Cowley Emma S, Watson Paula M, Foweather Lawrence, Belton Sarahjane, Mansfield Chiara, Whitcomb-Khan Gabriella, Cacciatore Isabella, Thompson Andrew, Thijssen Dick, Wagenmakers Anton J M
Research Institute for Sport and Exercise Sciences, Liverpool John Moores University, Room 1.22 Tom Reilly Building, Byrom Street Campus, Liverpool L3 5AF, UK.
School of Health and Human Performance, Dublin City University, D09 Y5NO Dublin, Ireland.
Children (Basel). 2021 Jan 22;8(2):76. doi: 10.3390/children8020076.
This is a formative evaluation study of the HERizon Project, a home-based multi-component physical activity (PA) intervention for adolescent girls in the UK and Ireland. Although not intended, this study coincided with the initial COVID-19 lockdown restrictions.
A total of 42 female participants, aged 13 to 16 years old (mean = 14.2, SD = 1.1), were randomly allocated to: (i) the HERizon group ( = 22) or (ii) the wait-list control group ( = 20). Participants in the six-week HERizon group were asked to complete three PA sessions each week and engage in weekly behaviour change support video calls. The primary outcome measure was self-reported habitual PA. Secondary outcomes measures included cardiorespiratory fitness (20 m shuttle run), muscular strength (standing long jump), muscular endurance (push up test), and psychosocial outcomes (Perceived Competence Scale, Body Appreciation Scale, Self-Esteem Questionnaire, Behavioural Regulation in Exercise Questionnaire). Quantitative and qualitative process evaluation data were also collected. Outcome measures were assessed at baseline and after the six-week intervention.
There was no significant change in habitual PA between groups (LMM group*time interaction: = 0.767). The HERizon group had significantly increased cardiorespiratory fitness ( = 0.001), muscular endurance ( = 0.022), intrinsic motivation ( = 0.037), and body appreciation ( < 0.003) in comparison to the wait-list control group. All participants in the intervention group completed the intervention and compliance to the intervention was high (participants completed 18 ± 2 sessions).
Although no change in PA was observed, HERizon resulted in improved physical fitness and psychosocial outcomes. These preliminary findings, alongside positive findings for feasibility and acceptability, highlight potential benefits from the home-based intervention, thus further investigation is warranted.
这是一项针对HERizon项目的形成性评估研究，该项目是一项针对英国和爱尔兰青少年女孩的基于家庭的多成分体育活动（PA）干预措施。尽管并非有意为之，但该研究恰逢新冠疫情首次封锁限制措施实施。
共有42名年龄在13至16岁之间（平均年龄=14.2，标准差=1.1）的女性参与者被随机分配到：（i）HERizon组（n=22）或（ii）等待名单对照组（n=20）。HERizon组的参与者被要求每周完成三次体育活动课程，并参加每周一次的行为改变支持视频通话。主要结局指标是自我报告的习惯性体育活动。次要结局指标包括心肺适能（20米穿梭跑）、肌肉力量（立定跳远）、肌肉耐力（俯卧撑测试）和心理社会结局（感知能力量表、身体欣赏量表、自尊问卷、运动行为调节问卷）。还收集了定量和定性的过程评估数据。结局指标在基线和为期六周的干预后进行评估。
两组之间的习惯性体育活动没有显著变化（线性混合模型组*时间交互作用：F=0.767）。与等待名单对照组相比，HERizon组的心肺适能（F=0.001）、肌肉耐力（F=0.022）、内在动机（F=0.037）和身体欣赏（F<0.003）显著提高。干预组的所有参与者都完成了干预，干预依从性很高（参与者完成了18±2次课程）。
尽管未观察到体育活动的变化，但HERizon项目改善了身体素质和心理社会结局。这些初步发现，连同可行性和可接受性方面的积极发现，凸显了基于家庭的干预措施的潜在益处，因此有必要进行进一步研究。
