Hybrid functional electrical stimulation for energy-efficient restoration of standing-up motion

Seiya Miyamoto, Yoichi Shimada, Kozo Sato, Hitoshi Kagaya, Toshiki Matsunaga, Goro Obinata

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Objective: To find the most energy-efficient standing-up motion for quadriceps and to restore that motion in a person with complete paraplegia by using hybrid functional electrical stimulation. Design: Nonrandomized control trial. Setting: A referral center and institutional practice providing outpatient care. Participants: Twenty-nine volunteer samples were used to collect normal data. One patient with complete paraplegia received treatment for the restoration of standing-up motion. Main Outcome Measurements: Joint angles and ground reaction forces were investigated during the standing-up motion with arms crossed in front of the chest with an ankle-foot orthosis set at various angles. The electromyogram (EMG) was performed during the standing-up motion with and without the orthosis. The energy costs of quadriceps during the standing-up motion were calculated using a mathematical model. Standing-up motion in a person with complete paraplegia was restored and then analyzed by measuring the vertical ground reaction force and the hip and knee angles. Results: Quadriceps energy cost was lowest (p < .05) in subjects wearing the ankle-foot orthosis set at neutral with a flat sole line. In the integrated EMG the peak value of rectus femoris contraction was larger with the orthosis than without it (p < .05). A patient with complete paraplegia was able to stand up smoothly from a wheelchair based on stimulation patterns obtained from healthy subjects. Conclusions: Energy- efficient standing-up motion in a patient with complete paraplegia was restored when the patient used an ankle-foot orthosis set at neutral with a flat sole line.

Original languageEnglish
Pages (from-to)40-47
Number of pages8
JournalArchives of Physical Medicine and Rehabilitation
Volume80
Issue number1
DOIs
Publication statusPublished - 01-01-1999

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Electric Stimulation
Paraplegia
Foot Orthoses
Ankle
Orthotic Devices
Electromyography
Institutional Practice
Costs and Cost Analysis
Wheelchairs
Quadriceps Muscle
Ambulatory Care
Hip
Volunteers
Knee
Healthy Volunteers
Arm
Theoretical Models
Thorax
Referral and Consultation
Joints

All Science Journal Classification (ASJC) codes

  • Physical Therapy, Sports Therapy and Rehabilitation
  • Rehabilitation

Cite this

Miyamoto, Seiya ; Shimada, Yoichi ; Sato, Kozo ; Kagaya, Hitoshi ; Matsunaga, Toshiki ; Obinata, Goro. / Hybrid functional electrical stimulation for energy-efficient restoration of standing-up motion. In: Archives of Physical Medicine and Rehabilitation. 1999 ; Vol. 80, No. 1. pp. 40-47.
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Hybrid functional electrical stimulation for energy-efficient restoration of standing-up motion. / Miyamoto, Seiya; Shimada, Yoichi; Sato, Kozo; Kagaya, Hitoshi; Matsunaga, Toshiki; Obinata, Goro.

In: Archives of Physical Medicine and Rehabilitation, Vol. 80, No. 1, 01.01.1999, p. 40-47.

Research output: Contribution to journalArticle

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