21 Day Fix Extreme - Obsessed with Fix

Sagi Kalev leads this night time stretching routine meant to complement the regular bodybuilding workouts. Filmed in 2015 as an add-on to the original...

This sweat-drenching boxing program delivers a maximum cardio burn by combining technique, repetition, and intensity for an incredible TOTAL-body work...

You’ll need an agility ladder for this workout, which uses fast footwork and dynamic total-body movements to improve speed, enhance coordination, and...

This workout lives up to its name with nine rounds of kicks and knee strikes that will work your legs, butt, and core like never before. Level: Advanc...

Estelle Getty, from "The Golden Girls" TV show, presents a complete body conditioning workout that's safe, effective and so much fun you'll hardly kno...

This heavy-lifting workout is full of super, giant, and force sets to help create a stronger, more sculpted upper body. Works Well For: Muscle Buildi...

Using Dynamic Set Training, this workout is designed to improve strength in your calves, quads, hamstrings, and glutes while shaping your legs and bur...

We're not talking crunches. This workout will challenge your midsection in ways you've never experienced before. Be ready to challenge your core. Wor...

This workout has only five exercises, but by the time you’re done, you’ll have completed more than 350 reps and worked your entire body. Level: Inter...

David Carradine explores the beginnings of spiral fitness.

Muscle Burns Fat - Sample Workout

This fun freebie features the most effective abdominal exercises and it’s designed to help even those who are battling genetics to flatten their tummi...

4 rounds of fat-burning exercises help carve out a leaner, stronger physique.

Firm and tone your entire lower body while you blast fat and burn calories.

Keep your heart rate up and your metabolism revved high long after the workout is over.