Anterior ankle-foot orthosis effects on postural stability in hemiplegic patients

Chen, Chiung-Ling; Yeung, Kwok-Tak; Wang, Chun-Hou; Chu, Hsu-Tung; Yeh, Chen‐Yu

doi:10.1016/s0003-9993(99)90335-0

Cited by 85 publications

(72 citation statements)

References 16 publications

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“…Previous studies (Lehmann 1979;Lehmann et al 1983;Mojica et al 1988;Chen et al 1999;Tyson and Thornton 2001;Gok et al 2003) have shown that wearing of PAFO increases walking speed, cadence, and stride length and improves FAC of subjects. These findings were confirmed in the present study.…”

Section: Discussionmentioning

confidence: 93%

“…With a PAFO, the center of foot pressure shifted to the mid-position and body sway decreased. Accordingly, PAFO clearly improves the static balance of standing hemiplegic patients (Mojica et al 1988;Chen et al 1999). However, the effect of PAFO on gait stability in hemiplegic patients has not been clarified.…”

mentioning

confidence: 98%

“…Yet regaining the ability to walk is a major goal during rehabilitation of stroke patients. Ankle-foot orthosis (AFO) is frequently prescribed for hemiplegic patients to correct ankle joint alignment, increase walking speed, and reduce energy expenditure during ambulation (Corcoran et al 1970;Lehmann 1979;Lehmann et al 1983;Mojica et al 1988;Chen et al 1999;Hesse et al 1999;Tyson and Thornton 2001;Gok et al 2003). Various AFO designs make use of metal as well as plastic materials.…”

mentioning

confidence: 99%

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Improving Gait Stability in Stroke Hemiplegic Patients with a Plastic Ankle-Foot Orthosis

Abe

Michimata

Sugawara

et al. 2009

Tohoku J. Exp. Med.

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Section: Discussionmentioning

confidence: 93%

mentioning

confidence: 98%

mentioning

confidence: 99%

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Improving Gait Stability in Stroke Hemiplegic Patients with a Plastic Ankle-Foot Orthosis

Abe

Michimata

Sugawara

et al. 2009

Tohoku J. Exp. Med.

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“…We focused on changes in energy cost of walking and walking speed as the two main functional outcome measures. However, an AFO may also have other beneficial effects, such as an increase in stability [28][29][30], standing upright [28], or control of the consequences of spasticity [31]. However, the baseline characteristics of our study population indicate good balance and a limited presence of spasticity.…”

Section: Discussionmentioning

confidence: 95%

Spring-like Ankle Foot Orthoses reduce the energy cost of walking by taking over ankle work

et al. 2012

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In patients with central neurological disorders, gait is often limited by a reduced ability to push off with the ankle. To overcome this reduced ankle push-off, energy-storing, spring-like carbon-composite Ankle Foot Orthoses (AFO) can be prescribed. It is expected that the energy returned by the AFO in late stance will support ankle push-off, and reduce the energy cost of walking. In 10 patients with multiple sclerosis and stroke the energy cost of walking, 3D kinematics, joint power, and joint work were measured during gait, with and without the AFO. The mechanical characteristics of the AFO were measured separately, and used to calculate the contribution of the AFO to the ankle kinetics. We found a significant decrease of 9.8% in energy cost of walking when walking with the AFO. With the AFO, the range of motion of the ankle was reduced by 12.3°, and the net work around the ankle was reduced by 29%. The total net work in the affected leg remained unchanged. The AFO accounted for 60% of the positive ankle work, which reduced the total amount of work performed by the leg by 11.1% when walking with the AFO. The decrease in energy cost when walking with a spring-like energy-storing AFO in central neurological patients is not induced by an augmented net ankle push-off, but by the AFO partially taking over ankle work.

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“…Maeda et al [53] demonstrated that the use of a one-point cane can reduce the postural sway ('sway area') in patients with stroke more effectively than in healthy elderly. The use of an anterior ankle-foot orthosis (AFO), giving support to the ankle joint and the ventral side of the tibia, has been shown to increase the maximum weight loaded on the paretic leg from 54% to 61% in 24 patients in the chronic phase of stroke, without affecting postural stability [54]. Weighted garments probably have no effect on functional balance or gait in patients with stroke [55].…”

Section: Effects Of Aidsmentioning

confidence: 99%

A review of standing balance recovery from stroke

et al. 2005

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Anterior ankle-foot orthosis effects on postural stability in hemiplegic patients

Cited by 85 publications

References 16 publications

Improving Gait Stability in Stroke Hemiplegic Patients with a Plastic Ankle-Foot Orthosis

Improving Gait Stability in Stroke Hemiplegic Patients with a Plastic Ankle-Foot Orthosis

Spring-like Ankle Foot Orthoses reduce the energy cost of walking by taking over ankle work

A review of standing balance recovery from stroke

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