P10-04 Effects of a web-based versus a print-based physical activity intervention for community-dwelling older adults: Results of a randomized trial with a cross-over design

Abstract Background Despite the crucial role of regular physical activity (PA) for preventing chronic non-communicable diseases, fewer than half of older adults in Germany engage in the recommended levels. Objective: The aim of this study was to compare acceptance and effectiveness of two interventions for PA promotion among initially inactive community-dwelling adults aged 60 years and above in a nine-month randomized trial with a cross-over design. Methods Participants were recruited offline and randomized to (a) a print-based intervention (PRINT n = 113) and (b) a web-based intervention (WEB, n = 129). Thirty percent (n = 38) of those in group (b) received a PA tracker in addition to WEB (WEB+, (c)). All intervention groups were offered ten weekly face-to-face group sessions led by trained student assistants. Afterwards, participants could choose to stay in their group or cross over to one of the other groups. Group sessions were continued monthly for another six months. Three-dimensional accelerometers to assess PA at baseline (T0), three-months (T1) and nine-months (T2) were employed. Intervention acceptance was assessed via self-administered paper-based questionnaires. Linear mixed models were used to calculate differences in moderate-to-vigorous PA (MVPA) between time points and intervention groups. Results Of the initially recruited n = 242 participants, n = 91 (37.6%) were randomized to the WEB group, n = 38 (15.7%) to WEB+ and n = 113 (46.7%) to PRINT and n = 195 participants completed T1. Only n = 1 moved from WEB to PRINT and n = 15 from PRINT to WEB (WEB-WEB: n = 103, PRINT-PRINT: n = 76), when offered to cross over at T1. One-hundred and sixty participants completed T2. MVPA in min per day increased between baseline and T1, but these within-group changes in time disappeared after adjusting for covariates. MVPA decreased by 9 min/day between baseline and T2 (βtime = -9.37, 95% CI: [-18.58; -0.16]), regardless of intervention group (WEB vs. PRINT: βgroup*time = -3.76, 95% CI: [-13.33; 5.82], WEB+ vs. PRINT: βgroup*time = 1.40, 95% CI: [-11.04; 13.83]). Intervention acceptance was generally high. Conclusions Despite high levels of acceptance of web- and print-based interventions for PA promotion and little movement between groups at T1, when given the choice, participation was not associated with increases in PA over time.


Background
Despite the crucial role of regular physical activity (PA) for preventing chronic non-communicable diseases, fewer than half of older adults in Germany engage in the recommended levels.
Objective: The aim of this study was to compare acceptance and effectiveness of two interventions for PA promotion among initially inactive community-dwelling adults aged 60 years and above in a nine-month randomized trial with a cross-over design. Methods Participants were recruited offline and randomized to (a) a print-based intervention (PRINT n = 113) and (b) a web-based intervention (WEB, n = 129). Thirty percent (n = 38) of those in group (b) received a PA tracker in addition to WEB (WEB+, (c)). All intervention groups were offered ten weekly face-toface group sessions led by trained student assistants. Afterwards, participants could choose to stay in their group or cross over to one of the other groups. Group sessions were continued monthly for another six months. Three-dimensional accelerometers to assess PA at baseline (T0), three-months (T1) and nine-months (T2) were employed. Intervention acceptance was assessed via self-administered paper-based questionnaires. Linear mixed models were used to calculate differences in moderate-to-vigorous PA (MVPA) between time points and intervention groups.

Conclusions
Despite high levels of acceptance of web-and print-based interventions for PA promotion and little movement between groups at T1, when given the choice, participation was not associated with increases in PA over time. Keywords: Physical activity, older adults, eHealth, print-based intervention, web-based intervention, physical activity promotion, healthy ageing

Background
The acquisition of health promotion (HP) skills and knowledge is essential for interventions development [1,2]. Considering the increasing recognition of the potential of HP in sports clubs (SC) [3] and the number of HP interventions [4,5], the development of training to optimize their implementation is important. To this end, the MOOC (Massive Open Online Course) PROSCeSS (PROmotion de la Santé dans les Clubs de SportS) was developed. The objective of this work was to evaluate the learning process of the MOOC, its acceptability and its effectiveness on the HP knowledge and on the abilities to implement the learning.

Methods
Questionnaires were sent to participants before and after the training between November and February 2022. The RE-AIM model, measuring reach (affected audience) of the training, effectiveness (knowledge gained), adoption (motivations to participate in the course), implementation (use of learning), and maintenance (long-term use of learning) was used to structure the study. Descriptive and multivariate statistics were performed using SPSS 23.0 software.

Preliminary Results
Of the 2000 learners, 21% completed the pre-MOOC questionnaire and 5% completed the post-MOOC questionnaire. Among non-exclusive categories, 32% of learners were SC coaches, 26% were managers, 43% were practitioners (on average for 10 years) and 46% were HP or sport professionals. A paired sample t-test showed an 11% increase in the post-MOOC knowledge questionnaire score compared to the pre-MOOC questionnaire, as well as a 10% increase in confidence in implementing HP actions. 48% of learners were ''completely satisfied'' with the MOOC and 47% ''quite satisfied''. The strategies of participatory approach, communication and objective were considered as the most important and feasible while the lack of time, financial and human resources were considered the main barriers to learning's implementation. Conclusions SC actors seem to be interested in HP and want to be trained. This MOOC appears to be an effective solution for acquiring knowledge in HP. The results provide indications for the