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Lower-body compound

Sissy Squat

Trains quads first, with real work landing on core.

Muscle contribution per set

Quads1
Core.20

These are the weights Forge's volume audit actually computes with — deliberately conservative, so compounds don't masquerade as full coverage. A 0.5 means a set counts as half a set for that muscle: meaningful help, not a replacement for direct work.

Tempo

3down
1pause
2up
0squeeze

Quad isolation squat variation; tempo maximises quad stretch and contraction with knee travel over toes.

Lean back slightly; knees track forward over toes, heels may lift.

Derived from tempo research on this movement class — Schoenfeld BJ, Ogborn DI, Krieger JW.

How Forge progresses it

Progresses by load: +2.5kg the session after you earn it. The engine watches your reps and how hard the top set felt before adding.

Swap it for

Same movement pattern, same progression continuity — these are the alternatives the app offers mid-session when a rack is taken or equipment isn't there.

Train with intention. Open Forge — it prescribes the weight, watches the reps, and does this arithmetic for every set you log.