Lee Boyce: The 2-Minute Back Squat creates balance and kicks the crap out of your conditioning in the process.
Guys over 200 pounds, or taller athletes, should be completely torched after this bad boy.
How To: Load the bar so it's equal to your body weight and squat through a full range of motion for two minutes straight.
You can stand up and breathe between reps as long as you need (don't rack the weight), but try to do as many reps as you can.
Make sure you have a spotter or safety racks at the bottom should you fail on a rep.