1 Department of Rehabilitation, Physical Therapy Science & Sports, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands.
2 Expertise Center Innovation of Care, Research Group Innovation of Mobility Care, University of Applied Sciences Utrecht, Utrecht, The Netherlands.
Clin Rehabil. 2019 Jul;33(7):1233-1240. doi: 10.1177/0269215519836454. Epub 2019 Mar 13.
To investigate the level of agreement of the behavioural mapping method with an accelerometer to measure physical activity of hospitalized patients.
A prospective single-centre observational study.
A university medical centre in the Netherlands.
Patients admitted to the hospital.
Physical activity of participants was measured for one day from 9 AM to 4 PM with the behavioural mapping method and an accelerometer simultaneously. The level of agreement between the percentages spent lying, sitting and moving from both measures was evaluated using the Bland-Altman method and by calculating Intraclass Correlation Coefficients.
In total, 30 patients were included. Mean (±SD) age was 63.0 (16.8) years and the majority of patients were men ( = 18). The mean percentage of time (SD) spent lying was 47.2 (23.3) and 49.7 (29.8); sitting 42.6 (20.5) and 40.0 (26.2); and active 10.2 (6.1) and 10.3 (8.3) according to the accelerometer and observations, respectively. The Intraclass Correlation Coefficient and mean difference (SD) between the two measures were 0.852 and -2.56 (19.33) for lying; 0.836 and 2.60 (17.72) for sitting; and 0.782 and -0.065 (6.23) for moving. The mean difference between the two measures is small (⩽2.6%) for all three physical activity levels. On patient level, the variation between both measures is large with differences above and below the mean of ⩾20% being common.
The overall level of agreement between the behavioural mapping method and an accelerometer to identify the physical activity levels 'lying', 'sitting' and 'moving' of hospitalized patients is reasonable.
研究行为映射法与加速度计测量住院患者身体活动的一致性水平。
前瞻性单中心观察性研究。
荷兰一所大学医学中心。
住院患者。
同时使用行为映射法和加速度计对参与者从上午 9 点到下午 4 点进行一天的身体活动测量。使用 Bland-Altman 法和计算组内相关系数评估两种测量方法中躺着、坐着和运动所花费的百分比的一致性水平。
共纳入 30 例患者，平均（±SD）年龄为 63.0（16.8）岁，大多数患者为男性（n=18）。根据加速度计和观察，平均（SD）躺着时间百分比分别为 47.2（23.3）和 49.7（29.8）；坐着时间百分比分别为 42.6（20.5）和 40.0（26.2）；活动时间百分比分别为 10.2（6.1）和 10.3（8.3）。两种测量方法的组内相关系数和平均差值（SD）分别为：躺着时为 0.852和-2.56（19.33）；坐着时为 0.836和 2.60（17.72）；活动时为 0.782和-0.065（6.23）。所有三种身体活动水平的平均差值都很小（⩽2.6%）。在患者水平上，两种测量方法之间的差异很大，常见差异大于或小于平均值 20%。
行为映射法与加速度计识别住院患者身体活动水平“躺着”、“坐着”和“运动”的总体一致性水平合理。
