EZ bar Skullcrusher vs Dumbbell Overhead triceps extension
Swapping EZ bar Skullcrusher (Ez) for Dumbbell Overhead triceps extension (Dumbbell) retains 100% overlap; expect independent unilateral stabilization. Compare exact 17-muscle fractional recruitment before swapping equipment mid-session.
Side-by-Side 17-Muscle Recruitment Delta
How primary mover (1.0× set) and synergist (0.5× set) allocation changes when swapping EZ bar Skullcrusher for Dumbbell Overhead triceps extension.
| Muscle Group | EZ bar Skullcrusher | Dumbbell Overhead triceps extension | Leverage Shift |
|---|---|---|---|
| Triceps Brachii | Primary (100%) | Primary (100%) | Matched |
Load & Volume Conversion: EZ bar Skullcrusher → Dumbbell Overhead triceps extension
Worked weight heuristic: a 70 kg set on EZ bar Skullcrusher (Ez) maps roughly to 38 kg per hand on Dumbbell Overhead triceps extension (Dumbbell; 2 kg jumps, curve: extended end-range stretch with neutral wrist path). Calibrate set 1 at RPE 8 so e1RM history for EZ bar Skullcrusher remains unskewed. Zero anatomical muscles are dropped between EZ bar Skullcrusher and Dumbbell Overhead triceps extension; 1:1 weekly set volume carries straight across.
Supporting Sports-Science Literature
| Study Title | Lead Author & Year | Verified Link |
|---|---|---|
| An Electromyographic Analysis of Lateral Raise Variations and Frontal Raise in Competitive Bodybuilders. | Coratella (2020) | PubMed 32824894 ↗ |
| Front vs Back and Barbell vs Machine Overhead Press: An Electromyographic Analysis and Implications For Resistance Training. | Coratella (2022) | PubMed 35936912 ↗ |
| Triceps brachii hypertrophy is substantially greater after elbow extension training performed in the overhead versus neutral arm position. | Maeo (2023) | PubMed 35819335 ↗ |
| Less time, same gains: Comparison of superset vs. traditional set training on muscular adaptations | Burke (2025) | DOI ↗ |