Cardio Workouts for Weight Loss. Aerobic exercise can help you to lose weight, as well as increase your overall health. Aerobic exercise provides the dual benefits of working large muscle groups, while simultaneously elevating the heart rate for an extended amount of time. These exercises are particularly helpful in keeping your heart in good shape. Healthy exercise will burn fat without the bulky muscle gain of weight-based exercise programs. Experts recommend that aerobic exercise is most effective if practiced between 3 to 6 days a week for between 30 and 60 minutes at a time. Before starting an aerobic workout plan, consult your doctor for an idea of a healthy program implementation.