What Does Underhand Lat Pulldown Work? | Back Muscles Named

The underhand lat pulldown is a vertical pull done with your palms facing you. That grip changes the feel of the lift. Your elbows tend to travel closer to your ribs, your biceps get more work, and many lifters feel a stronger squeeze through the lower lats.

It’s still a back exercise, not a curl. The lats drive the bar down by moving the upper arms toward the sides of the body. The arms assist, the shoulder blades glide down and back, and the torso stays steady so the target muscles can do their job.

Underhand Lat Pulldown Muscles Worked With Better Form

The main muscle is the latissimus dorsi. Cleveland Clinic describes the lats as the large muscles running from below the shoulder blades toward the spine and lower back, which explains why a good pulldown can make the whole side of the back feel loaded. Cleveland Clinic’s back muscle overview gives a clear anatomy reference for that area.

The underhand grip also brings the elbow flexors into the lift. Your biceps brachii, brachialis, and brachioradialis help bend the elbows as the bar comes down. That’s why some people feel this version in their arms more than a wide overhand pulldown.

NASM notes that the lat pulldown is a compound back exercise that targets the latissimus dorsi while using several grip options, including reverse-grip pulldowns. NASM’s lat pulldown biomechanics is a useful source for the grip and movement pattern.

What You Should Feel During Each Rep

A clean rep should feel like your elbows are being pulled down toward your pockets. Your chest can lift a little, but your ribs shouldn’t flare wildly. Your upper arms move, your shoulder blades settle, and the bar finishes near the upper chest.

If your forearms burn before your back wakes up, your grip may be too tight or the load may be too heavy. Think of your hands as hooks. Pull with the elbows, pause for a beat, then let the bar rise until the lats stretch.

Primary And Assisting Muscles

Use this table to match each muscle with what it does during the underhand pulldown. The first column names the area, the second explains the role, and the third gives a simple cue you can use on the next set.

Muscle Or Area	Role In The Lift	Form Cue
Latissimus Dorsi	Pulls the upper arms down and back toward the ribs.	Drive elbows toward your pockets.
Biceps Brachii	Bends the elbows as the bar moves down.	Let arms assist, not take over.
Brachialis	Adds elbow flexion power under the biceps.	Keep wrists straight.
Brachioradialis	Helps the forearm and elbow stay strong through the pull.	Don’t crank the wrists back.
Teres Major	Helps pull the upper arm down near the shoulder joint.	Keep elbows close to the ribs.
Rear Delts	Assist as the upper arms travel behind the torso line.	Don’t yank with the shoulders.
Rhomboids	Help control the shoulder blades near the bottom of the rep.	Squeeze gently, then release.
Lower Traps	Help pull the shoulder blades down.	Keep shoulders away from ears.
Core	Keeps the torso steady while the arms pull.	Brace like you’re about to cough.

Why The Underhand Grip Feels Different

With palms facing you, your elbows usually stay in front of the body and close to the sides. This can make the movement feel smoother for lifters who dislike wide-grip pulldowns. It also allows many people to use a longer range of motion.

The trade-off is simple: the arms get more room to help. That isn’t bad. It can be useful if you want a back move that also gives the biceps extra training. It becomes a problem only when the set turns into a heavy seated curl.

How To Set Up The Machine

Set the thigh pad snugly so your hips don’t rise. Use a straight bar or angled pulldown bar, then grip it just inside shoulder width. Sit tall, lean back a little, and start with the arms long.

1. Pull the shoulders down before bending the elbows.
2. Bring the bar toward the upper chest.
3. Pause when the elbows are near the ribs.
4. Return the bar slowly until the lats stretch.
5. Stop each set when form starts to slip.

A smooth tempo beats swinging. If the stack slams down or your torso rocks on every rep, lower the load. Better reps give the back more direct work and keep the elbows happier.

Using What Does Underhand Lat Pulldown Work? In Your Training Plan

This lift fits best after heavy rows, pull-ups, or deadlifts, or as your main vertical pull on back day. The American College of Sports Medicine position stand on resistance training notes that exercise order, sets, reps, and load all shape the training result. ACSM’s resistance training position stand gives the broader training context.

For muscle growth, most lifters do well with controlled sets of 8 to 12 reps. For lighter practice work, 12 to 15 reps can teach the pattern. For strength work, 6 to 8 reps may fit, but only if the shoulders stay down and the bar path stays clean.

Goal	Sets And Reps	Load Cue
Learn The Lift	2 to 3 sets of 12 to 15	Light enough to pause each rep.
Build Back Size	3 to 4 sets of 8 to 12	Hard final reps with no swing.
Train Strength	3 to 5 sets of 6 to 8	Heavy, but still chest-high finish.
Arm And Back Pump	2 to 4 sets of 10 to 15	Steady pull and slow return.
Finisher Set	1 to 2 sets of 15 to 20	Light, clean, no forced reps.

Common Mistakes That Steal Back Work

The most common error is turning the pulldown into a body swing. Leaning back a little is fine. Throwing your torso backward to move the stack means the load is too heavy.

• Pulling too low: Stop near the upper chest, not the stomach.
• Letting shoulders shrug: Start each rep by setting the shoulders down.
• Curling the bar down: Lead with elbows instead of hands.
• Using a loose seat: Lock the thighs under the pad.
• Rushing the return: Let the lats stretch under control.

Who It Fits Best

The underhand version is a good pick for lifters who want a strong lat contraction with more arm help. It also suits people who feel awkward with a wide overhand grip. The closer elbow path can feel friendlier for some shoulders, as long as the wrists and elbows stay lined up.

Skip it for a while if it causes elbow pain, wrist strain, or pinching near the front of the shoulder. Try a neutral-grip pulldown, single-arm cable pulldown, or assisted pull-up instead. Pain is feedback, not a badge of effort.

Simple Form Checks Before You Add Weight

Before adding plates, run a fast form audit. Your chest should stay proud, your lower back should not arch hard, and the bar should move in a steady line. The rep should start from the back and finish with the elbows near the sides.

If you can pause the bar near your upper chest for one second, you’ve probably chosen a useful load. If you need momentum to reach the bottom, strip the weight back. The best pulldown set is the one your lats can feel from start to finish.

So, what does the underhand lat pulldown train best? It trains the lats first, the elbow flexors second, and the mid-back as the control system. Use it with clean reps, smart load jumps, and a steady return, and it becomes a dependable back-day staple.