Mountain Climbers
🔥 Fat-Burning Cardio · updated September 2026
⏱ 30 sec🔁 3 sets📶 intermediate
Targets: core + full-body calorie burn
How to do it
- 1Start in a high plank, hands under shoulders.
- 2Drive one knee toward your chest, then quickly switch legs.
- 3Keep hips level and low as you alternate.
- 430 seconds fast, 30 seconds rest.
Form tips
- • Hips stay plank-height — no pike
- • Land on the balls of the feet
- • Slow-motion version = brutal deep-core work
Common mistakes
- • Butt rising toward the ceiling
- • Bouncing on locked arms
- • Short choppy range
