| Abstract: |
Corinna Nerz,1 Franziska Kramer-Gmeiner,2 Carl-Philipp Jansen,1,3 Sarah Labudek,2 Jochen Klenk,1,4,5 Clemens Becker,1,6 Michael Schwenk2,7 1Department for Clinical Gerontology, Robert-Bosch-Hospital, Stuttgart, Germany; 2Network Aging Research (NAR), Heidelberg University, Heidelberg, Germany; 3Institute of Sports and Sports Sciences, Heidelberg University, Heidelberg, Germany; 4Institute of Epidemiology and Medical Biometry, Ulm University, Ulm, Germany; 5IB University of Health and Social Sciences, Study Centre Stuttgart, Stuttgart, Germany; 6Unit Digitale Geriatrie, Medical Faculty of the University Heidelberg, Heidelberg, Germany; 7Human Performance Research Centre, Department of Sport Science, University of Konstanz, Konstanz, GermanyCorrespondence: Corinna Nerz, Department for Clinical Gerontology, Robert-Bosch-Hospital, Auerbachstr. 110, Stuttgart, 70376, Germany, Tel +49 711-81010 6070, Fax +49 711 8101 3194, Email corinna.nerz@rbk.deIntroduction: Lifestyle-integrated Functional Exercise (LiFE) is an effective, individually delivered fall prevention program but comes with substantial resource requirements; hence, a group-format was developed (gLiFE). This study 1) evaluates the program content of two different LiFE formats (group vs individual) and 2) examines the relationship between predictors of training response (dose) and improvements in balance, strength, and physical activity (PA) (response).Material and Methods: The analysis included n = 252 (gLiFE = 126, LiFE = 126) community-dwelling older adults (78.6± 5.2 years). LiFE was administered in seven sessions either in a group (gLiFE: 8â 12 participants) or individually at home (LiFE). Questionnaire-based, descriptive content evaluation (frequency distributions) included reported frequency of practice (days/week, number of activities), activity preferences, safety, intensity, integrability of activities, and acceptance after 6 months of LiFE practice. Predictors (ie, dose [reported frequency and inte |