Fysiqal

Isolation · Beginner

Straight-Leg Raise

Isolation isolation exercise using bodyweight.
Movement pattern
Isolation
Difficulty
Beginner
Equipment
Bodyweight
Mechanics
Isolation
Sides
Unilateral
Main plane
Sagittal

Free account. Log your sets of Straight-Leg Raise and each workout shows your best set by estimated 1RM.

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How to do the Straight-Leg Raise

Not yet reviewed — the technique guide for this exercise hasn't been signed off, so it isn't published here yet.

Muscles worked

Primary

Secondary

How the knowledge graph models this movement

Each joint action, with the role and emphasis the graph assigns each muscle. These are qualitative anatomical labels, not measured muscle activation.

  • Hip flexionprimary action

    Iliopsoas (prime mover, high emphasis); Rectus femoris (synergist, high emphasis); Tensor fascia lata (synergist, low emphasis); Sartorius (synergist, low emphasis)

  • Knee extensionsecondary action

    Vastus medialis (stabilizer, high emphasis); Vastus lateralis (stabilizer, high emphasis); Vastus intermedius (stabilizer, high emphasis)

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From the Library

Educational content only — not medical advice. Consult a qualified professional for individual guidance, especially around injury, pregnancy or medical conditions.