OBJECTIVE:Within exercise class settings, group cohesion has consistently been found to predict adherence behaviors, and has been identified as a salient target for intervention-based initiatives. Drawing upon theorizing from the field of group dynamics, exercise class cohesion is often conceptualized as a dynamic construct that requires several classes to form and once it is formed, continues to change over time. Despite the salience of this "dynamic" contention for informing physical activity interventions, this theorizing has yet to be empirically tested. METHOD:In this study a multilevel modeling framework was used to examine changes in exercise class cohesion over time. Exercisers (N = 395) completed measures of cohesion following the second, fifth, and eighth classes of their respective programs (N = 46). RESULTS:Mean levels of social cohesion changed significantly over time whereas mean levels of task cohesion did not. These patterns were largely consistent across persons and groups. CONCLUSIONS:These findings suggest that within group-based exercise programs social and task cohesion possesses different levels of dynamism, and that this dynamism (or lack thereof) might have important implications for future research and interventions involving physical activity groups.

译文

目的:在锻炼班级设置中,始终发现小组凝聚力可以​​预测依从行为,并已被确定为基于干预措施的重要目标。借鉴团体动力学领域的理论,运动课的凝聚力通常被概念化为一种动态的构造,需要形成多个班级,一旦形成,它就会随着时间的推移而不断变化。尽管这种“动态”竞争对于体育锻炼的干预非常重要,但是这种理论化还没有经过经验检验。
方法:在这项研究中,使用了一个多层次的建模框架来检验运动课内聚力随时间的变化。锻炼者(N = 395)在各自程序的第二,第五和第八类(N = 46)之后完成了对内聚力的测量。
结果:社交凝聚力的平均水平随时间变化显着,而任务凝聚力的平均水平没有变化。这些模式在个人和群体之间基本保持一致。
结论:这些发现表明,在基于小组的锻炼计划中,社交和任务的凝聚力具有不同程度的活力,这种活力(或缺乏这种活力)可能对涉及体育活动群体的未来研究和干预措施具有重要意义。

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