Jump Squat

What is the Jump Squat?

The jump squat turns the squat pattern into an explosive power exercise: you descend into a partial squat and jump as high as you can, then land soft and repeat. It is one of the most accessible ways to train lower-body power because it needs no equipment, and it carries over directly to jumping, sprinting, and the speed of a heavy squat off the bottom.

Muscles worked

Primary — Quads

The quads produce the explosive knee extension that drives the jump, trained for speed of contraction rather than time under tension.

Secondary — Glutes, Hamstrings, Calves

The glutes and hamstrings extend the hips to launch the body, and the calves finish the drive through the ankles.

How to perform the Jump Squat

1. Stand with the feet shoulder-width apart and the weight balanced over the mid-foot, hands ready to swing or held lightly at the chest.
2. Descend into a quarter- to half-squat under control, keeping the chest up and the knees tracking over the toes.
3. Reverse hard and jump straight up as high as you can, fully extending the hips, knees, and ankles at the top.
4. Land softly back into the squat position, letting the hips and knees bend to absorb the impact, then reset your balance before the next explosive rep.

Suggested working range: 3–6 reps. Default progression: manual.

Mechanics

A stretch-shortening-cycle movement: a controlled quarter- to half-squat pre-loads the hips and knees, and the immediate reversal into a maximal jump uses that stored elastic energy. Keeping the descent shallow and fast preserves the reflex; sinking slow and deep loses it and turns the rep into a grind.

Form cues

• •Descend only to a quarter- or half-squat and reverse quickly — a slow, deep dip kills the explosive stretch-reflex.
• •Fully extend the hips, knees, and ankles at the top so the whole body drives the jump.
• •Land softly back into the squat, letting the hips and knees bend to absorb the impact before the next rep.

Common mistakes

• •Sinking into a slow, deep squat so the stretch-reflex is lost and the jump becomes a grind.
• •Landing rigid with locked knees instead of absorbing the impact by bending the hips and knees.
• •Letting the knees cave inward on take-off or landing, which leaks power and stresses the knee.
• •Chasing rep count into fatigue, which turns an explosive power drill into sloppy conditioning.

Variations & alternatives

• •Box jump — redirect the same explosion onto a raised platform to remove the hard landing.
• •Broad jump — send the power horizontally for distance, biasing the hips more.
• •Split-squat jump — a single-leg-stance version that adds a balance and unilateral power demand.

Barbell Back Squat

Quads · Barbell

Leg Press

Quads · Machine

Bulgarian Split Squat

Quads · Dumbbell

Goblet Squat

Quads · Dumbbell

Leg Extension

Quads · Machine

Programming: sets, reps & when to use it

Program it as low-volume power work: 3–5 sets of 3–6 explosive reps, done fresh and early, before or separate from your heavy strength training. It builds no muscle size and earns no rank credit — the goal is power and rate of force development. Stop each set while the jumps are still sharp; grinding fatigued reps trains the wrong quality and stresses the joints.

Frequently asked questions