Exercise in PR has demonstrated improvements in physical capacity, health-related quality of life, dyspnea, and fatigue.5 Recommendations have stipulated at least three exercise sessions weekly, two of which are to be preferably supervised.6 However, the supporting evidence for this degree of supervised exercise is limited 7 and was subsequently contradicted by others who provided only once-weekly exercise supervision.8–11 These later studies question the conventionally recommended degree of exercise supervision. The frequency of supervised exercise sessions has relevance to our study. As we will explain in the Materials and methods section, our intervention was once-weekly supervised exercise added to a self-management program, which we offered as a combined PR approach.