Physical activity and sedentary behavior in middle-aged intensive care unit survivors discharged home: A systematic...

The purpose of this study was to review literature on physical activity and sedentary behavior of middle-aged adults post-discharge from the intensive care unit, with a particular focus on studies using wearable activity trackers.

Systematic review conducted using correlational, cohort, and intervention studies of physical activity and sedentary behavior of intensive care unit survivors' post-discharge. Literature in PubMed, Embase, and CINAHL was searched using keywords derived from patient status, activity, and activity monitoring. Two independent reviewers used the National Institutes of Health Quality Assessment Tool for Observational Cohort and Cross-Sectional Studies to assess quality of articles and potential biases in study design.

Physical activity and sedentary behavior assessed via wearable activity trackers.

Two hundred and fifty-six studies met inclusion criteria; six studies comprising 265 participants were retained. Outcomes varied widely and were not synthesized, but instead discussed individually. Average steps/day ranged from 1278 to 4958 and average minutes of activity ranged from 26 to 45 min/day. One study reported 12 hours and 17 min/day spent in sedentary activity and another reported 90 % of hospitalization was in sedentary behavior compared to 58 % post-discharge.

Few studies have examined physical activity and sedentary levels of middle-aged intensive care unit survivors wearing activity trackers. Findings are limited in generalizability, and no randomized controlled trials were included here. Eliciting support from clinical and post-discharge care teams to encourage activity and/or attend prescribed therapy or rehabilitation sessions is important.

Clinicians should emphasize the importance of physical activity throughout the day to decrease sedentary time during a hospital stay and to continue being active after discharge to home. Physical activity is valuable, even in short spurts, from hospital stay through discharge. Interventions to increase physical activity and decrease sedentary time are needed to improve intensive care unit survivor recovery and quality of life post-discharge.