Article

OBJECTIVE: To investigate the changes in muscle oxygen consumption (mV O2) using
near-infrared spectroscopy (NIRS) after 4 weeks of training with functional
electrical stimulation (FES) cycling in nonambulatory people with multiple
sclerosis (MS). DESIGN: Four-week before-after trial to assess changes in mV O2
after an FES cycling intervention. SETTING: Rehabilitation hospital.
PARTICIPANTS: People (N=8; 7 men, 1 women) from a volunteer/referred sample with
moderate to severe MS (Expanded Disability Status Scale score>6.0). INTERVENTION: Participants cycled 30 minutes per session, 3d/wk for 4 weeks or a total of 12
sessions. MAIN OUTCOME MEASURES: mV O2 of the right vastus lateralis muscle was
measured with NIRS before and within 1 week after the intervention. Six bouts of
15-second electrical stimulation increasing from 2 to 7Hz were used to activate
the muscle. mV O2 was assessed by analyzing the slope of the NIRS oxygen signal
during a 10-second arterial occlusion after each electrical stimulation bout.
RESULTS: Significant FES training by electrical stimulation frequency level
interaction was observed (P=.031), with an average increase in mV O2 of 47%
across frequencies with a main effect of training (P=.047). CONCLUSIONS: FES
cycling for 4 weeks improved mV O2, suggesting that FES cycling is a potential
therapy for improving muscle health in people with MS who are nonambulatory.
CI - Copyright (c) 2015 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS