maratoolLunge Sprint
How to do the lunge sprint
- Adjust a bar in a Smith machine to an appropriate height. Position yourself under the bar, racking it across the back of your shoulders. Unrack the bar, and then split your feet, moving one foot forward and one foot back. This will be your starting position.
- Lower your back knee nearly to the ground, flexing the knees and lowering your hips as you do so.
- At the bottom of the descent, immediately reverse direction. Explosively drive through the heel of your front foot with light pressure from your back foot. Jump up and reverse the position of your legs.
- Repeat for the recommended amount of repetitions.
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:
- Lying Prone Quadricepsbody only
- Narrow Stance Squat with Barbellbarbell
- One-Arm Overhead Kettlebell Squatskettlebell
- Pile Squat with Dumbbelldumbbell
- Quadriceps-SMRfoam roll
Difficulty
Listed at intermediate level. It assumes you already own the underlying pattern and can hold position under load — if the position breaks before the target muscle tires, drop back to a beginner variation until it does not.
Of the 173 quadriceps exercises in this database, 62 are listed at intermediate level.
Photos: free-exercise-db — public domain (Unlicense) Full attribution →
ⓘ Informational only — not a substitute for professional fitness or medical advice.