Application of the Transtheoretical Model to Physical Activity and Health-related Quality of Life Among Older People Living With Frailty in the Community: The Fitness and Nutrition Program for Seniors (FANS) Study Protocol. ijsn [Internet]. 2024 Mar. 25 [cited 2026 Mar. 7];9(1):p10. Available from: https://journal.chapjulypress.org/index.php/ijsn/article/view/2623