Appleton Institute, School of Health, Medical and Applied Sciences, Central Queensland University, Rockhampton, QLD, Australia.
School of Medicine & Public Health, College of Health, Medicine, and Wellbeing, The University of Newcastle, Callaghan, NSW, Australia.
Int J Behav Nutr Phys Act. 2023 Feb 14;20(1):15. doi: 10.1186/s12966-023-01406-4.
Preliminary evidence suggests that web-based physical activity interventions with tailored advice and Fitbit integration are effective and may be well suited to older adults. Therefore, this study aimed to examine the engagement, acceptability, usability, and satisfaction with 'Active for Life,' a web-based physical activity intervention providing computer-tailored physical activity advice to older adults.
Inactive older adults (n = 243) were randomly assigned into 3 groups: 1) tailoring + Fitbit, 2) tailoring only, or 3) a wait-list control. The tailoring + Fitbit group and the tailoring-only group received 6 modules of computer-tailored physical activity advice over 12 weeks. The advice was informed by objective Fitbit data in the tailoring + Fitbit group and self-reported physical activity in the tailoring-only group. This study examined the engagement, acceptability, usability, and satisfaction of Active for Life in intervention participants (tailoring + Fitbit n = 78, tailoring only n = 96). Wait-list participants were not included. Engagement (Module completion, time on site) were objectively recorded through the intervention website. Acceptability (7-point Likert scale), usability (System Usability Scale), and satisfaction (open-ended questions) were assessed using an online survey at post intervention. ANOVA and Chi square analyses were conducted to compare outcomes between intervention groups and content analysis was used to analyse program satisfaction.
At post-intervention (week 12), study attrition was 28% (22/78) in the Fitbit + tailoring group and 39% (37/96) in the tailoring-only group. Engagement and acceptability were good in both groups, however there were no group differences (module completions: tailoring + Fitbit: 4.72 ± 2.04, Tailoring-only: 4.23 ± 2.25 out of 6 modules, p = .14, time on site: tailoring + Fitbit: 103.46 ± 70.63, Tailoring-only: 96.90 ± 76.37 min in total, p = .56, and acceptability of the advice: tailoring + Fitbit: 5.62 ± 0.89, Tailoring-only: 5.75 ± 0.75 out of 7, p = .41). Intervention usability was modest but significantly higher in the tailoring + Fitbit group (tailoring + Fitbit: 64.55 ± 13.59, Tailoring-only: 57.04 ± 2.58 out of 100, p = .003). Participants reported that Active for Life helped motivate them, held them accountable, improved their awareness of how active they were and helped them to become more active. Conversely, many participants felt as though they would prefer personal contact, more detailed tailoring and more survey response options.
This study supports web-based physical activity interventions with computer-tailored advice and Fitbit integration as engaging and acceptable in older adults.
Australian and New Zealand Clinical Trials Registry: ACTRN12618000646246. Registered April 23 2018, https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=374901.
初步证据表明，基于网络的体力活动干预措施，结合个性化建议和 Fitbit 整合，对老年人是有效且适宜的。因此，本研究旨在检验“积极生活”（Active for Life）的参与度、可接受性、可用性和满意度，这是一项为老年人提供基于网络的体力活动个性化建议的干预措施。
将不活跃的老年人（n=243）随机分为 3 组：1）个性化+Fitbit，2）仅个性化，或 3）候补名单对照。个性化+Fitbit 组和仅个性化组在 12 周内接受 6 个模块的基于计算机的个性化体力活动建议。个性化+Fitbit 组的建议是根据 Fitbit 的客观数据得出的，仅个性化组的建议则是根据自我报告的体力活动得出的。本研究考察了 Active for Life 在干预参与者（个性化+Fitbit 组 n=78，仅个性化组 n=96）中的参与度、可接受性、可用性和满意度。候补名单参与者不包括在内。通过干预网站客观记录参与度（模块完成情况、网站停留时间）。使用在线调查在干预后评估可接受性（7 分李克特量表）、可用性（系统可用性量表）和满意度（开放式问题）。采用方差分析和卡方检验比较干预组之间的结果，并进行内容分析以分析对项目的满意度。
在干预后（第 12 周），Fitbit+个性化组的研究脱落率为 28%（22/78），仅个性化组的脱落率为 39%（37/96）。两组的参与度和可接受性都很好，但组间没有差异（模块完成情况：个性化+Fitbit：6 个模块中的 4.72±2.04，仅个性化：4.23±2.25，p=0.14，网站停留时间：个性化+Fitbit：103.46±70.63，仅个性化：96.90±76.37 min，p=0.56，以及对建议的可接受性：个性化+Fitbit：7 分中的 5.62±0.89，仅个性化：5.75±0.75，p=0.41）。干预的可用性适中，但在个性化+Fitbit 组中显著更高（个性化+Fitbit：64.55±13.59，仅个性化：57.04±2.58，满分 100，p=0.003）。参与者报告说，Active for Life 帮助他们激发了动力，对他们进行了监督，提高了他们对自身活动水平的认识，并帮助他们变得更加活跃。相反，许多参与者表示，他们希望获得更多的个人联系、更详细的个性化建议和更多的调查回复选项。
本研究支持基于网络的体力活动干预措施，结合计算机个性化建议和 Fitbit 整合，对老年人具有吸引力且可接受。
澳大利亚和新西兰临床试验注册中心：ACTRN12618000646246。于 2018 年 4 月 23 日注册，https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=374901。
