# Cable Single Arm Triceps Pushdown (Rope Attachment) - Canonical: https://fitwill.app/exercise/7399/cable-single-arm-triceps-pushdown-rope-attachment/ - Media ID: 7399 - Primary muscle: Triceps - Body part: Upper Arms - Equipment: Rope Attachment - Video: https://fitwill.app/videos/7399/cable-single-arm-triceps-pushdown-rope-attachment.mp4 ## Description The Cable Single Arm Triceps Pushdown (Rope Attachment) is a unilateral isolation exercise performed at a cable station with a rope handle set at the top pulley. You stand facing the machine, brace your free hand against the frame for stability, and extend one arm down and slightly back until the elbow locks out fully. Because you work one arm at a time, it is easier to spot and fix left-right strength differences than with a two-handed pushdown. The exercise targets the triceps brachii, the three-headed muscle on the back of the upper arm responsible for straightening the elbow. The rope setup encourages a slight outward flare at the bottom of the rep, which lets the elbow finish in full extension and keeps constant tension on the triceps from start to finish. The forearms and grip contribute to holding the rope ends, but the workload should stay on the upper arm. The slight forward lean you see in this setup is not accidental. Hinging a few degrees at the hips and bracing the non-working hand against the machine gives you a stable base so your torso cannot twist or help push the weight. This matters more on the single-arm version than the standard pushdown, because with only one arm loaded, the body naturally wants to rotate toward the working side. To execute it well, keep the upper arm pinned close to the ribs and let only the forearm travel. Pull the rope down until the elbow is straight, split the rope ends slightly apart as you reach lockout, and pause for a beat before letting the hand rise back up under control. If your elbow drifts forward or your shoulder rolls in, the weight is likely too heavy. This movement suits lifters of most levels who want focused triceps volume, particularly those addressing one arm lagging behind the other or dealing with discomfort on a straight bar. The rope allows the wrist to sit in a neutral position, which many people find friendlier on the elbow joint than a rigid bar. It fits well at the end of a push or upper-body session for 2 to 4 sets of 10 to 15 reps per arm. Practically speaking, always finish the full set on one side before switching, and match the reps exactly on both arms. Start lighter than you think you need, since the cable keeps tension on the triceps even at the top of the rep and there is no rest anywhere in the range of motion. ## Instructions 1. Attach a rope handle to the highest pulley of the cable machine and select a light-to-moderate weight on the stack. 2. Stand facing the machine, grab the rope with one hand using an overhand grip near the end, and take one step back so the cable is taut before the rep begins. 3. Hinge slightly forward at the hips, brace your free hand against the machine frame or pulley column for support, and set your feet about hip-width apart. 4. Pin your working elbow against the side of your ribs and keep it there throughout the set; this is your fixed hinge point. 5. Exhale and pull the rope down by straightening the elbow, sweeping the hand down and slightly out to the side of your hip. 6. At the bottom, fully straighten the arm and pull the rope end slightly outward so the elbow reaches complete lockout, and squeeze the triceps for a moment. 7. Inhale and let the hand travel back up in a slow, controlled arc until the forearm is roughly parallel to the floor, keeping the elbow glued to your side. 8. Complete all reps on one arm, then switch hands, brace the opposite hand against the frame, and match the rep count on the other side. 9. Reset your stance and lean between sets if you feel your torso start to twist, and reduce the load rather than compensating with body movement. ## Tips & Tricks - If your torso rotates toward the working arm as you press down, lighten the load and push your free hand harder into the machine frame to lock the shoulders square. - Watch that the working elbow does not drift forward at the bottom; if it does, you are turning the move into a partial press and losing triceps tension. - Split the two rope ends apart at lockout rather than pulling straight down. This small outward sweep lets the forearm rotate naturally and finishes the triceps contraction. - Keep the wrist neutral and hold the rope end near the cap, not halfway up the rope, so the cable pull does not bend your wrist backward. - Because the cable stays loaded at the top, avoid letting the hand fly up quickly between reps; a two-count return keeps the triceps working eccentrically. - If you feel pinching at the back of the elbow, check for full lockout with tension rather than slamming into extension, or reduce the weight slightly. - Stand far enough back that the cable stays taut at the top of the rep; standing too close lets the stack rest and removes tension from the starting position. - Match reps and load exactly between arms, and always start with your weaker side so the strong arm does not set an unfair pace. ## Frequently Asked Questions ### Which muscles does the Cable Single Arm Triceps Pushdown (Rope Attachment) work? The triceps brachii on the back of the upper arm is the prime mover, with all three heads engaged through the lockout. The forearms and grip assist by holding the rope ends steady. ### Why use a rope instead of a straight bar for this pushdown? The rope lets your wrist stay neutral and allows a slight outward split at lockout, which many lifters find more comfortable on the elbows than a fixed bar. It also lets the forearm rotate naturally as the arm extends. ### Is the single-arm version better than a two-arm pushdown? Neither is universally better, but the single-arm version makes it easy to detect and correct side-to-side strength gaps. It also lets you brace with the free hand, which helps keep the torso from twisting. ### Why brace the non-working hand against the machine? Bracing the free hand against the frame anchors your torso so the load cannot rotate your shoulders toward the working side. It keeps the movement isolated to the elbow joint. ### How far should I bend forward during this exercise? A slight forward lean from the hips is enough to align the cable path with the side of your body. Bending much further turns it into a different angle of work and often causes the shoulder to take over. ### Should my elbow move during the rep? No, the upper arm should stay pinned to your ribs with only the forearm traveling. If the elbow swings forward or away from your body, the weight is too heavy or fatigue is setting in. ### Can beginners do this exercise? Yes, it is a beginner-friendly triceps exercise because the cable path guides the movement and the free hand provides balance. Start with a light weight and focus on keeping the elbow fixed before adding load. ### What can I substitute if the cable station is busy? A single-arm pushdown with a straight bar or single handle at the same station is the closest swap. Resistance band pushdowns anchored overhead also train the same pattern at home. ### How many reps and sets should I do per arm? Two to four sets of 10 to 15 reps per arm works well for muscle-building, keeping the load moderate so form holds through the lockout. Always match the weaker arm's rep count. ### Is it safe to lock out the elbow at the bottom? Full lockout with a controlled weight is generally fine and actually completes the triceps contraction. Avoid slamming into extension with heavy loads or momentum, and stop if you feel sharp elbow discomfort.