PDF(Pubmed)
Abstract：
BACKGROUND: The use of mobile apps has promoted physical activity levels. Recently, with an increasing number of older adults accessing the internet, app-based interventions may be feasible in older populations. Peer support-based interventions have become a common method for promoting health-related behavior change. To our knowledge, the feasibility of using digital peer support apps (DPSAs) to increase physical activity among older adults and its impact on physical activity and physical function have not been investigated.
OBJECTIVE: This study aims to assess the feasibility of using DPSAs in older adults and to assess changes in physical activity and physical function in DPSA users.
METHODS: We conducted a nonrandomized controlled trial of older adults aged ≥65 years. We recruited participants for 2 distinct 12-week programs designed to increase physical activity. Participants could choose between an intervention group (app program and exercise instruction) or a control group (exercise instruction only). DPSA creates a group chat for up to 5 people with a common goal, and participants anonymously post to each other in the group. Once a day, participants posted a set of their step counts, photos, and comments on a group chat box. The intervention group used the DPSA after receiving 2 face-to-face lectures on its use. The participants were characterized using questionnaires, accelerometers, and physical function assessments. The feasibility of the DPSA was assessed using retention and adherence rates. Physical activity was assessed using accelerometers to measure the daily step count, light intensity physical activity, moderate to vigorous intensity physical activity (MVPA), and sedentary behavior. Physical function was assessed using grip strength and the 30-second chair-stand test.
RESULTS: The participants in the intervention group were more frequent users of apps, were more familiar with information and communication technology, and had a higher baseline physical activity level. The retention and adherence rates for the DPSA intervention were 88% (36/41) and 87.7%, respectively, indicating good feasibility. Participants in the intervention group increased their step count by at least 1000 steps and their MVPA by at least 10 minutes using the DPSA. There was a significant difference in the interaction between groups and intervention time points in the daily step count and MVPA (step count, P=.04; duration of MVPA, P=.02). The DPSA increased physical activity, especially in older adults with low baseline physical activity levels.
CONCLUSIONS: The feasibility of DPSA was found to be good, with the intervention group showing increases in daily steps and MVPA. The effects of DPSA on step count, physical activity, and physical function in older adults with low baseline physical activity should be investigated using randomized controlled trials.
OBJECTIVE: This study aims to assess the feasibility of using DPSAs in older adults and to assess changes in physical activity and physical function in DPSA users.
METHODS: We conducted a nonrandomized controlled trial of older adults aged ≥65 years. We recruited participants for 2 distinct 12-week programs designed to increase physical activity. Participants could choose between an intervention group (app program and exercise instruction) or a control group (exercise instruction only). DPSA creates a group chat for up to 5 people with a common goal, and participants anonymously post to each other in the group. Once a day, participants posted a set of their step counts, photos, and comments on a group chat box. The intervention group used the DPSA after receiving 2 face-to-face lectures on its use. The participants were characterized using questionnaires, accelerometers, and physical function assessments. The feasibility of the DPSA was assessed using retention and adherence rates. Physical activity was assessed using accelerometers to measure the daily step count, light intensity physical activity, moderate to vigorous intensity physical activity (MVPA), and sedentary behavior. Physical function was assessed using grip strength and the 30-second chair-stand test.
RESULTS: The participants in the intervention group were more frequent users of apps, were more familiar with information and communication technology, and had a higher baseline physical activity level. The retention and adherence rates for the DPSA intervention were 88% (36/41) and 87.7%, respectively, indicating good feasibility. Participants in the intervention group increased their step count by at least 1000 steps and their MVPA by at least 10 minutes using the DPSA. There was a significant difference in the interaction between groups and intervention time points in the daily step count and MVPA (step count, P=.04; duration of MVPA, P=.02). The DPSA increased physical activity, especially in older adults with low baseline physical activity levels.
