Abstract
Backgrounds: With the aging population, there is an increasing demand for strategies to optimize muscle mass, strength and physical performance in community dwelling older adults. We designed a new innovative e-health intervention “VITAMIN”, including behavior change techniques in exercise and nutrition, and targeting on improvement of physical performance in older adults. The blended home-based exercise intervention contains an exercise application with personalized coaching. Additionally, a dietary protein counseling intervention was designed to complement the exercise intervention. Objectives: To determine the 6-months effectiveness and 12-months sustainability of blended home-based exercise and dietary protein counseling interventions on physical performance in community-dwelling older adults.
Methods: This cluster randomized controlled trial randomized community-dwelling older adults with a regular weekly exercise program into three research groups; 1) no intervention (Control), 2) blended home-based exercise intervention (HBex) or 3) blended home-based exercise intervention with dietary protein counseling (HBex-Pro). The entire study included a 6-month intervention period and a 6-month follow-up. The primary outcome was physical performance assessed by the modified physical performance test (m-PPT). Secondary outcomes included the categories physical functioning, nutritional status, health status, executive functioning and adherence to interventions. An intent-to-treat analytic strategy with Linear Mixed Models of repeated measures was applied to analyze changes over time.
Results: In total 245 older adults were randomized, mean[SD] age 72.0[6.5] years, 71% was female, 44% low education and 54% had comorbidities. For m-PPT no significant intervention effects (HBex,p=.933; HBex-Pro,p=.730) or follow-up effects (HBex,p=.396;HBex-Pro,p=.362) were found. Gait speed, physical activity level, protein intake, appendicular muscle mass, and muscle strength improved significantly in HBex-Pro compared to Control after 6-month intervention. The protein intake, as well as muscle mass and strength remained significantly improved after 12-months as compared to Control.
Conclusion: Although the interventions showed no effect on physical performance, clinically relevant changes were observed in protein intake, muscle mass and physical functioning after 6-months and remained improved after 12-months. Blended home-based exercise training and dietary protein counseling are promising and sustainable strategies to counteract the decline in musclemass and physical functioning in an aging population.
Key words: Aging, Behavioral interventions, E-health, Exercise, Sarcopenia.
Methods: This cluster randomized controlled trial randomized community-dwelling older adults with a regular weekly exercise program into three research groups; 1) no intervention (Control), 2) blended home-based exercise intervention (HBex) or 3) blended home-based exercise intervention with dietary protein counseling (HBex-Pro). The entire study included a 6-month intervention period and a 6-month follow-up. The primary outcome was physical performance assessed by the modified physical performance test (m-PPT). Secondary outcomes included the categories physical functioning, nutritional status, health status, executive functioning and adherence to interventions. An intent-to-treat analytic strategy with Linear Mixed Models of repeated measures was applied to analyze changes over time.
Results: In total 245 older adults were randomized, mean[SD] age 72.0[6.5] years, 71% was female, 44% low education and 54% had comorbidities. For m-PPT no significant intervention effects (HBex,p=.933; HBex-Pro,p=.730) or follow-up effects (HBex,p=.396;HBex-Pro,p=.362) were found. Gait speed, physical activity level, protein intake, appendicular muscle mass, and muscle strength improved significantly in HBex-Pro compared to Control after 6-month intervention. The protein intake, as well as muscle mass and strength remained significantly improved after 12-months as compared to Control.
Conclusion: Although the interventions showed no effect on physical performance, clinically relevant changes were observed in protein intake, muscle mass and physical functioning after 6-months and remained improved after 12-months. Blended home-based exercise training and dietary protein counseling are promising and sustainable strategies to counteract the decline in musclemass and physical functioning in an aging population.
Key words: Aging, Behavioral interventions, E-health, Exercise, Sarcopenia.
| Original language | English |
|---|---|
| Pages (from-to) | S1-S179 |
| Number of pages | 2 |
| Journal | The Journal of Frailty & Aging |
| Volume | 9 |
| Issue number | SUPPL 1 |
| DOIs | |
| Publication status | Published - 10 Mar 2020 |
| Event | ICFSR - International Conference on Frailty & Sarcopenia Research: 10th edition - Toulouse, France Duration: 11 Mar 2020 → 13 Mar 2020 https://frailty-sarcopenia.com/icfsr_stream.php |