Core · Intermediate · No equipment

Mountain Climber

Abs · also Hip Flexors, Front Delts

How to do it

• Start in a high plank, shoulders over wrists, body in a straight line
• Brace your abs and keep your hips level with your shoulders
• Drive one knee toward your chest without lifting your hips
• Switch legs, sending the front leg back as the other knee drives in
• Keep your torso rigid and your hands planted throughout

Common mistake

✕ HIPS PIKING UP HIGH → ✓ HIPS LEVEL WITH YOUR SHOULDERS

Starting point: 3 sets × 10–15 per side, 45s rest.

In the app: rotate the 3D model, slow it down and watch the mistake next to the correct form.

Cues checked against: acefitness.org, my.uiw.edu.