You can get a lot of things done within 30 minutes, including a full-body high intensity resistance training (HIRT) workout which will work just about every muscle in your body.
Using just a pair of the best adjustable dumbbells, this high-intensity muscle-building routine is created Dan, one-half of the YouTube fitness duo Tiff x Dan. This particular sweat session is designed to build strength, tone muscle and elevate your heart rate, which, in turn, will help improve your cardiovascular endurance.
