1. Metabolic, ventilatory and cardiovascular responses to FES-cycling: A comparison to NMES and passive cycling
- Author
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Luis Augusto Werlang, Cássio Azevedo, Adelar Kunz, Murillo Frazão, and Maikel Peltz
- Subjects
medicine.medical_specialty ,Cardiac output ,Contraction (grammar) ,Biomedical Engineering ,Biophysics ,Electric Stimulation Therapy ,Health Informatics ,Bioengineering ,Stimulation ,Biomaterials ,Internal medicine ,medicine ,Humans ,Functional electrical stimulation ,Retrospective Studies ,business.industry ,Large effect size ,Oxygen uptake ,Bicycling ,Exercise Therapy ,Oxygen ,Cardiology ,Cycling ,business ,Respiratory minute volume ,Information Systems - Abstract
BACKGROUND: Cyclergometry with functional electrical stimulation (FES-cycling) is a feasible method for rehabilitation. The concept is to promote exercise induced by depolarization of the motoneuron and muscular contraction. OBJECTIVE: To measure acute physiological responses to FES-cycling. METHODS: Retrospective study of data from ten healthy volunteers who performed FES-cycling, passive cycling and neuromuscular electrical stimulation (NMES) alone. Metabolic, ventilatory and cardiovascular parameters were analyzed. RESULTS: Oxygen uptake enhanced 97 ± 15% during FES-cycling, with medium effect size compared to NMES and large effect size compared to passive cycling. Energy expenditure enhanced 102 ± 15% during FES-cycling, with medium effect size compared to NMES and large effect size compared to passive cycling. Minute ventilation enhanced 115 ± 26% during FES-cycling, with small effect size compared to NMES and medium effect size compared to passive cycling. Cardiac output enhanced 21 ± 4% during FES-cycling, with medium effect size compared to NMES and passive cycling. Arterial – mixed venous oxygen content difference enhanced 60 ± 8% during FES-cycling, with a medium effect size compared to NMES and large effect size compared to passive cycling. CONCLUSIONS: FES-cycling enhances metabolic, ventilatory and cardiovascular demands and the physiological responses are higher than NMES and passive cycling.
- Published
- 2022