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Short Arc Quad (SAQ) Exercise

Learn how to do the short arc quad (SAQ) exercise with setup, dosage, key cues, common mistakes, and guidance on when to progress or scale back.

KneeLower BodyStrengthLevel 2 — Build ControlBody WeightTable / Bench
Technique

How to Do the Exercise

Setup

Lie on your back with a rolled towel or bolster under the working knee so the knee starts slightly bent.

How to perform it

Tighten the quadriceps and straighten the knee until the leg is fully extended. Pause briefly, then lower the foot slowly while keeping the thigh supported.

Dosage

2 sets, 8–10 repetitions, Tempo 1 second up, 1-second hold, 3 seconds down, Rest 45 seconds

Use it well

What to Focus On

Key cues

  • Keep the thigh supported on the bolster
  • Finish by fully straightening the knee if comfortable
  • Lower the foot slowly

Why use it

Builds quadriceps strength and active knee-extension control through a supported short range.

When to use it

Useful when progressing from isometric quadriceps activation into active knee-extension strengthening.

Common mistakes

  • Lifting the thigh off the support
  • Using momentum to kick the foot upward
  • Dropping the foot quickly on the return
Adjust the challenge

Know When to Progress or Scale Back

Use your movement quality and symptom response to decide whether the current version still fits.

Progress when

  • You can fully straighten the knee without an extension lag
  • The lowering phase stays controlled through the full set
  • Symptoms settle appropriately after the exercise

Scale back if

  • You cannot actively reach the available end range
  • The foot drops or control fades early in the set
  • Pain or swelling remains meaningfully worse afterward
Quick Fit Check

Was This the Right Challenge Today?

Use the same three signals that matter inside Therapeutic Edge recovery plans: how challenging the exercise felt, how well you controlled it, and how your body responded afterward.

Answer after the exercise and, when possible, after you know your later or next-day response. This checks one exercise today; it does not change or save a rehab plan.

Choose your path

This exercise can fit more than one knee-rehab situation. Choose the path that matches why you are using it, then decide whether you want free guidance or a plan that follows you over time.

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