The 2-Minute Sweat Storm
This sequence of three total-body moves will jack up your heart rate, hit every muscle from head to toe and leave you spent.
The Muscle-Blasting Burpee Ladder
This TRX workout will boost your strength while it challenges your willpower and total-body stability.
The Brutal Body Weight Burner
Broil fat, increase your heart rate, and make your muscles scream with 20 rounds of these two exercises.
The Forgotten Fat-Burning Exercise
You can do it almost anywhere, but unless you're in the military, you probably haven't tried this one since gym class.