated with physical and sedentary activities but also information on the types of activities.
确定儿童及成人多媒体活动回忆问卷（MARCA）在慢性阻塞性肺疾病（COPD）患者中的可靠性和有效性。
COPD患者及其照料者在佩戴三轴加速度计（Actigraph GT3X+®）、多传感器臂带（Sensewear Pro3®）和计步器（New Lifestyles 1000®）的情况下，分四个24小时时段（包括为期2天的重测）完成儿童及成人多媒体活动回忆问卷（MARCA）。
在自由生活条件下记录自我报告的活动回忆（MARCA）和客观活动监测（加速度计测量）。
24对夫妇纳入分析（COPD患者；年龄74.4±7.9岁，第一秒用力呼气容积[FEV1]54±13%；照料者；年龄69.6±10.9岁，FEV1 99±24%）。
不适用。
比较MARCA活动领域和不同能量消耗区域的重测信度。评估MARCA得出的身体活动水平（每分钟代谢当量任务[MET]）、中度至剧烈身体活动持续时间（分钟）与客观测量设备相关数据之间的效度。分析包括组内相关系数（ICC）、布兰德-奥特曼分析、配对t检验（p）和斯皮尔曼等级相关系数（rs）。
所有活动领域回忆场合之间的信度均一致较高，重测相关性始终>0.9。所有比较中的效度相关性为中度至高度（rs = 0.43 - 0.80）。MARCA得出的身体活动水平估计值相当，中度至剧烈身体活动（MVPA）估计值略高。
在患有慢性疾病的老年人中，MARCA是一种有效且可靠的工具，不仅可用于获取与身体活动和久坐活动相关的时间和能量消耗，还能获取活动类型的信息。
