Commando Crawl — Weighted Vest: A Complete Guide

Quick Intro

Commando Crawl — Weighted Vest is an animal-movement crawling exercise performed with the same forearm-driven pull as the Commando Crawl, wearing a light weighted vest to add load across the torso without changing the movement. That added load is the one change, and it turns an already demanding pull into a strength and core-bracing test.

Equipment Needed

A weighted vest is required, worn snugly across the torso. Something soft under the knees and forearms, a mat or towel, is a comfort option on a hard floor.

Why It Matters

The added torso load makes the alternating pull much harder to sustain, so strength, endurance and breathing are all taxed sooner. The chest muscle (pectoralis major) and the front of the shoulder cap (deltoid, anterior) drive the forearm pull against the extra weight, and the broad back muscle (latissimus dorsi) joins in to help haul the loaded torso forward. The muscles along the sides of the waist (obliques) and the central abdominal muscle (rectus abdominis) brace hard against the added load, and a deep core muscle that wraps around the torso like a corset (transverse abdominis) keeps the belly from sagging under the vest’s weight.

When to Do It

This version works well once the base Commando Crawl’s belly-clearing drag feels controlled, as a strength test inside a primal movement session. Two sessions a week, with attention paid to control over speed, suits most people adding this load.

Anyone with a current shoulder, elbow or lower back issue should still get individual guidance before starting, since the vest adds load to an already demanding crawl.

Getting Ready

A few minutes of shoulder circles and an unweighted crawl warm up the shoulders and core before the vest goes on. A short, light-vest set previews the added load before a full working set begins.

Step-by-Step Instructions

1. The setup. Put on the weighted vest, then lie face down and prop onto the forearms so the belly stays just clear of the floor.

2. The first pull. Drive the right elbow back while the left toes dig in and push, dragging the loaded body forward.

3. The second pull. Drive the left elbow back while the right toes push, continuing the loaded drag forward.

4. The repeat. Keep alternating the forearm pull and opposite-toe push, keeping the drag controlled under the added load.

How Many, How Often

Commando Crawl — Weighted Vest is dosed by distance, since the goal is sustaining a controlled drag over ground covered under load.

Keeping the drag controlled under load matters more here than how far the set covers, since letting the hips rise or the pace speed up to cover ground trades away the strength benefit this version is built to add.

Modifications and Variations

As the easier version, Commando Crawl performs the identical pulling pattern without any added load, the version to return to if the vest starts breaking down the belly-clearing drag.

Common Mistakes to Avoid

Starting with too much added weight. Loading up a heavy vest before the unweighted pattern is solid makes the hips rise or the drag turn sloppy almost immediately. Starting light and adding weight gradually keeps the crawl low and controlled.

Letting the hips rise to compensate for the load. Piking the hips up under the added weight removes the flat, prone line this pattern depends on. Keeping the body in one straight line from shoulders to heels, even under load, protects the intended benefit.

Rushing the pace to fight fatigue. Speeding up as the vest starts to wear on the shoulders trades control for momentum. Slowing the tempo down whenever fatigue creeps in keeps the crawl under control.

After Your Set

Removing the vest and pushing back into a child’s pose style stretch, hips toward the heels and arms extended forward, releases the shoulders and hips after a set of loaded crawling. A few gentle forearm and wrist stretches finish easing the arms.

Going Deeper

This version is a strength step up for anyone who already moves through the Commando Crawl with a flat, controlled line, since the added vest load makes any loss of core bracing show up immediately as hip sag. The extra weight makes the position tiring faster, so it is common for the pace to speed up under fatigue as a way to cover ground before the arms give out. Slowing back down whenever the pace starts creeping up builds strength faster than rushing through a set.

Someone comfortable with the base pattern typically manages a light vest over a short distance within a couple of sessions, then works toward a heavier vest over a longer distance over two to four weeks.

How to Know You’re Improving

1. A flat, controlled body line that holds even under the added load
2. A pace that stays steady rather than speeding up under fatigue
3. A vest load that can gradually increase while the pattern stays clean
4. A distance that keeps growing while the drag stays controlled

A flat, controlled crawl held under load is better evidence of progress than the vest weight alone.

Muscles Worked

• Anterior Deltoid (the front of the shoulder cap, reaching forward with the vest’s weight pressing down on the shoulder)
• Pectoralis Major (the chest muscle, pulling a heavier torso up to the elbow on each stroke)
• Transverse Abdominis (a deep core muscle that wraps around the torso like a corset, resisting the vest’s pull toward the floor)
• Iliopsoas (the hip flexor group at the front of the hip, dragging the trailing leg under the extra weight)
• Latissimus Dorsi (a large back muscle, doing most of the hauling once the load goes up)
• Obliques (the muscles along the sides of the waist, stopping the loaded torso rolling side to side)
• Rectus Abdominis (the abdominal muscles running down the front of the stomach, holding the body flat against the vest’s downward pull)

FAQ

Is this the same pattern as Commando Crawl? Yes, it uses the identical alternating elbow-and-toe pulling pattern as Commando Crawl. The only change is wearing a light weighted vest, which adds load to the pulling and core-bracing demand without changing the movement.

Why does a weighted vest make such a difference? Adding load across the torso means the same forearm pull now has to move more weight, and the core has to brace harder to stop the added weight from sinking the hips toward the floor.

When is it time to try the weighted vest? Once the unweighted crawl stays flat and controlled over a full set with the belly clear of the floor, adding a light vest here is a reasonable next step.

Is some shoulder or core fatigue after this exercise normal? Yes, fatigue through the shoulders, arms and core after a loaded crawling set is expected. A sharp pain anywhere in the shoulder or lower back is different and worth a doctor or physical therapist’s opinion.

How often should the weighted version be trained? Two sessions a week, with attention paid to control over speed, suits most people well given the added load.

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Related to Commando Crawl, the easier version done without added weight.