Cable Kneeling One Arm Row is a beginner cable exercise for the primary: back (latissimus dorsi, with the rhomboids) secondary: biceps and core stabilizers assisting. Most lifters train it for 3 to 4 sets of 10 to 15 reps.
Kneel beside a cable machine with the cable set low. Grab the handle with one hand and keep your chest tall with core engaged. Pull the handle toward your torso, squeezing your back muscles. Slowly return to the start with control and repeat for reps, then switch sides.
Put the kneeling one arm cable row in the middle of a back or pull session, after heavier pulldowns or barbell rows and before arm work. Use 3 to 4 sets of 10 to 15 reps per arm. The kneeling stance takes the legs out of the pull and makes it a strict lat and rhomboid builder with a built in anti rotation core demand.
Kneel far enough from the stack that the plates never touch down at full arm extension, and keep the hips square to the machine. Start with 15 to 20 kg on the stack and add one plate, roughly 2.5 to 5 kg, once all sets reach 15 reps without the torso twisting. The most common fault is rotating the shoulders open to finish the pull, which looks like a longer rep but takes the lat out. Fix it by reaching your free hand across to touch the machine frame or bracing it on the front thigh so the torso stays locked.
It targets the latissimus dorsi and rhomboids, with the rear delt, biceps and lower trap assisting on the pull. The half kneeling position also loads the obliques, which have to resist the cable pulling you into rotation.
Kneeling is stricter because you cannot use leg drive or a hip shift, so it is better for isolating the back with moderate loads. Standing lets you handle more weight and matches athletic positions more closely.
Kneel on the opposite knee, so the leg nearest the pulley is down and the far side arm rows. This crossed position gives the widest base and forces the core to resist rotation.
Log your cable kneeling one arm row sets in 1RM.fit and watch your estimated 1RM update automatically as you get stronger.