Minor M A, Brown J D
Arthritis Rehabilitation Research and Training Center, University of Missouri, Columbia.
Health Educ Q. 1993 Spring;20(1):83-95. doi: 10.1177/109019819302000108.
This study investigated factors related to an initial exercise experience to explain exercise maintenance in 120 adults with rheumatoid arthritis or osteoarthritis. Integral secondary analysis was used to incorporate data from a prospective, controlled trial of exercise (Minor et al.: Arthritis Rheum 32:1396, 1989) with data collected at 18 months follow-up. The dependent variable was self-directed exercise (min/wk) reported at 3, 9, and 18 or more months after exercise class participation. Predictor variables included physical, psychosocial, disease, and programmatic factors. The all possible regressions search procedure resulted in three explanatory models (p = .0001). At 3 months the model (R2 = .45) included initial aerobic capacity, depression, and anxiety; and changes in depression and social activity. The 9-month model (R2 = .35) consisted of initial anxiety and physical activity, change in depression, support of friends for exercise, and exercise behavior at prior assessment. At 18 or more months (R2 = .42), model variables were initial aerobic capacity, change in pain, and exercise behavior at the two prior assessments. Neither disease nor program factors appeared as significant. This limited study indicates that factors associated with exercise behavior in this sample are similar to those in the general population; explanatory factors change over time, and changes ascribed to a trial behavior may influence subsequent decision making.
本研究调查了与初始运动体验相关的因素，以解释120名类风湿性关节炎或骨关节炎成年患者的运动维持情况。采用整合二次分析，将一项运动前瞻性对照试验（Minor等人：《关节炎与风湿病》32:1396，1989）的数据与在18个月随访时收集的数据相结合。因变量是运动课程参与后3个月、9个月以及18个月及以上时报告的自主运动（分钟/周）。预测变量包括身体、心理社会、疾病和项目因素。全可能回归搜索程序得出了三个解释模型（p = .0001）。在3个月时，模型（R2 = .45）包括初始有氧能力、抑郁和焦虑；以及抑郁和社交活动的变化。9个月时的模型（R2 = .35）由初始焦虑和身体活动、抑郁变化、朋友对运动的支持以及先前评估时的运动行为组成。在18个月及以上时（R2 = .42），模型变量为初始有氧能力、疼痛变化以及前两次评估时的运动行为。疾病和项目因素均未表现出显著性。这项有限的研究表明，该样本中与运动行为相关的因素与一般人群中的因素相似；解释因素随时间变化，且归因于试验行为的变化可能会影响后续决策。
