Rihanna's Fitness Plan

Rihanna is proof that you don't need a complicated training program to have a great body. She gets a ton of exercise when she's on stage dancing, but her trainer, Ary Nunez, says Rihanna burns fat and builds muscle biking for 30 to 40 minutes, three to five times a week. So if you haven't hopped on a bike recently, you might want to reconsider. Training on two wheels offers a ton of killer body benefits, and it eliminates risk of injury, which isn't true for running on pavement. If you're still not convinced, here are a few reasons why you should follow Rihanna's lead: first, biking is a great way to burn calories: a 135-pound woman pedaling 12 to 14 miles an hour blasts about 488 calories in just one hour. And it tones your upper body, too! Cyclists are known for having killer legs since the quads, glutes, and calves are what propels the bike, but working the handlebar also trains your upper body. Rihanna may also prefer biking to high-impact cardio like running because it puts a lot less stress on the knees, ankles, and spine. So it's less likely to cause an injury that would affect her performance. Finally, biking is not only great for your body, but also for the environment. If you live within 5 miles of work, that's a totally doable 20-minute ride each way. Do it twice a week, and you can burn up to 3,000 extra calories each month! So what are you waiting for??? Start biking your way to a better body today! And to learn how more celebrities stay lean and fit, check out other videos in this series.