CRANK UP YOUR CARDIO
Want to see your heart rate soar? Of course your do—if it means you’re sweating, too. Here’s a way to raise it without getting bored of the same old stuff.
Plus: The Cardio Workout You Can Do Anywhere
You don't need a treadmill to get in a great cardio workout—you can burn flab and shape up fast with the simple mountain climber routine. Do as many as you can with good form, rest for 60 seconds, and go again. Continue in this manner until you reach 50 in a row.
How to Do It: Assume a pushup position with your arms straight and your body in a straight line from your head to your ankles. Now raise your left knee toward your chest and place the balls of your feet on the floor—as if you were in sprinter’s stance. Brace your abs and then quickly switch leg positions, so that you simultaneously kick your left leg back and bring your right leg forward. Alternate back and forth as fast as you can.
