This article and any supplementary material should be cited as follows: Gorgey AS, Poarch HJ, Dolbow DR, Castillo T, Gater DR. Effect of adjusting pulse durations of functional electrical stimulation cycling on energy expenditure and fatigue after spinal cord injury. J Rehabil Res Dev. 2014;51(9):1455–68. Slideshow Project DOI: /JRRD JSP 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
This article and any supplementary material should be cited as follows: Gorgey AS, Poarch HJ, Dolbow DR, Castillo T, Gater DR. Effect of adjusting pulse durations of functional electrical stimulation cycling on energy expenditure and fatigue after spinal cord injury. J Rehabil Res Dev. 2014;51(9):1455–68. Slideshow Project DOI: /JRRD JSP Aim – Determine effects of different pulse durations on oxygen uptake (VO 2 ), 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.
This article and any supplementary material should be cited as follows: Gorgey AS, Poarch HJ, Dolbow DR, Castillo T, Gater DR. Effect of adjusting pulse durations of functional electrical stimulation cycling on energy expenditure and fatigue after spinal cord injury. J Rehabil Res Dev. 2014;51(9):1455–68. Slideshow Project DOI: /JRRD JSP 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.
This article and any supplementary material should be cited as follows: Gorgey AS, Poarch HJ, Dolbow DR, Castillo T, Gater DR. Effect of adjusting pulse durations of functional electrical stimulation cycling on energy expenditure and fatigue after spinal cord injury. J Rehabil Res Dev. 2014;51(9):1455–68. Slideshow Project DOI: /JRRD JSP Results Relative VO 2 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.
This article and any supplementary material should be cited as follows: Gorgey AS, Poarch HJ, Dolbow DR, Castillo T, Gater DR. Effect of adjusting pulse durations of functional electrical stimulation cycling on energy expenditure and fatigue after spinal cord injury. J Rehabil Res Dev. 2014;51(9):1455–68. Slideshow Project DOI: /JRRD JSP Conclusion Lengthening pulse duration did not affect submaximal or relative VO 2 or EE, total EE, and time to fatigue. Greater recovery VO 2 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.