Reports on the efficacy of physical activity intervention trials usually only include discussion of the primary outcomes. However, assessing factors such as participant retention, adherence and compliance can assist in the accurate interpretation of the overall impact of a program in terms of reach and appeal. A quasi-randomised trial was carried out to assess and compare retention and adherence rates, and compliance with, a twice weekly resistance training program provided either individually at home or in a group format. Retirement villages (n=6) were assigned to either 'Have A Try' (HAT, home-based) or 'Come Have A Try' (CHAT, group-based); both programs included nine strength and two balance exercises. The program involved a 20-week Intervention Phase a 24-week Maintenance Phase and a 20-week On-going Maintenance Phase. One hundred and nineteen participants (mean age 80+/-6 years) were recruited (HAT=38, CHAT=81). There was no difference in retention rates at the end of the Intervention Phase, but significantly more HAT than CHAT participants had dropped out of the study (p<0.01) after the Maintenance Phase and the On-going Maintenance Phase. During the Intervention Phase, over half the HAT and CHAT participants completed > or =75% of the prescribed activity sessions, but adherence was significantly greater in CHAT than HAT during the Maintenance Phase (p<0.01). Participants in CHAT were significantly more compliant than HAT participants (p<0.05). Both home- and group-based formats were successful over the short-term, but, in retirement villages, the group program had better adherence and compliance in the longer-term.

译文

关于体力活动干预试验有效性的报告通常只包括对主要结果的讨论。但是,评估参与者的保留率,依从性和合规性等因素可以帮助准确解释计划在覆盖范围和吸引力方面的总体影响。进行了一项准随机试验,以评估和比较保留率和依从性,以及每周两次在家里或以小组形式提供的阻力训练计划的依从性。退休村 (n = 6) 被分配为 “尝试” (帽子,家庭为基础) 或 “尝试” (聊天,基于小组); 这两个程序都包括9个力量和2个平衡练习。该计划涉及20周的干预阶段,24周的维护阶段和20周的持续维护阶段。招募了119名参与者 (平均年龄80/-6岁) (HAT = 38,CHAT = 81)。在干预阶段结束时,保留率没有差异,但在维持阶段和持续维持阶段后退出研究的CHAT参与者 (p<0.01) 的HAT明显多于CHAT参与者。在干预阶段,超过一半的HAT和CHAT参与者完成了> 或 = 75% 的规定活动会话,但在维护阶段,CHAT的依从性明显高于HAT (p<0.01)。聊天参与者比HAT参与者更顺从 (p<0.05)。基于家庭和基于团体的格式在短期内都是成功的,但是,在退休村,团体计划在长期内具有更好的依从性和合规性。

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