The barbell row works the back first, with the biceps and forearms as secondary muscles — and so do the other three horizontal rows in the Zyra Workouts catalog. The barbell bent-over row, the single-arm dumbbell row, the T-bar row and the seated cable row share one muscle list and one target table; what separates them is equipment, support, rest and step. This guide leads with the barbell row and then puts the four side by side.

Muscles worked

RoleMuscle groupCounts per working set
PrimaryBack1 set
SecondaryBiceps0.5 set
SecondaryForearms0.5 set

Mechanically a row is horizontal shoulder extension (the lats and the muscles between the shoulder blades pull the upper arms back) plus elbow flexion (biceps and forearm flexors bend the arm and hold the bar). In the bent-over version nothing supports the torso, so the muscles along the spine hold the hinge while the arms row — the catalog does not credit that as a separate group, because it has one back group and no core credit on this row. All of this describes the movement; none of it is an EMG measurement.

Setup and execution

  1. Stand over the bar, hinge at the hips until the torso is somewhere between 45° and nearly parallel to the floor, knees slightly bent. Pick an angle and keep it for the block — a more upright row is a different lift for progression purposes.
  2. Grip a little wider than the shoulders, palms toward you (overhand). An underhand grip is the same catalog row with the elbows closer to the sides.
  3. Pull the bar to the lower ribs, elbows travelling back rather than out, then lower under control to straight arms without letting the torso rise.
  4. Log the bar total, bar included. The plate calculator lays a target load out per side.

Four rows side by side

Barbell bent-over rowSingle-arm dumbbell rowT-bar rowSeated cable row
Equipmentbarbelldumbbellmachinecable
Categorycompoundcompoundcompoundcompound
Musclesback; biceps, forearmsback; biceps, forearmsback; biceps, forearmsback; biceps, forearms
Default rest150 s120 s120 s120 s
Unilateralnoyesnono
Torso supportnone — you hold the hingeone hand and knee on a benchchest pad on most machinesseated, feet braced
Load logged asbar totalper handmachine loadstack weight
Step2.5 kg2 kg2 kg2 kg
Plate-inventory checkyesnonono

Two things stand out. First, the count is identical: swap any row for any other and your weekly back, biceps and forearm totals do not move. Second, the barbell row is the only one where holding the position is part of the work, which is why it gets the longest default rest of the four. The single-arm row's unilateral flag means the L/R toggle splits each set into a left row and a right row with their own weight, reps and RIR — and each row counts as a working set, so three per side is six counted sets.

Rep and RIR targets by goal

All four rows are compound.

GoalRepsRIRRep ceilingSets (beginner / intermediate / advanced)
Strength3–5263 / 4 / 5
Hypertrophy6–102102 / 3 / 4
General fitness8–122122 / 3 / 4

RIR is reps in reserve — how many more reps were left when the set stopped. @RIR 2 means the set ended two reps short of failure. The rep ceiling is the engine's "expected max": the midpoint of the range plus the RIR target, round((repMin + repMax) / 2) + rir. Beat the ceiling and the load steps up next time.

How progression steps on this exercise

The barbell row steps 2 × 1.25 = 2.5 kg with the default plates; the other three step 2 kg. On the hypertrophy target (6–10 @RIR 2, ceiling 10):

RowLast setNext session
Barbell bent-over row70 kg × 1172.5 kg × 6 — progress
Single-arm dumbbell row (one side)30 kg × 1132 kg × 6 — progress
Seated cable row60 kg × 558 kg × 6 — back-off

In plain terms: one rule, four steps. For the barbell row the wand also checks that the recommended load can be built from your plates; the other three are assumed adjustable. The barbell row 1RM page estimates a single-rep max from any logged set.

Alternatives

Ranked for the barbell bent-over row (same primary — back; +4 loadable, +2 same category, +1 same equipment, then name):

RankAlternativeScore
1Conventional deadliftcompound, barbell — 7
2Barbell Romanian deadliftcompound, barbell — 7
3Chin-upcompound, bodyweight — 6
4Lat pulldowncompound, cable — 6

This list is worth reading honestly. The catalog files the deadlift and the barbell Romanian deadlift under back, so the substitution rule — which scores equipment and category, not movement pattern — puts two hinges ahead of every other row. The single-arm dumbbell row, T-bar row and seated cable row all score 6 and sit at ranks 6–8 on name order, behind the pull-up. If you want a row for a row, pick one of those three; the back count is the same either way.

The short version

Back first, biceps and forearms at 0.5 each, for all four rows. Barbell: 150 s rest, 2.5 kg step, you hold the hinge. Dumbbell: unilateral, L and R rows each counted. T-bar and cable: supported, 2 kg steps. The app's top swaps for the barbell row are hinges because the catalog files them under back — the other rows are one scroll further down. Zyra Workouts is a training log, and this page is a guide to one movement in its catalog. Educational overview only — not medical advice.