Article

This study aimed at verifying the safety and effects of electrical stimulation
ventilatory feedback (ESVF) to provide feedback during expiration, which may
assist with breathing control in patients with chronic obstructive pulmonary
disease (COPD). Because this is a new therapy, we examined the feasibility of the
therapy in healthy adults. The 23 healthy adult participants were randomized into
two groups: a stimulation group that received ESVF and a placebo group with the
ESVF device attached, but not activated. Sensory stimulation was provided at a
frequency of 20 Hz and pulse duration of 200 mus. During breathing training,
participants practiced a prolonged expiration pattern and were instructed to
maintain the breathing pattern during exercise. A variety of parameters such as
respiratory time from the gas analyzer monitor and quantitative load were
measured during lower-extremity cycle ergometer exercise.
The primary outcome was
the expiratory to inspiratory time ratio, which was significantly higher in the
stimulation group than in the placebo group, both during and after exercise. No
side effects were reported during the use of electrical stimulation. Therefore,
ESVF is safe and facilitates maintenance of a prolonged expiration pattern during
and after exercise.

Langue : ANGLAIS