Estimating Peak Oxygen Uptake in People Living With Coronary Heart Disease

All participants will have a resting and exercising electrocardiogram (ECG) trace and a lung function test, called spirometry, will be performed. They will take part in a maximal CPET to determine V̇O2 peak. Participants will also have their V̇O2 peak estimated twice, twenty minutes apart, using the VentriJect Seismofit device. A short questionnaire will be administered to explore the acceptability of completing a maximal CPET and having V̇O2 peak estimated using VentriJect Seismofit.