When it comes to no-fuss workouts, hiking ranks right up there with walking (it is walking-jus on uneven terrain). It's easy to do and it leaves you with a sense of accomplishment, which is why Bay Area fitness expert and Shape advisory board member Lorrie Sullenberger took to it. "You can challenge yourself to hike a hill faster or to go farther then last time. I always return feeling stronger," says Loffie, whose husband-and frequent hiking partner-is hero US Airways pilot Chelsey "Sully" Sullenberger.

Ten years ago, Lorrie joined a gym to lose weight. When she didn't see results, she gathered a few friends and started hiking. "It was only when my focus shifted from the size of my butt to the scenery around me that the weight began to melt away," she says. "It was enjoyable, and I finally lost those extra 35 pounds I'd been carrying around!"

Lorrie still hikes a couple of times a week and regularly treks with client. "We take jump ropes, exercise bands, and hiking poles and use the environment for moves," she says. She's created a workout exclusively for Shape that you can do on the trails or your local park. You'll be more confident after your first outing, and before you know it, you'll be stronger, fitter, and leaner.

The Walking Diet: How it Works

Do this routine 2 or 3 times a week. Hike for 15 or 20 minutes, stop and do 1 set of the moves, then repeat the hike and exercises as many times as you want.

The Walking Diet: What You'll Need

A resistance tube or band (your partner should have one too). If you have hiking poles, use them. They help stabilize you on uneven ground and make your trek feel easier (which means you can go longer and burn more calories!).