The single leg drop jump is a plyometric drill performed by stepping off a low box onto one foot and rebounding straight into a vertical jump, training the quads and calves. The drop is the point: you land already loaded, so the leg absorbs the fall and reverses it before the tendons give the energy back. That reversal happens in a fraction of a second, which a squat jump from the floor cannot teach. On one leg the load doubles and the hip must also stop the knee drifting in. Coaches use it late in speed and jump work.
What Muscles Does the Single Leg Drop Jump Work?
- Primary: Quadriceps, gluteus maximus
- Secondary: Gastrocnemius and soleus (calves), hamstrings
- Tertiary: Gluteus medius (side glute), tibialis anterior, erector spinae
How Do You Set Up for the Single Leg Drop Jump?
Set a box no higher than knee height and clear a landing space in front of it. Stand on top on one foot, toes near the front edge, with the free leg bent behind you and the hands loose at your sides. Push the chest up, brace the abs and set the knee of the standing leg over the middle of the foot. Fix your eyes on a point ahead, not on the floor.
How Do You Perform the Single Leg Drop Jump?
- Step off the box with the free leg, dropping straight down rather than jumping out.
- Land on the same single foot you stood on, forefoot first, then the heel, with the knee and hip bending to absorb the drop.
- Stop the descent short at roughly a quarter squat; the shin stays over the foot and the knee tracks the toes.
- Reverse instantly and drive through the whole foot into a vertical jump, arms swinging up.
- Land the jump softly on the same leg, bending the knee and hip again to soak up the contact.
- Stand up, step back onto the box and reset the stance before the next drop.
What Are the Key Form Cues?
- Hit the floor quiet: a loud landing means the ankle and knee took the drop stiff, so let both bend the instant the foot touches.
- Think off the floor, not up: the goal is the shortest contact you can hold, so plan the rebound while you are still falling.
- Keep the free leg tucked behind the hip so it cannot swing and steal the drive.
- Hold the arms back on the drop, then throw them up as the foot leaves.
- Keep the standing hip square; if the pelvis dips on landing, the set is done.
What Are the Most Common Mistakes?
- Using a box that is too tall: the landing force outruns what one leg can reverse, so start at mid-shin height and only raise it when contact stays short.
- Letting the knee collapse inward on the landing: valgus at the knee under a single-leg drop loads the ligaments, so brace the outside glute and keep the kneecap over the second toe.
- Sinking into a deep squat before jumping: the stretch reflex is spent and the rep becomes a slow single-leg jump, so cut the depth to a quarter.
- Jumping off the box rather than stepping off: this adds flight time and force before the working leg is ready.
- Chasing reps once contacts get slow and heavy: quality is the whole stimulus, so stop the set when landings lengthen.
What Are the Best Single Leg Drop Jump Variations?
- Two-leg drop jump: both feet share the landing, the regression to learn the reversal.
- Single leg drop landing: step off and stick the landing with no rebound, teaching the absorption alone.
- Lateral drop jump: rebound sideways instead of up, loading the hip in the frontal plane.
- Drop jump to a second box: rebound onto a low box to shorten the landing on the far side.
- Single-leg box jump: jump up onto the box from the floor, concentric work with a soft landing.
How Do You Progress the Single Leg Drop Jump?
- Raise the box by 2 to 4 inches once every contact is quiet and short at the current height.
- Build from 3 reps per leg up to 5; sets past 6 reps stop being plyometric.
- Add a set at a time up to 4 sets per leg across several weeks.
- Cut ground contact time rather than adding height once the box is at knee level.
How Should You Program the Single Leg Drop Jump?
Place the single leg drop jump early in the session, after a thorough warm-up and before heavylegwork, never after it. Train it 1 to 2 times per week for 3 to 4 sets of 3 to 5 reps per leg, resting 90 seconds to 2 minutes so each drop is fresh. Pair it with heavy split squats, which build the strength this drill converts into speed.