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Isolation

Single-Leg RDL

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

Muscle contribution per set

Hamstrings1
Glutes.50
Core.25
Forearms.15
Erectors.15

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

4down
0pause
1up
0squeeze

Unilateral RDL with extended eccentric; builds hamstring/glute strength, balance, and addresses imbalances.

Hinge from hips, neutral spine; feel stretch in working hamstring.

Derived from tempo research on this movement class — Schoenfeld BJ, Ogborn DI, Krieger JW; Wilk M, Zając A, Tufano JJ.

How Forge progresses it

Progresses by load in +0.5kg steps. Isolation work is where the honest-volume ledger pays off — compounds alone don't cover it.

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.