School of Kinesiology and Health Studies, Queen's University, Kingston, Ontario, Canada.
Spinal Cord. 2012 Jul;50(7):507-11. doi: 10.1038/sc.2012.11. Epub 2012 Mar 6.
Secondary cross-sectional analyses of a cohort.
To examine seasonal variation in total moderate-to-vigorous leisure-time physical activity (MV-LTPA), exercise and sport participation in a cohort of individuals with spinal cord injury (SCI).
Community (Ontario, Canada).
Participants with SCI (n=695) completed telephone interviews regarding their involvement in MV-LTPA along with social cognitive predictors of MV-LTPA. Logistic regression was used to predict the impact of season on participation in MV-LTPA, exercise and sport. Hierarchical linear regression was used to examine seasonal variation in min per day of MV-LTPA in the active sub-cohort (n=342) with a specific focus on exercise (for example, wheeling), and sport (for example, sledge hockey).
Logistic regressions revealed that season did not predict whether participants engaged in MV-LTPA, exercise or sport. Linear regressions revealed that individuals in the active sub-cohort who completed the questionnaire during the winter reported engaging in less MV-LTPA than those who were interviewed in summer (βsummer=0.14, P<0.05). This pattern was observed for exercise (βsummer=0.16, P<0.05; R2 change=0.018) but not for sport (βsummer=0.076, P=0.68; R2 change=0.014).
Individuals with SCI report less exercise and total LTPA accrued during the winter months; sport was found to be an exception to this case.
队列的二次横断面分析。
在脊髓损伤（SCI）队列中检查总中度至剧烈休闲时间体力活动（MV-LTPA）、锻炼和运动参与的季节性变化。
社区（加拿大安大略省）。
SCI 参与者（n=695）通过电话访谈完成了关于他们参与 MV-LTPA 以及 MV-LTPA 的社会认知预测因素的情况。使用逻辑回归预测季节对 MV-LTPA、锻炼和运动参与的影响。分层线性回归用于检查活跃子队列（n=342）中每天 MV-LTPA 分钟的季节性变化，特别关注锻炼（例如，轮椅）和运动（例如，雪橇曲棍球）。
逻辑回归显示季节不能预测参与者是否参与 MV-LTPA、锻炼或运动。线性回归显示，在冬季完成问卷的活跃子队列中的个体报告的 MV-LTPA 参与量少于夏季接受访谈的个体（βsummer=0.14，P<0.05）。这种模式在锻炼（βsummer=0.16，P<0.05；R2 变化=0.018）中观察到，但在运动中没有观察到（βsummer=0.076，P=0.68；R2 变化=0.014）。
SCI 个体报告冬季锻炼和总 LTPA 参与量较少；运动是这种情况的例外。
