AUTHOR=Sánchez-González Juan Luis , Fernández-Rodríguez Eduardo José , Méndez-Sánchez Roberto , Polo-Ferrero Luis , Puente-González Ana Silvia , de Ramón Cristina , Marcos-Asensio Sara , Blázquez-Benito Patricia , Navarro-Bailón Almudena , Sánchez-Guijo Fermín , Martín-Sánchez Carlos TITLE=Effects of a strength physical exercise program in chronic lymphocytic leukemia patients on quality of life, mental health, and frailty: a randomized controlled trial study protocol JOURNAL=Frontiers in Sports and Active Living VOLUME=7 YEAR=2025 URL=https://www.frontiersin.org/journals/sports-and-active-living/articles/10.3389/fspor.2025.1534861 DOI=10.3389/fspor.2025.1534861 ISSN=2624-9367