TAKEN-RACK SWAP · 100% MUSCLE OVERLAP

Box jumps vs Jump Squat

FR : Box jumps ↔ Jump Squat

Swapping Box jumps (Bodyweight) for Jump Squat (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
Bodyweight → 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 Box jumps for Jump Squat.

Muscle Group Box jumps Jump Squat Leverage Shift
Quadriceps Primary (38%) Primary (38%) Matched
Glutes (Gluteus Maximus / Medius) Primary (28%) Primary (28%) Matched
Hip Adductors Secondary (12%) Secondary (12%) Matched
Lower Back (Spinal Erectors) Secondary (10%) Secondary (10%) Matched
Hamstrings Secondary (7%) Secondary (7%) Matched
Abdominals & Trunk Bracing Secondary (5%) Secondary (5%) Matched

Load & Volume Conversion: Box jumps → Jump Squat

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

Supporting Sports-Science Literature

Study Title Lead Author & Year Verified Link
Hip thrust and back squat training elicit similar gluteus muscle hypertrophy and transfer similarly to the deadlift. Plotkin (2023) PubMed 37461495 ↗
Hip thrust and back squat training elicit similar gluteus muscle hypertrophy and transfer similarly to the deadlift. Plotkin (2023) PubMed 37877099 ↗
Progressive overload without progressing load? The effects of load or repetition progression on muscular adaptations. Plotkin (2022) PubMed 36199287 ↗
An electromyographic analysis of sumo and conventional style deadlifts. Escamilla (2002) PubMed 11932579 ↗

Related Biomechanical Swaps