http://www.ptproductsonline.com/news/2012-03-07_01.asp
While walking ability of individuals with chronic foot drop phase post-stroke has been found to be better with functional electrical stimulation (FES) of the peroneal nerve than without an orthotic device, evidence is conclusive as to whether peroneal FES is also better that ankle-foot orthosis (AFO) in this regard. A recent study, published in the March 2012 issue of Physical Therapy, aims to identify potential benefits of peroneal FES as opposed to an AFO with respect to the ability to negotiate a sudden obstacle.
Led by Roos van Swigchem, PT, MSc, from the department of rehabilitation at the Radboud University Nijmegen Medical Centre and Nijmegen Centre for Evidence-Based Practice, Nijmegen, the Netherlands, the research team fitted 24 community-dwelling people with stroke who regularly used polypropylene AFO with a transcutaneous FES device. The average age of the participants was 52.6 years.
After 2 weeks and 8 weeks, the researchers tested participants’ obstacle avoidance ability by asking them to avoid 30 obstacles suddenly dropped on a treadmill in front of the affect leg as the participants walked with either FES or AFO. The obstacle avoidance success rates were determined.
According to the results, success rates were higher with FES than with AFO, especially after adjustment for individual leg muscle strength. Participants with relatively low muscle strength were found to most likely benefit from FES in regards to obstacle avoidance ability.
The researchers conclude that peroneal FES seems to be superior to an AFO when it comes to obstacle avoidance ability in community-dwelling people with stroke. However, they note that further work is needed to determine whether the results may be generalized to other groups of people with stroke.
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