Journal of Rehabil itation Research & Development Comparison of the Easy Strutter Functional Orthosis System™ and axillary crutches during modified 3-point gait

(ESFOS) was designed to improve assistive device ambulatory efficiency. This crossover design study compared the ESFOS to axillary crutches during modified 3-point gait. Thirty-eight subjects (40–65 years of age) at> 1 year after unilateral total knee or hip replacement participated in this study. Heart rate, mean peak palmar and plantar force magnitude, and onset tim-ing were monitored during self-directed pace ambulation. Between trials, subjects responded to questions on perceived exertion, stability/security, and comfort. One-way analyses of variance were used to evaluate condition differences for ratio or interval data (p ≤ 0.01). Statistically significant differences were noted for mean peak palmar forces (reduced 45 % and delayed 31%), mean peak plantar force onsets (delayed 30%), and energy expenditure index (EEI) (reduced 25%). Wilcoxon signed rank tests were used to evaluate condition difference