Get Jessica Biel's Body

When celebrities are asked how they stay in such great shape, nobody wants to hear that their busy schedule just keeps them on-the-go or they just walk their dogs every day. If that were really their secret, a lot more people would have a body like Jessica Biel. It's true that hiking and walking her dogs play a role in Biel's active lifestyle, but the actress is no stranger to the gym. To maintain her perfectly toned body, Biel works out with trainer Jason Walsh three to five times a week. Walsh has said that they start every training session with walking lunges. Lunges target your quadriceps, but they also work all of the other muscles in your lower body like your butt, hamstrings and calves. When it comes to cardio training, Biel and Walsh hit the track for two 200-meter, 150-meter and 100-meter sprints. If you don't have access to a track or open area, you can do sprint intervals on the treadmill.  Just alternate between running as fast as you can for 15 to 30 seconds and then hopping off the machine and resting for 15 to 30 seconds, and keep doing it for a total of 10 minutes. At the end of her training session, Biel works her core with hanging leg raises. Her trainer says this is one of the best moves for a flat stomach. One more tip to steal from Biel's workout is that it's super important to keep changing things up. Biel has been known to play volleyball on the weekends or take a random dance class. Breaking out of a routine not only challenges your body in new ways, but it keeps things fun so you won't dread going to the gym. To find out how more celebrities stay lean and fit, check out other videos in this series.