Effects of the ankle angle of an ankle foot orthosis on foot pressure during
the gait in healthy adults |
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| Authors: | Jong-Sung Chang Hae-Yong Lee Myoung-Kwon Kim |
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| Affiliation: | 1) Department of Physical Therapy, Yeungnam University College, Republic of Korea;2) Department of Physical Therapy, College of Rehabilitation Science, Daegu University, Republic of Korea;3) Department of Physical Therapy, College of Rehabilitation Science, Daegu University: 201 Daegudae-ro, Gyeongsan-si, Gyeongsangbuk-do, Republic of Korea |
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| Abstract: | [Purpose] The purpose of this study was to investigate the effects of the ankle angle ofan ankle foot orthosis (AFO) on foot pressure during the gait in healthy adults.[Subjects] Sixteen healthy males with neither orthopedic nor neurological problemsparticipated in this study. [Methods] Subjects walked on a walkway at a self-selected pacewith an AFO set at four different ankle angles (−5°, 0°, 5°, and 10°). Foot pressure wasmeasured randomly according to the ankle angle of the AFO using an F-scan system. Threetrials were measured and averaged for data analysis. [Results] The peak foot pressure ofthe hallux, 2nd–5th toes, 2nd and 3rd metatarsal heads, 4th and 5th metatarsal heads, andthe heel showed significant differences among the AFO ankle angles: angles of 0° and −5°increased the foot pressure of the lateral legions, and the peak foot pressure of the heelat an AFO ankle angle of 10° was significantly greater than those of the other angles.[Conclusion] The ankle angle of the AFO affected foot pressure and gait patterns duringgait. The results suggest that the appropriate angle for an AFO is between 5° and 10° whenAFOs are prescribed by clinicians.Key words: Ankle foot orthosis, Ankle angle, Gait |
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