Jefferson Squat — how to, muscles worked, alternatives

How to do the Jefferson Squat

Straddle the bar, feet wide, toes turned out.
Grip with one hand in front, one hand behind.
Lower until your thighs are about parallel, torso upright.
Drive through your whole foot to stand tall.

Full technique — 8 steps

Place a loaded barbell on the floor and stand astride it so it runs front to back between your feet.
Set your feet wide with toes turned out, then squat down and grip the bar with one hand in front of your body and one behind.
Stand up with the bar hanging between your legs, torso upright and arms straight.
Tighten your stomach, then bend your hips and knees together to lower the bar.
Lower until your thighs are about parallel to the floor, keeping the plates off the floor.
Keep your whole foot grounded and let your knees point the same way as your feet.
Drive through your whole foot to stand up, extending knees and hips together.
Alternate which hand is in front from set to set.

Common mistakes

Knees collapsing inward
Cutting the squat high
Pulling the bar up with the arms
Twisting the torso toward the front hand
Letting the plates touch the floor
Heels lifting at the bottom

Form cues

Knees point where feet point
Drive through whole foot
Torso stays tall
Arms stay straight
Tighten stomach each rep

Compared with similar variants

	Jefferson Squat	Barbell Back Squat	Hack Squat (Machine)	Low Bar Back Squat
Level	Intermediate	Intermediate	Intermediate	Advanced
Technique to learn	moderate	hard	easy	hard
How tiring	high	high	moderate	high
Lower back	moderate	high	low	high
Knee	moderate	high	high	moderate
Equipment	Barbell	Barbell, Squat rack	Hack squat machine	Barbell, Squat rack

An estimate from our exercise ratings, not medical advice. How we rate exercises

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 Box Squat Beginner
Easier Barbell Quarter Squat Intermediate
This exercise Jefferson Squat Intermediate
Harder Barbell Back Squat Intermediate
Harder Barbell Pause Squat Advanced

Too hard for now? Start with the Barbell Quarter Squat.

Quick answers

What muscles does the Jefferson Squat work?

Primary: Quads 9/10, Glutes 8/10. Also works: Hip adductors 6/10, Hamstrings 4/10, Calves 3/10.

Which joints does the Jefferson Squat load?

Lower back: moderate, Knee: moderate, Hip: moderate, Ankle: low. Lower back — lighter options: Hack Squat (Machine), Goblet Squat, Kettlebell Goblet Squat.

When should I do the Jefferson Squat in a workout?

Second big lift. Goes after the main lift, while there is still energy for heavy work. ≈ 12 min with rest.

How many sets and reps of the Jefferson Squat?

Strength: 3–5 sets of 4–6 reps, rest 3 min, 2 reps in reserve. Muscle growth: 3–4 sets of 8–12 reps, rest 2 min, 2–3 reps in reserve. Endurance: 2–3 sets of 15–20 reps, rest 1 min, 3–4 reps in reserve.

What can I do instead of the Jefferson Squat?

Dumbbells: Wide Stance Dumbbell Squat, Deficit Sumo Squat. Kettlebell: Kettlebell Deficit Sumo Squat, Kettlebell Squat. No equipment: Bodyweight Squat, Bodyweight Overhead Squat. Machine: Horizontal Leg Press, Single Leg Resistance Band Leg Press.