External Powered Orthoses for Paraplegic Subjects: A Meta Analysis Review

Karimi, Mohammad Taghi; Esrafilian, Amir

doi:10.5402/2012/915285

Cited by 4 publications

(1 citation statement)

References 26 publications

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“…For people with SCI who are usually condemned to the use of a wheelchair for mobility, a recent development that can let them walk again is a wearable exoskeleton. Standing and walking will not only have positive psychological effects for the users, but also physiological effects like reductions in bone loss, pressure sores and an improved cardiovascular system response [1].…”

Section: Introductionmentioning

confidence: 99%

Vibrotactile feedback to control the amount of weight shift during walking — A first step towards better control of an exoskeleton for spinal cord injury subjects

Muijzer-Witteveen

Nataletti

Agnello

et al. 2017

2017 International Conference on Rehabilitation Robotics (ICORR)

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People with Spinal Cord Injury do not only lack the ability to control their muscles, but also miss the sensory information from below the level of their lesion. Therefore, it may become difficult for them to perceive the state of the body during walking, which is however often used to control wearable exoskeletons. In the present study the possibilities of providing vibrotactile feedback about the Center of Mass (CoM) during walking were investigated. The results showed that healthy subjects could successfully interpret the provided vibrotactile cues and change their walking pattern accordingly. Vibrotactile stimulation was either provided in a concurrent (over the complete CoM movement) or terminal (only when the desired CoM displacement was reached) way. The latter led to a better accuracy and can be easily implemented in a wearable exoskeleton where a certain amount of CoM displacement is needed to initiate stepping.

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Section: Introductionmentioning

confidence: 99%

Vibrotactile feedback to control the amount of weight shift during walking — A first step towards better control of an exoskeleton for spinal cord injury subjects

Muijzer-Witteveen

Nataletti

Agnello

et al. 2017

2017 International Conference on Rehabilitation Robotics (ICORR)

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Is a four-limb exoskeleton a step in the wrong direction?

Shakespeare

Watson

2019

The Lancet Neurology

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Wearable Power-Assist Locomotor (WPAL) for supporting upright walking in persons with paraplegia

Tanabe

Hirano

Saitoh

2013

NRE

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BACKGROUND: Due to physical and psychosocial issues associated with long-term sitting in a wheelchair, devising new ways to facilitate upright mobility is a key issue in rehabilitation medicine. Wearable Power-Assist Locomotor (WPAL) is a motorized orthosis and is developed for providing independent and comfortable walking for paraplegic patients. METHODS:The WPAL consists of a wearable robotic orthosis and custom walker. To facilitate alternate usage with a wheelchair, the wearable robotic orthosis is based on a medial system with motors located at the bilateral hip, knee and ankle joints to reduce the increase in heart rate during gait. The gait parameters include stride length, toe clearance height, swing time, double support time, etc. (gait speed: up to 1.3 km/h). Independent gait with the walker can be learned through a five-stage gait exercise sequence. The first two stages are stepping and gait exercises with parallel bars. The third stage is gait exercise on treadmill. The subsequent two stages are gait exercise with walker. RESULTS: Seven motor-complete paraplegic patients (spinal cord functional levels: T6-T12) participated. Through a series of exercises, all users achieved independent gait on a level floor (Functional Ambulation Categories: 4). The mean duration and distance of consecutively walking were 14.1 ± 11.4 minutes and 165.6 ± 202.6 m, respectively. The most competent user was able to walk continuously for as long as 40 minutes and 640 m whereas only for 6 minutes and 107 m with a conventional orthosis. CONCLUSIONS: These results suggest that WPAL might be useful device for supporting upright walking in persons with paraplegia.

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External Powered Orthoses for Paraplegic Subjects: A Meta Analysis Review

Cited by 4 publications

References 26 publications

Vibrotactile feedback to control the amount of weight shift during walking — A first step towards better control of an exoskeleton for spinal cord injury subjects

Vibrotactile feedback to control the amount of weight shift during walking — A first step towards better control of an exoskeleton for spinal cord injury subjects

Is a four-limb exoskeleton a step in the wrong direction?

Wearable Power-Assist Locomotor (WPAL) for supporting upright walking in persons with paraplegia

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