- 作者：Chris M. Blanchard ; Jill McSweeney ; Nicholas Giacomantonio ; Robert D. Reid ; Ryan E. Rhodes ; John C. Spence ; Donna Murnaghan ; Kerry McGannon
- 关键词：Physical activity trajectories ; Intensity ; Heart disease
- 刊名：Journal of Science and Medicine in Sport
- 出版年：January, 2014
- 年：2014
- 卷：17
- 期：1
- 页码：72-77
- 全文大小：436 K
Objectives
Research suggests that light and moderate to vigorous physical activity (MVPA) has beneficial effects concerning longevity in heart disease patients. Yet, very little is known about the physical activity trajectories of patients who do not attend cardiac rehabilitation programs and whether the demographic/clinical predictors of these trajectories are similar for light and MVPA.Design
Longitudinal.
Methods
Patients (N = 269) completed a questionnaire assessing demographic, clinical, and physical activity variables at baseline, three, six, nine, and 12 months after hospitalization for heart disease. Charts were reviewed for height, weight and clinical diagnosis.
Results
Latent class growth analyses showed two classes of patients emerged for light physical activity (i.e., patients who remained inactive and patients whose physical activity levels significantly declined) and MVPA (i.e., patients whose physical activity significantly increased and patients whose activity levels significantly decreased). Light intensity class membership was predicted by diagnosis (OR = 2.22), whereas MVPA class membership was predicted by gender (OR = .15). Finally, dual trajectory analyses showed that patients whose activity levels declined for one intensity had a high probability of transitioning into the declining group for the other intensity.
Conclusions
Physical activity trajectories for heart disease patients vary as a function of intensity as do the demographic/clinical predictors of these trajectories.