Smith Single-Leg Split Squat

🎯 Quadriceps🏋️ MachineBeginnerCompoundCalves (2°)Glutes (2°)Hamstrings (2°)

How to do the smith single-leg split squat

  1. To begin, place a flat bench 2-3 feet behind the smith machine. Then, set the bar on the height that best matches your height. Once the correct height is chosen and the bar is loaded, step under the bar and place the back of your shoulders (slightly below the neck) across it.
  2. Hold on to the bar using both arms at each side (palms facing forward), unlock it and lift it off the rack by first pushing with your legs and at the same time straightening your torso.
  3. Position your legs by placing one foot slightly forward under the bar and extending your other leg back and place the top of your foot on the bench. This will be your starting position
  4. Begin to slowly lower the bar by bending the knee as you maintain a straight posture with the head up. Continue down until the angle between the upper leg and the calf becomes slightly less than 90-degrees (which is the point in which the upper legs are below parallel to the floor). Inhale as you perform this portion of the movement. Tip: If you performed the exercise correctly, the front of the knee should make an imaginary straight line with the toes that is perpendicular to the front. If your knee is past that imaginary line (if it is past your toes) then you are placing undue stress on the knee and the exercise has been performed incorrectly.
  5. Begin to raise the bar as you exhale by pushing the floor with the heel of your foot mainly as you straighten your leg again and go back to the starting position.
  6. Repeat for the recommended amount of repetitions.
  7. Switch legs and repeat the movement.

Muscles worked

The prime movers are the quadriceps across the front of the thigh, which straighten the knee and, just as importantly, control it on the way back down.

Because more than one joint is moving, the work does not stay in one place: the calves control the ankle and hold the heel position; the glutes finish hip extension; the hamstrings assist hip extension and slow the knee down.

Every exercise for:QuadricepsCalvesGlutesHamstrings

How this movement works

The working muscles shorten as they drive the load away from you, and more than one joint changes angle to do it. Load spreads down a chain instead of sitting on one muscle, which is why a compound push handles more weight than any single-joint alternative — and why joint position, not the muscle, is usually what fails first.

It is filed under strength: produce force against resistance for a countable number of repetitions, and progress the resistance over time.

What you need

The machine fixes the path, removing the balance demand and letting you train close to failure without a spotter. The cost is the stabilising work a free weight would have made you do.

Every exercise using:Machine

These train the quadriceps too, using equipment this one does not:

Difficulty

Listed at beginner level: the pattern is simple enough to pick up without coaching, and a position that goes wrong mid-set is obvious enough to correct on the next repetition.

Of the 173 quadriceps exercises in this database, 70 are listed at beginner level.

Related exercises

Photos: free-exercise-db — public domain (Unlicense) Full attribution →

ⓘ Informational only — not a substitute for professional fitness or medical advice.