Immobilization contribute to iatrogenic decline in hospitalized older adult. Implementing physical activity (PA) seems to be one of the best and easy solution. However, PA interventions are poorly integrated into usual care and those available are either non-specific, need supervision or requested human/material resources. Thus, we aimed to assess the effect of a pragmatic, unsupervised, and specific PA program (SPRINT) on health care practice and functional capacities in hospitalized older patients. Design: Single arm interventional pragmatic pilot study.

Geriatric Assessment Unit (GAU).

Of the 39 patients (> 65 years) hospitalized in a GAU and eligible, 19 agreed to participate (AP) and 20 declined (N-AP).

One of the 4 PA programs, developed by our team, was allocated according to mobility profile. Individual functional capacities (i.e. balance, walking speed, functional mobility profile (PFMP)), active time (METS> 1.5: min), length of hospitalization (LOS), discharge orientation were assessed at admission and discharge of GAU.

Baseline characteristics of the 2 groups were comparable. At discharge, the AP group improved more on walking speed (0.57 ± 0.21 vs. 0.64 ± 0.19; p = 0.013), Berg balance scale (41.8 ± 13.7 vs. 45.1 ± 9.7; p = 0.017) and PFMP (54.0 ± 7.1 vs 55.1 ± 5.5; p = 0.042) than the N-AP group. The LOS was significantly shorter in AP group compared to the N-AP group (5 vs. 36 days; p = 0.026) and more subjects in the AP group were oriented at home without health or social services (89.5 vs. 60%; p=0.065).

SPRINT appears effective to counteract iatrogenic decline and decreased the LOS. Moreover, this simple pragmatic PA tool seems to improve the life trajectory and healthcare practice in aging population. Further researches are needed to confirm these promising pragmatic results.