Factors affecting exercise program adherence in patients with acute hip fracture and impact on one-year survival

Abstract

Objective: To study the adherence of an Early Inpatient Exercise Program in patients with acute hip fracture, identify variables associated with its performance, and its association to one-year survival.

Methods: Observational longitudinal study of a cohort of 509 patients, admitted consecutively with a hip fracture in La Paz University Hospital (Madrid, Spain). Data included sociodemographic variables, pre-fracture physical functioning, cognitive impairment, comorbidities, measure of exercise adherence (pre-surgery exercise, post-surgery exercise, and rehabilitation sessions) and vital status at follow-up. One year after the fracture, either patients or relatives were contacted by telephone to ascertain their vital status. Data were analyzed using logistic regressions and multivariate Cox proportional hazards regression.

Results: Three quarters of patients (76.0%) were able to comply with the Early Inpatient Exercise Program. Factors associated with adherence were: living at home (Odds Ratio (OR)=3.39; 95% Confidence Interval (CI): 2.03, 5.64), absence of pre-fracture disability (OR=3.78; 95% CI: 2.21, 6.47), absence of pre-fracture cognitive impairment (OR=2.36; 95% CI: 1.36, 4.07) and comorbidities (OR=1.66; 95% CI: 1.03, 2.67). Early Inpatient Exercise Program adherence was associated with one-year survival (HR=1.62; 95% CI: 1.06, 2.49).

Conclusions: The adherence with an Early Inpatient Exercise Program is high and is associated with 1-year survival. It is important to make a stronger effort to encourage participation in Early Inpatient Exercise Program in the 24% currently non-compliant, and in those with cognitive and physical impairments.

Keywords: Exercise program; Hip fracture; Inpatient; Older adults; Survival.