CONCLUSIONS: The feasibility of DPSA was found to be good, with the intervention group showing increases in daily steps and MVPA. The effects of DPSA on step count, physical activity, and physical function in older adults with low baseline physical activity should be investigated using randomized controlled trials.
摘要：
背景：移动应用程序的使用提高了身体活动水平。最近,随着越来越多的老年人上网，基于应用程序的干预措施在老年人群中可能是可行的。基于同伴支持的干预措施已成为促进健康相关行为改变的常用方法。据我们所知,尚未研究使用数字同伴支持应用程序（DPSA）增加老年人体育锻炼的可行性及其对体育锻炼和身体功能的影响。
目的：本研究旨在评估在老年人中使用DPSA的可行性，并评估DPSA使用者的身体活动和身体功能的变化。
方法：我们对年龄≥65岁的老年人进行了一项非随机对照试验。我们招募了两个不同的12周计划的参与者，旨在增加身体活动。参与者可以在干预组（应用程序和运动指导）或对照组（仅运动指导）之间进行选择。DPSA为多达5人创建群聊，有一个共同的目标，和参与者匿名在组中互相发布。一天一次,参与者发布了一组他们的步数，照片,和群聊框中的评论。干预组在接受2次面对面的DPSA使用讲座后使用。参与者使用问卷进行表征，加速度计,和身体功能评估。使用保留率和依从率评估DPSA的可行性。使用加速度计评估身体活动以测量每日步数，光强度体力活动，中等至高强度体力活动（MVPA），和久坐的行为。使用握力和30秒椅架测试评估身体功能。
结果：干预组的参与者更频繁地使用应用程序，更熟悉信息和通信技术，并且具有较高的基线体力活动水平。DPSA干预的保留率和依从率分别为88%(36/41)和87.7%,分别,表明良好的可行性。干预组的参与者使用DPSA将他们的步数增加至少1000步，将他们的MVPA增加至少10分钟。在每日步数和MVPA(步数,P=.04；MVPA持续时间，P=.02）。DPSA增加了体力活动，尤其是在基线体力活动水平较低的老年人中。
结论：发现DPSA的可行性很好，干预组显示每日步数和MVPA增加。DPSA对步数的影响,身体活动,基线体力活动较低的老年人的身体功能应使用随机对照试验进行调查.
目的：本研究旨在评估在老年人中使用DPSA的可行性，并评估DPSA使用者的身体活动和身体功能的变化。
方法：我们对年龄≥65岁的老年人进行了一项非随机对照试验。我们招募了两个不同的12周计划的参与者，旨在增加身体活动。参与者可以在干预组（应用程序和运动指导）或对照组（仅运动指导）之间进行选择。DPSA为多达5人创建群聊，有一个共同的目标，和参与者匿名在组中互相发布。一天一次,参与者发布了一组他们的步数，照片,和群聊框中的评论。干预组在接受2次面对面的DPSA使用讲座后使用。参与者使用问卷进行表征，加速度计,和身体功能评估。使用保留率和依从率评估DPSA的可行性。使用加速度计评估身体活动以测量每日步数，光强度体力活动，中等至高强度体力活动（MVPA），和久坐的行为。使用握力和30秒椅架测试评估身体功能。
结果：干预组的参与者更频繁地使用应用程序，更熟悉信息和通信技术，并且具有较高的基线体力活动水平。DPSA干预的保留率和依从率分别为88%(36/41)和87.7%,分别,表明良好的可行性。干预组的参与者使用DPSA将他们的步数增加至少1000步，将他们的MVPA增加至少10分钟。在每日步数和MVPA(步数,P=.04；MVPA持续时间，P=.02）。DPSA增加了体力活动，尤其是在基线体力活动水平较低的老年人中。
结论：发现DPSA的可行性很好，干预组显示每日步数和MVPA增加。DPSA对步数的影响,身体活动,基线体力活动较低的老年人的身体功能应使用随机对照试验进行调查.
