While treadmill workouts can certainly be effective, they also get redundant, thus killing your workout motivation. Plus, you may not always have access to a cardio machine. This workout is designed to give you the heart-rate-revving session you want in a short period of time without any machines. The interval-style setup will help you burn more fat, improve athletic performance, boost stamina, and keep your metabolism going strong for hours after your workout is over.
How it works: Three or four days per week, do each exercise at a high intensity for 30 seconds, resting 30 seconds between moves. Once you've completed the last exercise in the circuit, jump rope at a quick pace for 5 minutes. Repeat the entire series 3 times.
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