You contort into all kinds of wacky positions wriggling into those skinny jeans. Bend and twist on a regular basis and that might not be necessary. An active sequence of yoga flows — a form called vinyasa — burns more than 450 calories an hour, according to Sara Ivanhoe, host of 20 Minute Yoga Makeover: Weight Loss.

This flow provides a total-body burn. Repeat  5 to 10 times.

1) Backbend

1. Stand with your feet hip-width apart. Lace your fingers behind you (palms facing up).

2. Inhaling, bend from your upper back, lift your chest, and press your shoulders down.

2) Forward Bend

1. Soften your knees and bend forward as you exhale, letting your torso hang in front of your thighs.

2. Keeping your arms straight and fingers locked together, lift them up and over your head (ultimately reaching toward the floor in front of your feet).

3) Chair

1. Inhale and bend your knees into a squat. Unlock and straighten your fingers, then separate your arms. When your thighs are nearly parallel to the floor, move your arms toward your ears. Keep your weight on your heels.

2. Inhale, stand up, and lower your arms to your sides. Exhale.

4) Downward Facing Dog

1. Get on all fours, lift your hips, and straighten your arms and legs

5) Plank

1. Inhale as you shift forward into the top of a pushup position with your arms straight.

2. Exhale, bend your elbows (keep them pointing back and hugging your body), and lower your body until your chest is on the ground.

6) Cobra

1. Uncurl your toes so the tops of your feet are touching the ground and press your tailbone down. Hug your elbows in as you inhale, straighten your arms (keep a slight bend), and lift your chest off the ground.

2. Exhale as you gently release your body back to the ground.

3. Inhale, curl your toes under, and press your hips up and back into downward-facing dog. Exhale.