BOSU Froggers
An explosive frogger, hopping the feet from a plank up toward the hands on the BOSU, blending cardio with hip mobility and core control.
Level: Intermediate
Primary: Cardio
Secondary: Abs Glutes Quads Shoulder
Movement: Compound
Tags: Balance / Stability Explosive
Type: Anaerobic Intervals (HIIT / Bootcamp / Circuit) Plyometric
Equipment: Balance Trainer
Target muscles
Froggers are a conditioning movement, so the cardiovascular system carries the load while the legs and core do the mechanical work. The quads and glutes fire to hop the feet forward and back; the hip adductors and flexors open the knees out wide; and the shoulders and trunk stabilise the plank on the unstable dome between hops. Expect the heart rate to climb fast once you string reps together.
How to perform
Setup
Set the BOSU dome-side up (flat side on the floor) and grip the edges of the dome or the platform base, then step back into a tall plank with a braced trunk and a neutral spine. Set the shoulders over the hands.
Execution
From the plank, hop both feet forward and wide so they land outside your hands in a low frog squat, hips dropping between the knees. Pause for an instant in the deep position, then hop the feet back to the plank with control. Keep the core tight so the hips don't pike on the way out or sag on the way back. Move at a steady, repeatable rhythm rather than thrashing — the dome punishes a loose landing.
Common mistakes
- Piking the hips high instead of dropping them between the knees at the front.
- Letting the lower back sag in the plank as fatigue sets in.
- Landing the feet with stiff, collapsing knees rather than absorbing softly.
- Letting the dome rock because the hands aren't pressing down evenly.
Progressions and regressions
Regress by stepping the feet up one at a time instead of hopping, or by doing froggers on the floor. Progress by adding a push-up at the plank, increasing the hop speed in timed intervals, or finishing each rep with a small jump out of the frog squat.
Programming notes
Best used in a circuit or as a finisher — 30-45 second intervals or sets of 12-16 reps. It blends mobility, power and conditioning, so it fits bootcamp-style sessions well. Skip it on days when you need legs fresh for heavy squatting, since the repeated hopping pre-fatigues the quads.
