Year: 2025
Type: article
Abstract: Objective: To investigate the effects of olfactory stimulation with menthol on exertional dyspnea and physiological data during cycling exercise in patients with chronic obstructive pulmonary disease (COPD). Design: Controlled trial. Patients with COPD hospitalized for pulmonary rehabilitation performed endurance exercise training using a cycle ergometer and resistance training with and without menthol to decrease respiratory sensations. Setting: Three exercise sessions on a cycle ergometer. Participants: Twenty-one adult patients (N=21; women; mean age ± SD, 64±8y; Global Initiative for Chronic Obstructive Lung Disease (GOLD) score IV) referred for pulmonary rehabilitation with functional chronic dyspnea (rated ≥2 on the modified Medical Research Council scale) were included. Interventions: Session 1 without menthol, session 2 with menthol, and session 3 without menthol. Main Outcome Measures: The primary evaluation criterion was the maximum dyspnea experienced during the sessions on a cycle ergometer. Several parameters were recorded and analyzed, including oxygen saturation, heart rate, muscle fatigue (assessed using the modified Borg scale), and dyspnea, as well as the duration of exercise, power output, and distance covered on the cycle ergometer. After completing the sessions, patients were asked about their preference regarding the use of menthol (with or without). Results: =.04). No significant differences were found in the other parameters, even with the MDP questionnaire. Conclusions: Menthol could be an adjuvant to exercise rehabilitation, improving exercise-induced dyspnea in patients with chronic dyspnea, particularly in patients with high oxygen flow during exercise.
Language: English
Subfield: Pulmonary and Respiratory Medicine
Field: Medicine
Domain: Health Sciences
Open Access status: gold
Estimated APC paid: $2,500
OpenAlex ID: W4411196853