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Measuring activity levels at an acute stroke ward: comparing observations to a device
Sharon F Kramer1, Toby Cumming, Leonid Churilov
1Stroke Division, Florey Neuroscience Institute, 245 Burgundy Street, Heidelberg, Melbourne, VIC 3084, Australia ; School of Physiotherapy, La Trobe University, Melbourne, VIC 3086, Australia.
Biomed Research International
|November 28, 2013
Summary
A new device using a dual-axis accelerometer accurately measures physical activity in acute stroke patients. This technology offers a valid method for therapists to monitor patient progress and activity levels early after stroke.
Area of Science:
- Rehabilitation Medicine
- Biomedical Engineering
- Stroke Recovery
Background:
- Early monitoring of physical activity is crucial for stroke rehabilitation.
- Current methods like behavioral mapping are resource-intensive.
- Instrumented monitoring could provide objective activity data.
Purpose of the Study:
- To validate a dual-axis accelerometer device for measuring physical activity in acute stroke.
- To compare accelerometer data with traditional behavioral mapping.
Main Methods:
- Twenty acute stroke patients (≤2 weeks post-stroke, >18 years) were monitored.
- A dual-axis accelerometer was attached to the unaffected leg.
- Simultaneous behavioral mapping (observation) was conducted from 8 a.m. to 5 p.m.
Main Results:
- The accelerometer recorded median times: 36% lying, 51% sitting, 2% upright.
- Substantial agreement was found between the device and behavioral mapping (ICC values ranging from 0.68 to 0.74).
Conclusions:
- Stroke patients exhibit significant inactivity in acute settings.
- The accelerometer device provides valid estimates of time spent lying, sitting, and upright in acute stroke.
- This technology can aid therapists in assessing activity and progress.
