Abstract T P106: Sedentary Time During the Acute Hospital Stay is Associated With Functional Performance
Purpose: A few studies have been conducted during in-patient rehabilitation to describe physical activity (PA) levels. Most have been observational and conducted at various time intervals during the day. These studies have shown that during in-patient rehabilitation, stroke survivors participate in minimal therapy as well as spend the majority of their day sedentary. To our knowledge no studies have characterized PA during the acute hospital stay. The purpose of this study was to objectively assess PA levels using tri-axial accelerometers during the acute hospital stay. We will determine whether the duration of sedentary bouts are associated with functional performance at discharge. We hypothesized that shorter bouts of sedentary time will moderately associated with greater performance on walking and functional ability at discharge.
Methods: Twenty-nine individuals (14 males; average age of 59.17 ± 11.6 years) were enrolled into the study within 48 hours of hospital admission with acute stroke. Tri-axial accelerometers were placed bilaterally on the ankles to monitor activity 24 hours per day. Functional assessments were conducted at baseline and prior to discharge. Walking was assessed using the Timed-Up and Go (TUG) and Six Minute Walk Test (6MWT). Activities of daily living (ADLs) were assessed using the Physical Performance Test (PPT).
Results: During the acute hospital stay, the average percent time spent in sedentary, light, moderate and vigorous activities was 94.8 ± 3.2%, 4.4 ± 2.1%, 0.5 ± 0.5%, and 0.1 ± 0.3%, respectively. For individuals with functional testing at baseline and discharge (n = 17), average length of sedentary bouts per day was significantly related to 6MWT (r = -0.61, p < 0.006) and PPT (r = -0.76, p < 0.001) at discharge, but not TUG (r = 0.24, p < 0.37) even when controlling for baseline performance.
Conclusion: Stroke patients spend the majority of the stroke hospital stay sedentary. Stroke patients who had shorter bouts of sedentary time during the hospital stay showed greater performance in the 6-MWT and PPT. Acute stroke patients would benefit from decreasing sedentary time during the acute hospital stay.
Author Disclosures: A. Mattlage: Research Grant; Significant; NIH T32 Pre-doctoral training grant. S. Karcher: None. J. Sisante: Research Grant; Significant; NIH T32 Pre-doctoral training grant. A. Lentz: None. M. Rippee: None. M. Abraham: None. S. Billinger: Research Grant; Significant; NIH K01 training grant.
- © 2014 by American Heart Association, Inc.