Suspension Trainer Mountain Climbers — how to, muscles worked, alternatives

How to do the Suspension Trainer Mountain Climbers

Place your feet securely in the suspension trainer cradles, adjusting the straps.
Begin in a plank position, hands directly beneath your shoulders, legs extended.
Quickly bring one knee toward your chest, keeping your body stable and straight.
Return your foot to the starting position, and repeat with the other leg.

Full technique — 7 steps

Set the suspension trainer to mid-calf length and place both feet securely in the cradles.
Move into a high plank with hands under your shoulders and legs extended behind you.
Tighten your stomach, squeeze your glutes, and keep your body in a straight line from head to heels.
Drive one knee forward under your torso toward your chest without shifting your shoulders back.
Return that foot to the start position as the opposite knee drives forward.
Alternate legs in a quick running rhythm while keeping your hips as level as possible.
Keep the straps quiet by resisting side-to-side sway and hip rotation.

Common mistakes

Hips piking high above shoulders
Short knee drive under torso
Shoulders drifting behind hands
Excessive side-to-side hip sway
Feet swinging in the straps

Form cues

Shoulders over hands
Run knees under torso
Keep hips level
Keep straps still

Substitutes by equipment

Same muscles, same movement — pick the version you have the gear for.

Where to start and where to go next

Same muscles, same movement. Too hard for now — step down; once it gets easy — step up.

Easier Reverse Crunch 25% of bodyweight
Easier Supine Suspension Trainer Knee Tuck 45% of bodyweight
This exercise Suspension Trainer Mountain Climbers 55% of bodyweight
Harder Ab Wheel Knee Tuck 60% of bodyweight
Harder Suspension Trainer Hanging Leg Raise 85% of bodyweight

Too hard for now? Start with the Supine Suspension Trainer Knee Tuck.

Quick answers

What muscles does the Suspension Trainer Mountain Climbers work?

Primary: Abs 9/10. Also works: Obliques 5/10, Lower back 3/10.

When should I do the Suspension Trainer Mountain Climbers in a workout?

Finisher. Goes last, once the heavy work is done. ≈ 6 min with rest.

How many sets and reps of the Suspension Trainer Mountain Climbers?

Strength: 3–4 sets of 8–12 reps, rest 1 min 15 s, 2–3 reps in reserve. Muscle growth: 3–4 sets of 12–20 reps, rest 1 min, 2–3 reps in reserve. Endurance: 2–3 sets of 20–40 reps, rest 45 s, 3 reps in reserve.

What can I do instead of the Suspension Trainer Mountain Climbers?

No equipment: Ab Wheel Half Rollout, Alternating Forearm Supported Leg Raise. Barbell: Barbell Overhead Sit-Up. Resistance bands: Resistance Band Dead Bug, Lying Resistance Band Crunch. Weight plates: Plate Overhead Sit-Up.