Ultimate Strength Studio is a cardiovascular workout. The workout lasts 20 minutes, during which your heart rate will be continuously elevated. Stronger muscles work more effectively to draw oxygen from the blood and reduce the demand on the heart and lungs. Strength training, performed properly, challenges the cardiovascular system more than adequately to keep that system healthy. Muscles are the mechanisms by which we can stress and stimulate all of the body’s support systems (cardiovascular, respiratory, skeletal, metabolic, endocrine, etc.). The higher the quality of muscular work in your exercise, the greater the effect on all of your body’s systems.