OBJECTIVE: Previously published results of the OPTICARE XL open label randomized controlled trial showed no added value of OPTICARE XL CR, a dedicated cardiac rehabilitation (CR) program for patients with obesity, with respect to health-related quality of life (primary outcome). This clinical trial studied the effects of OPTICARE XL CR on several secondary outcomes, which included body weight, physical activity, sedentary behavior, and physical fitness. METHODS: Patients with coronary artery disease or atrial fibrillation and body mass index (BMI) >= 30 were randomized to OPTICARE XL CR (n = 102) or standard CR (n = 99). OPTICARE XL CR is a 1-year group intervention, specifically designed for patients with obesity, and included aerobic and strength exercise, behavioral coaching, and an aftercare program. Standard CR consisted of a 6- to 12-week group aerobic exercise program, supplemented with cardiovascular lifestyle education. Study end points included body weight, physical activity, sedentary behavior (accelerometer), and physical fitness (6-Minute Walk Test and handgrip strength), which were evaluated 6 months after the end of CR (primary end point) and 3 months after the start of CR. RESULTS: Six months after completion of either program, improvements in body weight, physical activity, sedentary behavior, and physical fitness were similar between groups. Three months after CR start, patients randomized to OPTICARE XL CR showed greater weight loss (mean change -3.6 versus -1.8 kg) and a larger improvement in physical activity (+880 versus +481 steps per day) than patients randomized to standard CR. CONCLUSIONS: Patients allocated to OPTICARE XL CR lost significantly more body weight and showed promising results with respect to physical activity 3 months after the start of CR; however, these short-term results were not expanded or sustained in the longer term.

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