Physical activity is identified as a key modifiable factor towards good short- and long-term mental health and has shown positive effects on anxiety and depression in children and adolescents. However, physical activity-based interventions are not a part of standard mental health care and evidence on the effect of such interventions is still lacking. A transdiagnostic, physical activity-based intervention was developed as a supplement to routine clinical care for youth in specialized child and adolescent mental health services. /design. The feasibility of the physical activity intervention (Confident, Active, and Happy Youth) was evaluated in an open-label study by assessing the recruitment process, acceptability, intervention suitability, contentment, and preliminary intervention effects in the form of youth and parent-rated anxiety and depressive symptoms. Physical activity levels were objectively measured using Actigraph™ physical activity sensors, and progression to a definitive study was evaluated in accordance with a priori criteria. In total 21 of 25 eligible youth consented to participate, two dropped out of the intervention and 19 completed (76% of eligible participants). The retention rate among consenting participants was 89% and mean attendance to sessions was 83%. The suitability of the intervention was rated as good by the youth and their parents, and intervention contentment was rated high. Changes in youth and parent-rated symptom measures following the intervention were negligible, except for parent-rated anxiety symptoms assessed at 10-month follow-up. Accelerometer data indicated lower levels of moderate to vigorous activity during sessions than intended. No adverse effects were noted. This feasibility study met the pre-determined progression criteria to a definitive study. Thus, a larger trial with longer follow-up should be conducted to explore the effect of the intervention. ClnicalTrials.gov, NCT05049759. Retrospectively registered, 20.09.2021.

中文翻译：

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对患有焦虑和抑郁的儿童和青少年进行身体活动干预的可行性

体育活动被认为是实现良好的短期和长期心理健康的关键可改变因素，并且对儿童和青少年的焦虑和抑郁具有积极作用。然而，基于身体活动的干预措施并不属于标准心理保健的一部分，并且仍然缺乏此类干预措施效果的证据。开发了一种基于身体活动的跨诊断干预措施，作为专门儿童和青少年心理健康服务中青少年常规临床护理的补充。/设计。在一项开放标签研究中，通过评估招募过程、可接受性、干预适宜性、满意度以及青少年和家长评分形式的初步干预效果，评估了体育活动干预（自信、活跃和快乐的青少年）的可行性。焦虑和抑郁症状。使用 Actigraph™ 身体活动传感器客观测量身体活动水平，并根据先验标准评估最终研究的进展。25 名符合条件的青少年中，共有 21 人同意参与，其中两人退出干预，19 人完成（占合格参与者的 76%）。同意参加者的保留率为 89%，平均出席率为 83%。青少年及其家长对干预的适宜性评价为良好，对干预的满意度评价较高。除了在 10 个月的随访中评估的家长评定的焦虑症状外，干预后青少年和家长评定的症状测量值的变化可以忽略不计。加速计数据表明，训练期间中度至剧烈活动的水平低于预期。没有发现不良反应。该可行性研究符合最终研究的预定进展标准。因此，应该进行更大规模、更长时间随访的试验来探讨干预措施的效果。ClnicalTrials.gov，NCT05049759。追溯注册日期：2021 年 9 月 20 日。