COPD, Desaturation of Blood, Exercise, Pulmonary Rehabilitation
Conditions
Keywords
COPD, Pulmonary rehabilitation, Interval training
Brief summary
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.
Interventions
OTHERContinuous training session
Continuous training consists of a 5 minute warm up, 5 minute cool down and 20 minutes of moderate intensity work. The workload is set at 60% of the patient's maximum power
OTHERInterval training session
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.
Sponsors
Groupe Hospitalier du Havre
Medrinal Clement
Combret Yann
Machefert Margaux
Study design
Observational model
CASE_CROSSOVER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Healthy volunteers
No
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
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Difference in oxygen pulsed saturation | One week | Difference in minimum saturation during both exercise, the measurement will be performed with a pulse oximeter (Spirodoc, MIR) |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Difference in oxygen pulsed saturation | One week | 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) |
| Difference in peripheral muscle oxygenation | One week | 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) |
| Difference in respiratory rate | One week | Difference in respiratory rate will be measured breath-by-breath using a portable spirometer (Spirodoc, MIR) |
| Difference in tidal volume | One week | Difference in tidal volume will be measured breath-by-breath using a portable spirometer (Spirodoc, MIR) |
| Difference in inspiratory capacity | One week | Difference in inspiratory capacity will be measured using a portable spirometer (Spirodoc, MIR) |
| Difference in Dyspnea | One week | Dyspnea peak during exercise using the modified Borg scale 0-10, 0 no dyspnea, 10 maximal dyspnea |
| Difference in muscle discomfort | One week | Muscle discomfort peak during exercise using the modified Borg scale 0-10, 0 no dyspnea, 10 maximal dyspnea |
Countries
France
Contacts
PRINCIPAL_INVESTIGATORGuillaume Prieur, PT, PhD
Groupe Hospitalier du Havre
Outcome results
None listed