The mountain climber is one of those classic gym class exercises we all know and love. It's a good exercise to get your heart rate up, but there's a lot to be gained by this movement if you slow it down!
Check out RD's 3 progressions to help you build a strong mountain climber and a stronger core!
Mountain Climber Version #1 (With Support):
1) With your foot on a val slide (or a paper plate) push the plate into the floor to engage the moving side.
2) Pull your knee up until the knee cap passes your waist.
3) Continue to drive the val slide into the floor as you return to your start position
Mountain Climber Version #2 (No Support):
1) Starting in your push-up position, try to recreate the tension you created in version #1.
2) Pull the foot and knee up like there's a band around your feet resisting you.
3) Tap the floor, then return to your start position while maintaining your tension.
Mountain Climber Version #3 (With Resistance):
1) Now, turn up the heat by putting a mini-band around the arches of your feet.
2) Starting in your push-up position, try to recreate the tension you created in version #1.
3) Don't let the band throw you off, keep the hips stable!