Timmerman J G, Dekker-van Weering M G H, Tönis T M, Hermens H J, Vollenbroek-Hutten M M R
Roessingh Research and Development, Telemedicine Group, Post Box 310, 7500 AH Enschede, The Netherlands; University of Twente, Faculty of Electrical Engineering, Biomedical Signals and Systems, Telemedicine Group, Post Box 217, 7500 AE Enschede, The Netherlands.
Roessingh Research and Development, Telemedicine Group, Post Box 310, 7500 AH Enschede, The Netherlands.
Eur J Oncol Nurs. 2015 Apr;19(2):162-8. doi: 10.1016/j.ejon.2014.09.005. Epub 2014 Oct 22.
This study investigated: (1) physical activity behaviour of cancer survivors throughout the day, (2) the relationship between objective and subjective measures of physical activity, and (3) the relationship between daily physical activity and fatigue.
Physical activity was measured objectively using 3D-accelerometry (expressed in counts per minute (cpm)), and subjectively using a Visual Analogue Scale (VAS; 0-10) implemented on a smartphone in 18 cancer survivors (6 male; age 55.7 ± 10.2 yrs; free from cancer, last treatment ≥three months previously), and matched controls. Fatigue was scored thrice daily on a smartphone (0-10 VAS).
Mean daily physical activity of cancer survivors did not deviate from controls (1108 ± 287 cpm versus 1223 ± 371 cpm, p = .305). However, in cancer survivors physical activity significantly decreased from morning to evening (p < .01) and increased levels of fatigue throughout the day were reported (p < .01). Furthermore, a positive correlation was found between levels of fatigue and the magnitude of the decline in physical activity from afternoon to evening (p < .05). Objective and subjective measured physical activity showed low correlations.
This study demonstrated imbalanced activity patterns in cancer survivors. Also, the more a survivor felt fatigued, the greater the decline in activity behaviour throughout the day. The low correlation between objective and subjective physical activity suggests low awareness in cancer survivors about their daily physical activity performed. Ambulatory monitoring provides new insights in both patterns of physical activity and fatigue, which might be a valuable tool to provide activity management more efficiently during treatment of fatigue.
本研究调查了：（1）癌症幸存者一整天的身体活动行为；（2）身体活动的客观测量与主观测量之间的关系；（3）日常身体活动与疲劳之间的关系。
采用三维加速度计客观测量身体活动（以每分钟计数（cpm）表示），并在18名癌症幸存者（6名男性；年龄55.7±10.2岁；无癌症，上次治疗至少在三个月前）及其匹配的对照组中，使用智能手机上的视觉模拟量表（VAS；0 - 10）主观测量身体活动。每天在智能手机上对疲劳进行三次评分（0 - 10 VAS）。
癌症幸存者的平均每日身体活动量与对照组无差异（1108±287 cpm对1223±371 cpm，p = 0.305）。然而，癌症幸存者的身体活动从早晨到晚上显著下降（p < 0.01），且报告称一整天疲劳程度不断增加（p < 0.01）。此外，发现疲劳程度与下午到晚上身体活动下降幅度之间存在正相关（p < 0.05）。客观测量和主观测量的身体活动显示出低相关性。
本研究表明癌症幸存者的活动模式不均衡。此外，幸存者感到越疲劳，全天活动行为的下降幅度就越大。客观和主观身体活动之间的低相关性表明癌症幸存者对其日常身体活动的意识较低。动态监测为身体活动和疲劳模式提供了新的见解，这可能是在疲劳治疗期间更有效地进行活动管理的宝贵工具。
