Reviewed by Bryan Cortez, MS
The hamstring bends the knee too — curls cover what hinges can't.
Coaching profile
simple machine curl. This page is the practical coaching layer: use it for setup, cues, programming, pain-free adjustments, and substitutions. The complete biomechanics tier list lives on the muscle page.
How the rankings are built →Demonstration
Demonstration production queue
Physique Skool is filming one canonical demonstration per exercise. Until this movement is published, use the setup, execution, common errors, programming, and substitutions below.
Browse Physique Skool on YouTubeAppears in Book 1
Four-Day Standard
Full Body A
Exercise 4 in the session · Seated Leg Curl (or Lying Leg Curl): 3 sets of 10–15 reps.
Four-Day Standard
Lower A
Exercise 4 in the session · Seated Leg Curl (or Lying Leg Curl): 2 sets of 10–15 reps.
Four-Day Standard
Lower B
Exercise 4 in the session · Lying Leg Curl (or Seated Leg Curl): 3 sets of 8–12 reps.
How to do it
No-Fly Zone
under 5 reps (heavy partials cramp more than they build)
Programming
Late
Single-joint, low fatigue — late as a hamstring finisher, or early as a pre-exhaust.
Model — Double
Fallback model — Triple
Double progression: 8→15, then add a pin (or micro-plate) and reset.
Pull, Legs, Lower
If it hurts
Pain is information, not a challenge to push through. Stop the set if pain is sharp, worsening, or changes how you move. These are exercise-selection options, not medical diagnosis or rehabilitation advice.
Work down this list in order. Stop at the first change that removes the pain.
Step 1
Toe position (dorsiflexed vs pointed); foot rotation in/out for medial/lateral bias.
Step 2
Pause and squeeze at the top; slow eccentric; lengthened partials.
Step 3
Seated leg curl (more stretch), Nordic curl, or single-leg curl for imbalances.
Substitutions
Seated leg curl (more stretch), Nordic curl, or single-leg curl for imbalances.
Compare all hamstrings optionsThe Evidence
Isolates the knee-flexion role of the hamstrings. Does NOT train the hip-extension role — pair it with an RDL.
SFR — 2.3
Get the companion workbook, trackers, program files, and community support.