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The Best Workout for a Knockout Body
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The Best Workout for a Knockout Body

Give fat a one-two punch with this fast-paced circuit that matches boxing-inspired cardio with strength moves so that as you lose the flab, you unveil muscle. You'll push your aerobic and anaerobic fitness to new levels, maximizing calorie burn and amping up your metabolism while improving your cardiovascular fitness to boot. [Tweet to let everyone know you're doing this workout!]

How it works: Do as many reps as possible (AMRAP) with good form of each exercise for the prescribed amount of time. Each round uses a 2:1 interval ratio, with 2 minutes of high-intensity effort followed by 1 minute of an active-recovery strength move. Rest for 30 to 60 seconds after the strength move if needed. (If it’s too tough to hang for 2 full minutes at first, switch the ratio—1 minute cardio and 2 minutes strength—and add more rest as needed.) Perform the circuit up to 4 times total.
You will need: No equipment
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