Department of Kinesiology and Community Health, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Behav Med. 2011 Oct;37(4):125-31. doi: 10.1080/08964289.2011.636769.
The present study adopted an interrupted time-series design for identifying the possibility of behavioral reactivity and examining the effect of an Internet-delivered behavioral intervention for increasing self-reported and objectively-measured physical activity among persons with multiple sclerosis (MS). Participants (n = 18) wore an accelerometer for 7 days and completed a battery of questionnaires to measure physical activity at 3 time points (before and after a 3-month period of no treatment and again after a 3-month period of treatment). There was a small change in objectively-measured, but not self-reported, physical activity in the period of no treatment, whereas there was a large increase in self-reported and objectively-measured physical activity in the period of treatment. These findings both complement and extend previous research and further support the efficacy of the current Internet behavioral intervention for increasing physical activity in persons with MS.
本研究采用中断时间序列设计，以确定行为反应的可能性，并检验一种互联网为基础的行为干预措施对多发性硬化症（MS）患者自我报告和客观测量的身体活动的影响。参与者（n = 18）佩戴加速度计 7 天，并在 3 个时间点（治疗前和 3 个月无治疗期后，以及治疗后 3 个月后）完成一系列问卷以测量身体活动。在无治疗期间，客观测量的身体活动只有微小变化，但自我报告的身体活动没有变化，而在治疗期间，自我报告和客观测量的身体活动都有很大增加。这些发现既补充和扩展了以前的研究，也进一步支持了当前互联网行为干预措施对增加多发性硬化症患者身体活动的有效性。
