TAKEN-RACK SWAP · 100% MUSCLE OVERLAP

Board Press vs Push up / Press up

FR : Board press ↔ Pompe

Swapping Board Press (Barbell) for Push up / Press up (Bodyweight) retains 100% overlap; expect alternative path. Compare exact 17-muscle fractional recruitment before swapping equipment mid-session.

Weighted Muscle Overlap
100%
Sum of min(coef A, coef B)
Primary Equipment
Barbell → Bodyweight
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 Board Press for Push up / Press up.

Muscle Group Board Press Push up / Press up Leverage Shift
Chest (Pectoralis Major) Primary (50%) Primary (50%) Matched
Triceps Brachii Secondary (30%) Secondary (30%) Matched
Shoulders (Deltoids) Secondary (20%) Secondary (20%) Matched

Load & Volume Conversion: Board Press → Push up / Press up

Worked weight heuristic: a 100 kg set on Board Press (Barbell) maps roughly to 70 kg on Push up / Press up (Bodyweight; 2.5 kg jumps, curve: alternative curve). Calibrate set 1 at RPE 8 so e1RM history for Board Press remains unskewed. Zero anatomical muscles are dropped between Board Press and Push up / Press up; 1:1 weekly set volume carries straight across.

Supporting Sports-Science Literature

Study Title Lead Author & Year Verified Link
Influence of bench angle on upper extremity muscular activation during bench press exercise. Lauver (2016) PubMed 25799093 ↗
A comparison of muscle activity and 1-RM strength of three chest-press exercises with different stability requirements. Saeterbakken (2011) PubMed 21225489 ↗
Push-Ups vs. Bench Press Differences in Repetitions and Muscle Activation between Sexes. Alizadeh (2020) PubMed 32390722 ↗
Muscle activity levels in upper-body push exercises with different loads and stability conditions. Calatayud (2014) PubMed 25419894 ↗

Related Biomechanical Swaps