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Accessory compound

Single-Leg Hip Thrust

Trains glutes first, with real work landing on hamstrings, core.

Muscle contribution per set

Glutes1
Hamstrings.30
Core.25

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
1squeeze

Unilateral hip thrust; tempo + top pause maximises glute work and addresses imbalances.

Drive through heel of working leg; keep hips level.

Derived from tempo research on this movement class — Wilk M, Zając A, Tufano JJ.

How Forge progresses it

Progresses by load in +1kg steps. Accessories build the muscle that keeps the main lifts moving.

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.