1 / 5

Aim

Effect of adjusting pulse durations of functional electrical stimulation cycling on energy expenditure and fatigue after spinal cord injury. Ashraf S. Gorgey, MPT, PhD, FACSM; Hunter J. Poarch, BS; David R. Dolbow, DPT, PhD; Teodoro Castillo, MD; David R. Gater, MD, PhD. Aim

elsier
Download Presentation

Aim

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Effect of adjusting pulse durations of functional electrical stimulation cycling on energy expenditure and fatigue after spinal cord injury Ashraf S. Gorgey, MPT, PhD, FACSM; Hunter J. Poarch, BS; David R. Dolbow, DPT, PhD; Teodoro Castillo, MD; David R. Gater, MD, PhD

  2. Aim • Determine effects of different pulse durations on oxygen uptake (VO2), cycling performance, and energy expenditure (EE) of knee extensor muscles after cycling in persons with spinal cord injury (SCI). • Relevance • Will provide clinical basis for adjusting and manipulating functional electrical stimulation (FES) parameters to enhance performance and EE and minimize fatigue.

  3. Method • Repeated-measures design using FES cycle ergometer over 3 wk. • Convenience sample: • 10 individuals with motor complete SCI. • 3 different pulse durations: • 200, 350, and 500 s (P200, P350, and P500, respectively). • Measured immediately and 48–72 h after cycling.

  4. Results • Relative VO2 or cycling EE: • No difference among 3 FES protocols. • Delta EE between exercise and rest: • 42% greater in P500 and P350 compared with P200. • Muscle fatigue: • No difference among the three FES protocols. • Knee extensor torque: • Significant decreases immediately after and 48–72 h after FES leg cycling.

  5. Conclusion • Lengthening pulse duration did not affect submaximal or relative VO2 or EE, total EE, and time to fatigue. • Greater recovery VO2 and delta EE were noted in P350 and P500 compared with P200. • Acute bout of FES leg cycling resulted in torque reduction that did not fully recover 48–72 h after cycle.

More Related