4 Exercises to Do While You Watch TV

Standing Lunges

"By doing lunges slowly, you increase intensity," says personal trainer Pete Cerqua, author of The 90-Second Fitness Solution. Standing, take a big step forward with your right leg. Sink halfway into a lunge (right knee at a 45-degree angle) and hold for five seconds. Sink further (your knee at a 90-degree angle); hold for five seconds. As you rise up, pause halfway and hold five more seconds, then return to a standing position. Repeat, alternating legs.

Got 10 minutes? Here's a fast fitness plan that will get you in shape inside and out