A Long-Term Physical Activity Coaching Program for Patients with Chronic Obstructive Pulmonary Disease: A Randomized Controlled Trial.

PA coaching interventions are effective to improve PA in the short term, yet long-term effects are lacking.

体力活动指导干预在短期内有效改善COPD患者的体力活动，但长期效果尚不明确。

Providing an individualized step goal, feedback, and regular contact with a coach might be important aspects to obtain a long-term effect.

为患者提供个性化的步数目标、反馈以及与教练的定期联系可能是获得长期效果的重要方面。

Objectives: To investigate the effectiveness of a 12-month fully deployed PA coaching intervention to improve and maintain PA in patients with COPD, compared with a light coaching intervention.

目的：研究在慢性阻塞性肺疾病（COPD）患者中，实施为期12个月的全面体力活动（PA）教练干预以改善和维持PA的效果，与轻度教练干预相比较。

Methods: In this multicenter, single-blind randomized controlled trial, participants were randomized to either a full coaching intervention (including an activity tracker and a smartphone application with dynamic goal setting, regular feedback, and contact with a coach) or a light PA coaching group (including an activity tracker, a fixed step goal, and limited feedback or contact with a coach).

方法：在这项多中心、单盲随机对照试验中，参与者被随机分配到全面辅导干预组（包括活动追踪器和一个具有动态目标设定、定期反馈以及与教练联系的智能手机应用程序）或轻度体力活动辅导组（包括活动追踪器、一个固定的步数目标以及有限的反馈或与教练的联系）。

Outcomes were assessed at baseline and at 6- and 12-month follow-up.

结果在基线以及6个月和12个月的随访时进行评估。

Measurements and Main Results: One hundred fifty participants with COPD were randomized to the full (n = 77) and light (n = 73) coaching groups.

测量和主要结果：150名COPD患者被随机分配到全面（n = 77）和轻度（n = 73）辅导组。

No between-group differences were observed for objectively measured PA and perceived amount of PA measured with the Clinical Visit-PROactive Physical Activity instrument at 6-month follow-up (172 ± 367 steps/d [P = 0.64] and 2.5 ± 2.2 points [P = 0.26], respectively) and at 12-month follow-up (-43 ± 372 steps/d [P = 0.91] and 2.1 ± 2.2 points [P = 0.34], respectively).

在6个月和12个月的随访中，使用临床访问-PROactive身体活动工具测量的客观身体活动量和感知的身体活动量在全面和轻度辅导组之间没有观察到组间差异（分别为6个月随访时172 ± 367步/天[P = 0.64]和2.5 ± 2.2分[P = 0.26]；12个月随访时-43 ± 372步/天[P = 0.91]和2.1 ± 2.2分[P = 0.34]）。

Responder rates were similar for the full and light coaching groups at 12 months (19% and 22%, respectively).

在12个月时，完整和轻度辅导组的反应率相似（分别为19%和22%）。

Conclusions: A full coaching intervention providing dynamic individualized step goals, adequate feedback, and regular contact with a coach did not have additional effects on PA at 12 months compared with a light coaching intervention.

结论：与轻度辅导干预相比，提供动态个性化步骤目标、充分反馈和与教练定期接触的完整辅导干预在12个月时对身体活动（PA）没有额外效果。

Clinical trial registered with www.clinicaltrials.gov (NCT04139200).

该临床试验已在www.clinicaltrials.gov注册（NCT04139200）。