Energy cost of the case Western reserve standing neuroprosthesis

Arch Phys Med Rehabil. 2007 Aug;88(8):1074-6. doi: 10.1016/j.apmr.2007.05.011.

Abstract

Objective: To determine the oxygen consumption of a person with C7 American Spinal Injury Association (ASIA) grade B tetraplegia using the Case Western Reserve/Veterans Administration (CWRU/VA) standing neuroprosthesis.

Design: Measure the oxygen consumption and carbon dioxide production of a person with C7 ASIA grade B tetraplegia at rest, standing in the parallel bars with the CWRU/VA system on, ambulating in the parallel bars, and transferring from a wheelchair to a mat with the system on.

Setting: University medical center.

Participant: A 26-year-old man with C7 ASIA grade B tetraplegia. The subject was a recipient of the CWRU/VA standing neuroprosthesis.

Interventions: Not applicable.

Main outcome measures: Measurement of oxygen consumption and carbon dioxide production using a metabolic cart.

Results: Oxygen consumption of the subject was 1.22mL.kg(-1).min(-1) at rest. It was 4.7mL.kg(-1).min(-1) while standing in the parallel bars, 7.2mL.kg(-1).min(-1) while ambulating in the parallel bars, and 7.9mL.kg(-1).min(-1) when transferring from a wheelchair to a mat.

Conclusions: Oxygen consumption of the subject when using the system is about 2 metabolic equivalent units, which is compatible with sustained use of the system for standing.

Publication types

  • Case Reports
  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Activities of Daily Living
  • Adult
  • Carbon Dioxide / metabolism
  • Electric Stimulation Therapy
  • Electrodes, Implanted
  • Energy Metabolism / physiology*
  • Humans
  • Male
  • Muscle, Skeletal / metabolism
  • Oxygen Consumption / physiology
  • Quadriplegia / etiology
  • Quadriplegia / metabolism
  • Quadriplegia / rehabilitation*
  • Spinal Cord Injuries / complications
  • Spinal Cord Injuries / metabolism
  • Spinal Cord Injuries / rehabilitation
  • Therapy, Computer-Assisted

Substances

  • Carbon Dioxide