Evolution of Pulsed Oxygen Saturation During Interval Training Compared to Continuous Training in COPD Patients

Groupe Hospitalier du Havre12 enrolled

Overview

A problem often observed during exercise training is oxygen desaturation exclusively during exercise in some patients. In the case of exercise-induced desaturation, it may be suggested to train these patients in interval training to limit exercise-induced desaturation. Interval training consists of alternating active phases of short duration (often 30 seconds to 1 minute) followed by a short active or passive recovery phase of equivalent duration to the previous phase. Investigators therefore hypothesise that interval training on a cycloergometer or treadmill can limit exercise-induced desaturation in COPD patients. The aim of the study is to observe the evolution of pulsed oxygen saturation between a continuous training session and a interval training session.

Study Type

OBSERVATIONAL

Enrollment

Conditions

COPD Exercise Pulmonary Rehabilitation Desaturation of Blood

Interventions

Interval training sessionOTHER

Interval training consists of a 5-minute warm-up, a 5-minute cool-down and 20 minutes of alternating 60 seconds of high-intensity work (100% of the maximum power recorded in the incremental test that was carried out when the patient was admitted to the pulmonary rehabilitation department) and 60 seconds of unloaded pedalling or rest.

Eligibility

Sex: ALL

Medical Language ↔ Plain English

Inclusion Criteria: * a diagnosis of COPD * participating in a pulmonary rehabilitation programme * with an exercise-induced desaturation less than 90% * no oxygen supplementation Exclusion Criteria: * Under 18 years of age * Pregnant woman * Person not affiliated to a health insurance regime or not benefiting from a social security regime * Patient under curatorship, guardianship or safeguard of justice * Patient speaking a language other than French * Patient with severe hypoxaemia (SpO2 ≤ 80%) during exercise * Patient having had a moderate or severe exacerbation (hospitalisation for respiratory reasons) in the previous 4 weeks * Patients with orthopaedic, rheumatic, vascular or neurological pathology limiting their ability to make an effort * Breastfeeding women

Outcomes

Primary Outcomes

Difference in oxygen pulsed saturation

Difference in minimum saturation during both exercise, the measurement will be performed with a pulse oximeter (Spirodoc, MIR)

Time frame: One week

Secondary Outcomes

Difference in oxygen pulsed saturation

Difference in mean pulsed oxygen saturation and the time spent with a pulsed oxygen saturation below 90% during the two training sessions. The measurement will be performed with a pulse oximeter (Spirodoc, MIR)

Time frame: One week

Difference in peripheral muscle oxygenation

Muscle oxygenation (arbitrary unit) will be evaluated using Near-infrared spectroscopy technology. the measurement will be performed with a Near Infrared spectroscopy (Portamon, Artinis Medical Systems)

Time frame: One week

Difference in respiratory rate

Difference in respiratory rate will be measured breath-by-breath using a portable spirometer (Spirodoc, MIR)

Time frame: One week

Difference in tidal volume

Difference in tidal volume will be measured breath-by-breath using a portable spirometer (Spirodoc, MIR)

Time frame: One week

Difference in inspiratory capacity

Difference in inspiratory capacity will be measured using a portable spirometer (Spirodoc, MIR)

Time frame: One week

Difference in Dyspnea

Dyspnea peak during exercise using the modified Borg scale 0-10, 0 no dyspnea, 10 maximal dyspnea

Time frame: One week

Difference in muscle discomfort

Muscle discomfort peak during exercise using the modified Borg scale 0-10, 0 no dyspnea, 10 maximal dyspnea

Time frame: One week

Evolution of Pulsed Oxygen Saturation During Interval Training Compared to Continuous Training in COPD Patients

Overview

Conditions

Interventions

Eligibility

Locations (1)

Outcomes

Primary Outcomes

Secondary Outcomes