Machine Assisted Pull up — Muscles Worked & RPE Load Guide
Machine Assisted Pull up targets Lats as primary movers (1.0× set credit) alongside Upper Back, Biceps Brachii & Brachialis, Forearms & Grip (0.5× synergist credit). Cam-matched resistance across sticking points.
17-Muscle Fractional Recruitment & Weekly MEV–MRV Landmarks
Each working set ≥ RPE 6 triggers fractional hard-set credit toward Renaissance Periodization / Schoenfeld weekly hypertrophy landmarks.
| Muscle Group | Mechanical Role | Effort Share | Weekly Optimal Band (MEV–MAV) | Frequency & Research |
|---|---|---|---|---|
| Lats (Latissimus Dorsi) | Primary (1.0× set) | 45% | 10–22 sets/wk (MRV 25) | 2–4x / week · Evidence |
| Upper Back (Rhomboids / Mid-Traps) | Secondary (0.5× set) | 25% | 10–20 sets/wk (MRV 24) | 2–4x / week · Evidence |
| Biceps Brachii & Brachialis | Secondary (0.5× set) | 20% | 8–20 sets/wk (MRV 26) | 2–6x / week · Evidence |
| Forearms & Grip | Secondary (0.5× set) | 10% | 4–16 sets/wk (MRV 20) | 2–6x / week · Evidence |
Machine Assisted Pull up Worked Wathan RPE Prescription Table (kg)
Worked kg values computed for Machine Assisted Pull up using a worked 110.0 kg reference 1RM (Machine) rounded to 5 kg machine increments. Mechanics: Externally braced cam track; resistance curve: Cam-matched resistance across sticking points.
| Reps | RPE 9.5 | RPE 9 | RPE 8.5 | RPE 8 | RPE 7 |
|---|---|---|---|---|---|
| 3 reps | 0 kg (86%) | 0 kg (86%) | 0 kg (86%) | 0 kg (82%) | 0 kg (82%) |
| 5 reps | 0 kg (82%) | 0 kg (82%) | 0 kg (82%) | 0 kg (77%) | 0 kg (77%) |
| 8 reps | 0 kg (73%) | 0 kg (73%) | 0 kg (73%) | 0 kg (73%) | 0 kg (68%) |
| 10 reps | 0 kg (73%) | 0 kg (68%) | 0 kg (68%) | 0 kg (68%) | 0 kg (68%) |
| 12 reps | 0 kg (68%) | 0 kg (68%) | 0 kg (68%) | 0 kg (64%) | 0 kg (64%) |
Strong, Hevy & French/English CSV Import Labels
STRUGGL automatically maps these exact workout-tracker strings to canonical Machine Assisted Pull up volume and e1RM records on zero-login Wrapped CSV upload.
Taken-Rack Substitutes & Biomechanical Swaps
Ranked deterministically by weighted primary-muscle overlap inside the same measurement family.
Verified Peer-Reviewed Literature (PubMed & DOI)
| Peer-Reviewed Paper | Author & Journal | External Reference |
|---|---|---|
| Variations in muscle activation levels during traditional latissimus dorsi weight training exercises: An experimental study. | Lehman (2004) · Dynamic medicine : DM | PubMed 15228624 ↗ |
| Effects of grip width on muscle strength and activation in the lat pull-down. | Andersen (2014) · Journal of strength and conditioning research | PubMed 24662157 ↗ |
| Grip width and forearm orientation effects on muscle activity during the lat pull-down. | Lusk (2010) · Journal of strength and conditioning research | PubMed 20543740 ↗ |