Dumbbell Row vs Barbell Pendlay Row
FR : Dumbbell Row ↔ Barbell Pendlay Row
Swapping Dumbbell Row (Dumbbell) for Barbell Pendlay Row (Barbell) retains 100% overlap; expect bilateral free-bar coordination. Compare exact 17-muscle fractional recruitment before swapping equipment mid-session.
Weighted Muscle Overlap
100%
Sum of min(coef A, coef B)
Primary Equipment
Dumbbell → Barbell
Same rep/load measurement family
Load Transfer Protocol
Target RPE 7.5–8.5
Never assume 1:1 kg across leverages
Side-by-Side 17-Muscle Recruitment Delta
How primary mover (1.0× set) and synergist (0.5× set) allocation changes when swapping Dumbbell Row for Barbell Pendlay Row.
| Muscle Group | Dumbbell Row | Barbell Pendlay Row | Leverage Shift |
|---|---|---|---|
| Upper Back (Rhomboids / Mid-Traps) | Primary (32%) | Primary (32%) | Matched |
| Lats (Latissimus Dorsi) | Primary (26%) | Primary (26%) | Matched |
| Biceps Brachii & Brachialis | Secondary (14%) | Secondary (14%) | Matched |
| Lower Back (Spinal Erectors) | Secondary (12%) | Secondary (12%) | Matched |
| Shoulders (Deltoids) | Secondary (8%) | Secondary (8%) | Matched |
| Forearms & Grip | Secondary (8%) | Secondary (8%) | Matched |
Load & Volume Conversion: Dumbbell Row → Barbell Pendlay Row
Worked weight heuristic: a 38 kg per hand set on Dumbbell Row (Dumbbell) maps roughly to 57.5 kg on Barbell Pendlay Row (Barbell; 2.5 kg jumps, curve: descending or bell-shaped barbell lever). Calibrate set 1 at RPE 8 so e1RM history for Dumbbell Row remains unskewed. Zero anatomical muscles are dropped between Dumbbell Row and Barbell Pendlay Row; 1:1 weekly set volume carries straight across.
Supporting Sports-Science Literature
| Study Title | Lead Author & Year | Verified Link |
|---|---|---|
| Quantifying 'normal' shoulder muscle activity during abduction. | Wickham (2010) | PubMed 19625195 ↗ |
| Effects of body position and loading modality on muscle activity and strength in shoulder presses. | Saeterbakken (2013) | PubMed 23096062 ↗ |
| A comparison of muscle activity and 1-RM strength of three chest-press exercises with different stability requirements. | Saeterbakken (2011) | PubMed 21225489 ↗ |
| Front vs Back and Barbell vs Machine Overhead Press: An Electromyographic Analysis and Implications For Resistance Training. | Coratella (2022) | PubMed 35936912 ↗ |