Introduction
In the UK, it is recommended that patients participating in the exercise component of a cardiovascular prevention and rehabilitation programme (CPRP) should undergo a baseline assessment of their cardiorespiratory fitness (CRF).1,2 The rationale behind this assessment is to measure programme outcomes, risk stratification and provide information for physical activity advice. In the UK, many CPRP use the Chester step test (CST), incremental shuttle walk test (ISWT), or the six-minute walk test (6MWT) to assess the changes in CRF following an exercise intervention.2 The choice of exercise test is usually dependent on the patient’s
