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Cross-Over Hop

The cross-over hop is a single-leg reactive drill where you hop forward on one leg while crossing over a center line each time, a pattern borrowed from return-to-sport testing. Staying on one leg while changing direction hammers the glute medius and the ankle stabilizers to keep the knee from collapsing. It is an advanced choice for exposing single-leg control gaps and building lateral, single-limb power.

Equipment
Body Weight
Body part
Glutes, Quads
Type
Balance, Plyometric
Browse by movement
Gait Drill
Muscles worked
Target
Gluteus Maximus, Gluteus Medius, Vastus Lateralis
Secondary
Rectus Femoris, Biceps Femoris, Gastrocnemius Lateral Head, Gastrocnemius Medial Head
Tertiary
Semitendinosus, Soleus Gastrocnemius, Fibularis Longus

How to do it

  1. 1

    Stand on one leg to the side of a straight line on the floor.

  2. 2

    Hop forward and diagonally across the line, landing on the same leg.

  3. 3

    Absorb the landing with a soft knee tracking over the foot.

  4. 4

    Hop forward and diagonally back across the line, again on the same leg.

  5. 5

    Continue crossing side to side while traveling up the line.

  6. 6

    Complete the set on one leg, then repeat on the other.

Tips

  • Keep the landing knee stacked over the foot; guarding against inward collapse is the whole point.
  • Start with small crossovers and short distances before chasing bigger hops.
  • Compare the two legs honestly and give the weaker side extra attention.

Variations

Common mistakes

  • The free foot touches down to save each landing, and the moment it does this is no longer a single-leg drill. If it keeps happening, shorten the hops until it stops.
  • The pelvis rotates in the air so you land facing across the line rather than up it, which loads the knee in a twist instead of straight ahead.
  • Hops cross the line but stop traveling forward, so you end up hopping side to side on the spot. Each hop should gain ground up the line as well as change sides.
  • The landing gets rushed into the next hop before the knee has settled, so the control you came here to build never actually happens. Hold each landing for a beat while the pattern is new.
  • Arms get clamped to the sides for balance, and with no counter-swing the trunk does the balancing instead, which shows up as a wobble at the hip on every contact.

Frequently asked

What is a sensible number of cross-over hops to start with?
Three sets of five or six hops per leg, resting a minute between sets, and end the set the instant the free foot touches down. The prerequisite is a controlled single-leg landing: you should be able to hop forward on one leg and hold the landing still for two seconds, on both legs, before you add the crossover. Build by crossing further from the line rather than by adding reps, and keep the two legs on the same numbers so the comparison between them stays meaningful.
How do I make the cross-over hop easier or harder?
To make it easier, stick every landing and reset before the next hop, or run the pattern on two feet first so you learn the angle without the balance demand; a narrower crossover also asks far less of the hip and ankle. To make it harder, cross further out from the line, cut the ground time so the hops chain together, or count how far up the line six hops take you and try to beat that. A small obstacle over the line is a progression, but only once the landings are silent.
What is the cross-over hop for, and when should it be avoided?
It is a single-leg control drill borrowed from return-to-sport testing: the crossover forces the hip and ankle to stop the knee falling inward while you are still traveling forward, and comparing your two legs tells you plenty. Field and court athletes and people at the end of a rehab plan get real value from it. It is the wrong choice with a knee or ankle that is sore, swollen or recently injured, and if you are working back from a ligament injury the timing should come from your clinician, not from a drill list. It does nothing for conditioning, so keep the sets short.

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