Class begins with a 5 minute rhythmic warm-up and stretch followed by approximately 15 minutes of strength training with elastic bands. The remaining time focuses on movement to music. With this low impact aerobic segment, expect to get an excellent, moderate intensity work-out which minimizes stress to the joints. Cardio exercise is executed at your own level. Your intensity is up to you. It is up to you to exercise responsibly. See your doctor if you are uncertain where your heart rate level should be while exercising.