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Forge Strength Systems / Biomechanics lab

Deadlift Lab: The Hinge From Floor to Lockout

Watch a pull from the floor, then switch on the common setup faults and see exactly what changes — where the bar travels, how long the hip lever gets, and which muscles pick up the slack.

Plain-English concept

The bar wants to travel in a straight line over mid-foot.

When the bar stays over the middle of your foot, you are balanced and the weight moves the shortest distance. Your hips act as the hinge; the horizontal distance from your hip to the bar — the hip lever — decides how hard your hips and lower back work.

Most deadlift faults either start the bar in the wrong place or let it drift during the pull. Both stretch that lever, so the same weight suddenly asks a lot more of your back.

Interactive model

Pick a setup, then watch the pull.

The dotted red trail is the bar path for the whole rep. Scrub from the floor to lockout, and switch to 3D to see the grip and plates.

SIDE VIEWMid-footHip lever

Lower back

Very high

Glutes / hamstrings

High

Quads

Low

Hip lever
50 cm
Bar off mid-foot
0 cm
FloorLockout

Coach takeaways

Make every rep look the same.

Bar over mid-foot

Walk in until the bar sits over the middle of your foot, about an inch from the shins.

Shoulders over the bar

Hinge down with straight arms. Your shoulders should sit just in front of the bar, hips wherever that puts them.

Lats on

Pull the slack out of the bar and keep it brushing your legs all the way up.

Stand, don't lean

Finish with hips under shoulders. Leaning back at the top adds nothing but stress.

Keep exploring

Related models

Learn it here. Apply it at Forge.

Take the idea to the bar with a coach in your corner — in Chowchilla, or through the Forge App.

Disclaimer: This is a simplified coaching education model. Real deadlift mechanics depend on limb lengths, stance, grip, mobility, injury history, and load — let a coach check your setup in person.