ProMuscle is a combined lifestyle intervention that has been shown effective in improving muscle mass, muscle strength, and physical functioning in community-dwelling older adults. Potentially, it could facilitate older people in maintaining their functional independence.~Despite the promising results, ProMuscle is still not part of daily care. Previously factors influencing successful implementation were identified and implementation strategies targeting these factors were developed and formatted as an implementation toolbox for healthcare professionals.~To increase the likelihood of successful implementation of ProMuscle, this study aims to investigate the PUMP-fit strategy (implementation toolbox) effectiveness on the adoption of ProMuscle in community-care~A hybrid type 3 stepped wedge cluster trial with a mixed method analysis will be conducted to assess the effectiveness of the PUMP-fit implementation toolbox. A stepped wedge trail is chosen because of the ability to compare between clusters, but also within clusters.~Moreover, ProMuscle is already found effective, and the researchers hypothesized that the implementation toolbox should be assessable for all healthcare professionals in the 'Foodvalley'. At last, a stepped wedge design is recommended if there is limited time and a small sample of professionals to recruit from in comparison to the total sample size that is needed to detect any effect.~In addition, the researchers hypothesized that the program would be adapted to specific contexts' outcomes from the recipients of ProMuscle will be collected. A hybrid type three trial aims to investigate the implementation as a primary outcome and the effect of the (adapted) intervention as a secondary outcome.
Implementation of a previously shown (cost-)effective combined lifestyle intervention for community living older adults, ProMuscle, in at least four of the eight communities of the 'Foodvalley' in the Netherlands.