Patients with coronary artery disease, treated with percutaneous coronary intervention or coronary artery bypass grafting. Circulatory System Coronary artery disease
Conditions
Interventions
Every patient was requested to perform a cycling route (of 10 km) in Hasselt (Belgium). Patients performed the cycling route 3 times.
The first time, a classical bicycle was used. The
Sponsors
Heart Center Hasselt
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Coronary artery disease patients, treated with percutaneous coronary intervention or coronary artery bypass grafting 2. Patients should have completed phase II of cardiac rehabilitation 3. Absence of severe pulmonary and/or renal disease 4. Absence of neurological and/or orthopedic disease (that would limit the patient's possibility to cycle) 5. Absence of pacemaker 6. Gender: both male and female 7. Age: between 50-75 years old 8. Signed informed consent
Exclusion criteria
Exclusion criteria: 1. Presence of severe pulmonary and/or renal disease 2. Presence of neurological and/or orthopedic disease (that would limit the patient's possibility to cycle) 3. Presence of pacemaker 4. Age: 75 years old
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| VO2, assessed by ergospirometry (Oxycon mobile device) during whole cycling sessions. VO2 was recorded during all cycling sessions. | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. VCO2, assessed by ergospirometry (Oxycon mobile device) during whole cycling sessions 2. RER, assessed by ergospirometry (Oxycon mobile device) during whole cycling sessions 3. VE, assessed by ergospirometry (Oxycon mobile device) during whole cycling sessions 4. Time of cycling sessions, recorded by stopwatch 5. Perceived exertion, assessed twice at predefined parcours locations with Borg scale Kcal, deduced from VO2 and total time of cycling sessions VCO2, RER, VE, perceived exertion (Borg scale) were recorded during all cycling sessions. VO2 or oxygen consumption - VO2 is defined as the volume of O2 extracted from inspired air in a given period of time. VCO2 or carbon dioxide output - VCO2 is defined as the amount of CO2 exhaled from the body per unit of time. RER or respiratory exchange ratio - RER is defined as : RER= VCO2/VO2. The RER is determined by the fuels used for metabolism. RER is 1 for carbohydrates; RER is 0,7 for lipids and RER is 0,85 for carbohydrates and lipids. VE or minute ventilation - VE is the volume of expired air exhaled from the lungs in 1 minute. | — |
Countries
Belgium
Outcome results
None listed