||AN EMG AND FORCE COMPARISON
FOR WALKING WITH CRUTCHES
ERGONOMICALLY DESIGNED WALKER
Researchers at Syracuse University compared participants' leg muscle activity using both axillary crutches and the ED Walker. Utilizing electromyography (EMG), the researchers measured the amount of muscle activity under three weight-bearing conditions (unloaded, light, and heavy) for each device.
Muscle activity significantly differed across the conditions. In particular, activity in the soleus and vastus lateralis muscles declined in the assisted walking phase. However, individuals using the ED Walker had a greater range of vastus lateralis muscle activity than when using crutches.
As a result, the ED Walker allowed participants to selectively weight-bear and it also increased muscle activity in the legs compared to traditional crutches. This may lead to decreased muscle atrophy and shorten recovery times for those who employ the ED Walker.
For more information on this study, please click on the link below to refer to the full, published article:
BC Clark, TM Manini, NR Ordway and LL Ploutz-Snyder.
Leg muscle activity during walking with assistive devices
at varying levels of weight-bearing.
Archives of Physical Medicine and
Volume 85, Issue 9, September 2004, Pages 1555-1560.