La Trobe Rural Health School, La Trobe University, PO Box 199, Bendigo, Victoria, 3552, Australia.
Health Promotion Department, Bendigo Health Care Group, PO Box 126, Bendigo, Victoria, 3552, Australia.
Int J Behav Nutr Phys Act. 2020 Nov 30;17(1):156. doi: 10.1186/s12966-020-01063-x.
The Healthy 4 U-2 study sought to evaluate the effect of a twelve-week, physical activity (PA) coaching intervention for changes and maintenance in PA, anthropometrics and health-related outcomes in adults presenting to an ambulatory hospital clinic.
One hundred and twenty insufficiently active adults were recruited from an ambulatory hospital clinic and randomised to an intervention group that received an education session and five 20-min telephone sessions of PA coaching, or to a control group that received the education session only. ActiGraph GT3X accelerometers were used to measure moderate-to-vigorous physical activity (MVPA) at baseline, post-intervention (3-months) and follow-up (9-months). Secondary outcome measures (anthropometrics, PA self-efficacy, and health-related quality of life) were also assessed at the three time points.
At baseline, the mean age and body mass index of participants were 53 ± 8 years and 31 ± 4 kg/m, respectively. Relative to control, the intervention group increased objectively measured MVPA at post-intervention (p < 0.001) and 9 months follow-up (p < 0.001). At the 9-month follow-up the intervention group completed 22 min/day of MVPA (95% CI: 20 to 25 min/day), which is sufficient to meet the recommended PA guidelines. The intervention group exhibited beneficial changes in body mass (p < 0.001), waist circumference (p < 0.001), body mass index (p < 0.001), PA self-efficacy (p < 0.001), and health-related quality of life (p < 0.001) at the 9-month follow-up.
This study demonstrates that a low contact PA coaching intervention results in beneficial changes in PA, anthropometrics and health-related outcomes in insufficiently active adults presenting to an ambulatory care clinic. The significant beneficial changes were measured at post-intervention and the 9-month follow-up, demonstrating a maintenance effect of the intervention.
Prospectively registered on the Australian and New Zealand Clinical Trials Registry (ANZCTR, Trial registration number: ACTRN12619000036112 .
“健康 4U-2 研究”旨在评估为期 12 周的身体活动（PA）教练干预对在门诊就诊的成年人的 PA 变化和维持、人体测量学和健康相关结果的影响。
从一家门诊诊所招募了 120 名活动不足的成年人，并将他们随机分配到干预组，该组接受一次教育课程和五次 20 分钟的 PA 教练电话会话，或对照组，仅接受教育课程。使用 ActiGraph GT3X 加速度计在基线、干预后（3 个月）和随访（9 个月）时测量中等至剧烈体力活动（MVPA）。在三个时间点还评估了次要结局测量（人体测量学、PA 自我效能和健康相关生活质量）。
在基线时，参与者的平均年龄和体重指数分别为 53±8 岁和 31±4kg/m2。与对照组相比，干预组在干预后（p<0.001）和 9 个月随访时（p<0.001）客观测量的 MVPA 增加。在 9 个月的随访中，干预组完成了 22 分钟/天的 MVPA（95%CI：20 至 25 分钟/天），这足以满足推荐的 PA 指南。干预组在 9 个月的随访中，体重（p<0.001）、腰围（p<0.001）、体重指数（p<0.001）、PA 自我效能（p<0.001）和健康相关生活质量（p<0.001）都有了有益的变化。
这项研究表明，低接触 PA 教练干预可导致门诊就诊的活动不足的成年人在 PA、人体测量学和健康相关结果方面产生有益的变化。在干预后和 9 个月的随访中测量到了显著的有益变化，表明干预具有维持效果。
前瞻性注册于澳大利亚和新西兰临床试验注册中心（ANZCTR，试验注册号：ACTRN12619000036112）。
