# Brachialis Pull Up - Canonical: https://fitwill.app/exercise/10693/brachialis-pull-up/ - Media ID: 10693 - Primary muscle: Biceps - Body part: Upper Arms - Equipment: Pull-Up Bar - Video: https://fitwill.app/videos/10693/brachialis-pull-up.mp4 ## Description The Brachialis Pull Up is a bodyweight pull-up performed with an overhand, pronated grip on a fixed bar, deliberately biased toward the brachialis — the flat muscle that sits underneath the biceps on the front of the upper arm. Because the hands face away from you and the elbows drive down in front of the body, the elbow flexors have to work hard in a mechanically disadvantaged position, which shifts a large share of the pulling load away from the lats and onto the upper arm. It looks like a standard pull-up from a distance, but the grip width and elbow path make it a very different stimulus. This movement is especially useful for anyone who wants thicker, more complete-looking arms. The brachialis lies deep to the biceps, so developing it pushes the biceps upward and adds visible arm width from the side, something curls alone often miss. It also suits intermediate lifters who already handle several bodyweight reps and want a pulling variation that doubles as arm work, or climbers and overhead athletes who need strong elbow flexion in a pronated position. Beyond the brachialis, the exercise still trains the lats, lower traps, and rhomboids as they stabilize and move the shoulder girdle, plus the forearms and grip, which work overtime in a hard overhand hold. In that sense it behaves like a hybrid: a back exercise with a strong arm bias, rather than a pure lat builder like a wide-grip pull-up or a pure biceps movement like a chin-up. Setup matters more here than in a regular pull-up. Grip the bar slightly wider than shoulder width with the palms fully turned over, and keep the wrists fairly neutral rather than collapsed back. Starting from a dead hang with the shoulders pulled slightly down away from the ears protects the shoulder joint and ensures the first inch of the pull comes from controlled scapular movement, not a sudden jerk. To execute it well, think of pulling the elbows down toward your front pockets rather than pulling your chest to the bar. The torso stays close to vertical, the legs stay quiet, and each rep ends with the chin clearly above the bar before a slow, controlled lowering back to the hang. Rushing the descent is the most common error; the lowering phase is where the brachialis does much of its work. In practice, the Brachialis Pull Up fits best early in an arm or pull day, when you are fresh enough to own your bodyweight with strict form. If full reps are not yet available, use a controlled negative-only version or light band assistance while keeping the exact same pronated grip, so the movement pattern and arm emphasis stay intact. ## Instructions 1. Stand under a fixed pull-up bar and grasp it with an overhand grip, hands set slightly wider than shoulder width and palms facing away from you. 2. Wrap the thumbs around the bar and let your body hang with arms fully extended, feet off the floor and ankles relaxed behind you. 3. Before pulling, squeeze the shoulder blades down and together to lift yourself slightly out of a dead hang and set the shoulders in a stable position. 4. Brace the core so the torso stays upright and does not swing; cross the ankles or keep the legs straight down with minimal bend. 5. Pull by driving the elbows down and slightly forward toward the front of your ribs, keeping the wrists straight and the chest traveling vertically toward the bar. 6. Continue until your chin clears the bar and your upper arms are fully flexed, without shrugging the shoulders up at the top. 7. Pause briefly at the top, then lower yourself under control until the arms are fully straight again, resisting the drop rather than free-falling. 8. Exhale as you pull up and inhale steadily on the way down, keeping the breath rhythmic rather than holding it. 9. Reset the dead hang, re-engage the shoulder blades, and begin the next rep from a still position. 10. When finished, step down carefully or release from the bar once your feet can safely reach the floor or a stable surface. ## Tips & Tricks - The most common mistake is turning this into a regular pull-up by widening the grip excessively and letting the lats take over — keep the hands only slightly outside shoulder width so the elbows stay close to the body and the upper arm does the work. - If your elbows flare out to the sides, you are pulling with the shoulders instead of the arms; cue yourself to drag the elbows down past your ribs on every rep. - Partially bent elbows at the bottom remove most of the brachialis stimulus; straighten the arms fully at the end of each descent before starting the next pull. - Do not let the wrists bend backward over the bar — a straight, stacked wrist keeps the forearm flexors contributing and reduces strain on the elbow. - Kipping or swinging the hips turns a strict arm-dominant pull into momentum-driven back work; if you cannot stay still, do negatives at a slower tempo instead. - Because the pronated grip is harder on the forearms than an underhand chin-up grip, expect your grip to fail before your arms do at first — hanging practice between sets helps close that gap. - Control the lowering phase for two to three seconds; the brachialis responds strongly to the eccentric portion and dropping quickly wastes most of the set. - If the top position is out of reach, stand on a low box or use a light band for assistance rather than cutting the range short with half reps. - Keep the neck neutral by looking slightly upward at the bar rather than craning the chin over it, which helps avoid upper trap tension at the top. ## Frequently Asked Questions ### Which muscles does the Brachialis Pull Up work? The brachialis on the front of the upper arm is the main target, supported by the biceps and brachioradialis. The lats, rhomboids, lower traps, forearms, and grip assist throughout the pull. ### How is the Brachialis Pull Up different from a regular pull-up? It uses an overhand grip at roughly shoulder-plus width and emphasizes driving the elbows down close to the body, which shifts load from the lats toward the elbow flexors. A regular pull-up is more back-dominant with a wider elbow flare. ### Why is the brachialis hard to train with curls alone? The brachialis works hardest when the forearm is pronated, a position most curl variations do not challenge heavily. Pulling with the palms facing away trains elbow flexion in exactly that pronated position under bodyweight load. ### Can beginners do the Brachialis Pull Up? Most beginners cannot yet perform strict full reps with a pronated grip. Start with slow negatives — jump to the top and lower for three to five seconds — or use a light band for assistance while keeping the same overhand grip. ### How wide should my grip be on the Brachialis Pull Up? Set your hands slightly wider than shoulder width, thumbs wrapped around the bar. Going much wider turns it into a lat-focused pull-up and defeats the arm emphasis. ### Why do my forearms fatigue before my arms feel worked? The hard overhand grip demands a lot from the forearm flexors and grip, and they often fail first in newer lifters. Build hang time and grip strength separately, and the pulling muscles will become the limiting factor instead. ### Should I pull my chest to the bar or just my chin over it? For this variation, bringing the chin clearly above the bar with the elbows tight to the ribs is enough. Chasing chest-to-bar contact tends to widen the elbow path and re-engage the lats at the expense of the brachialis. ### What can I use instead if I do not have a pull-up bar? A pronated-grip lat pulldown with a straight bar is the closest substitute and lets you scale the load. Reverse curls with a barbell or cable also train the brachialis in a similar pronated elbow-flexion pattern. ### Is the Brachialis Pull Up safe for the elbows and shoulders? For healthy trainees it is generally well tolerated when done with a full hang, controlled lowering, and no swinging. If you have existing elbow or shoulder discomfort, reduce the range, add assistance, and clear the movement with a professional before loading it heavily.