Exercise guide · evidence-graded

Assisted Pull Up Machine

The assisted pull-up machine is an overhand pull-up performed kneeling or standing on a counterweighted platform that takes away a chosen part of your bodyweight. It works the lats, upper back and biceps, and lets you train the pull-up pattern with a full range and controlled load before you can lift your own bodyweight.

Also called: Gravitron, Assisted Chin Up Machine, Assisted Pull-up, Machine-Assisted Pull-Up · Equipment: machine · Pattern: pull

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How to do it

Step by step

Select the assistance on the stack. On most machines a heavier counterweight gives more help, so start high and work down over the weeks.
Step up onto the machine and take the overhead handles with an overhand grip at about shoulder width.
Place your knees or feet on the platform one at a time, holding the handles, and let the platform rise until your arms are straight above you.
Pull your shoulder blades down away from your ears before your elbows bend.
Drive your elbows down towards your back pockets and pull until your chin clears the handles, keeping your chest up.
Return under control over about two seconds until your arms are fully straight again.
After the last rep, return to straight arms, step one foot or knee off at a time, then let the platform settle before letting go.

Coaching cues

Shoulder blades down before you pull
Drive your elbows to your back pockets
Chin over the handles, chest up
Full hang between reps
Two seconds on the way down

In VALDA, these cues are one tap away on the exercise while you train.

Muscles worked

What it trains

Muscle	Role	Evidence
Latissimus dorsi	Prime mover	B
Biceps brachii	Secondary	C
Brachialis	Secondary	C
Trapezius: lower	Secondary	C
Teres major	Secondary	C
Brachioradialis	Secondary	C
Rhomboids	Secondary	C
Posterior deltoid: posterior	Secondary	C

Evidence grades: A = strong research base · B = good · C = limited · D = coaching consensus.

Common faults

What goes wrong, and the fix

Cutting the bottom short

Fix: Let your arms straighten fully at the bottom of every rep.

Shrugging into the pull

Fix: Pull your shoulder blades down first, then bend your elbows.

Bouncing off the platform

Fix: Take two seconds on the way down and start each rep from a still hang.

Grip far wider than the shoulders

Fix: Take the handles at about shoulder width.

Too much assistance for too long

Fix: Set the stack so the last two reps of each set are hard, then work it down.

Programming

What the research says

Muscle growth · first choiceStrengthRehab & prehabGeneral fitnessEndurance

Load and effort — Research finds muscle growth is similar across a wide range of loads when sets are taken close to failure, so a counterweight that makes 8–12 reps hard suits most muscle-building goals. Taking every set to true failure adds only a small extra benefit.
Range of motion — Studies comparing full and partial range find full range produced greater strength gains and equal or greater growth, which is why a full hang at the bottom is standard.
Volume and frequency — Research links more weekly sets for a muscle to more growth, with diminishing returns. Around 10 or more hard sets a week has been associated with more growth than fewer than 5, often spread over two or more sessions.
Grip — An EMG study found an overhand pull-up grip activated the trapezius fibres that pull the shoulder blades down more, and an underhand chin-up grip the biceps and chest more, with the lats highly active in both.
Progression — A common path is to cut the counterweight step by step, then move to slow negative pull-ups and full bodyweight pull-ups. There is no direct research comparing machine-assisted and band-assisted progressions.

Alternatives · VALDA FLEX

Swap it mid-workout

With VALDA Pro, FLEX offers alternatives like these when you swap an exercise mid-workout.

Log the assisted pull up machine in VALDA, with these cues one tap away while you train and your history for it in one place.

General information about exercise technique, not medical advice. If you have an injury or a health condition, your healthcare provider is the right person to ask.