5 minute AMRAP
The Boomerang
Cardio capacity · Engine Room · intensity 3 of 5
The workout
As many rounds as possible in 5 minutes of:
Overview
The Boomerang is 5 broad jumps and 20 high knees. The work moves through the quads and the full body instead of sitting on one muscle.
Muscles worked
Energy systems
These are overlapping contributions. This workout is not assigned to one energy system.
- Glycolytic: High
- Oxidative: Moderate
- Neuromuscular: Low
Training effect
Immediate demand
5 minutes, intensity 3 of 5. Today the limiter is 20 high knees.
Intended stimulus
The style is built so breathing and rhythm, not one muscle, are what the round keeps asking for. On this workout that is 5 broad jumps and 20 high knees.
Repeated practice
Repeat the same workout and compare the score. What can change over weeks is how long that pace lasts. One time through does not produce that change.
Body-composition context
Body weight changes with the rest of how you eat and train. This workout is one piece of work on one day.
Expected feel
20 high knees is where the round gets hard. The other movements still have to be finished after it.
Pacing
Explode forward, stay low on the backpedal. This spikes the heart rate faster than running in place.
20 high knees is where the round gets long. That set is where a planned break belongs. If that set falls apart, shorten the broad jumps on the next round rather than rushing it.
The movements
Broad Jumps (With backpedal return)
For an AMRAP, do not aim for maximum distance on every jump. Aim for a consistent, sustainable 4-5 foot bound that allows for rapid turnarounds.
What not to do. Landing stiff-legged rather than sinking into a partial squat.
High Knees
Land lightly on the balls of your feet. If you are stomping flat-footed, you are destroying your momentum and your knees.
What not to do. Leaning back to swing the knees higher instead of keeping the torso stacked.
Why these movements
The work moves through the quads and the full body instead of sitting on one muscle.
Scaling
Keep the round short enough to repeat. Drop reps so you can stay moving, rather than resting the round into a different workout.
Broad Jumps (With backpedal return)
- Step instead of jump. Same pattern, same range, no flight. Keeps the pace without the landing.
- Lower and slower. Keep the jump but cut the height and take the landing softly.
High Knees
- Low impact. Keep one foot down throughout — march the pattern instead of running it.
- Slower cadence. Same movement, fewer beats per minute. Cadence is the dial, not the shape.
Mistakes and who it is for
- Opening the broad jumps at a sprint makes the high knees the piece that falls apart.
- Resting until you feel fresh between movements removes the point of keeping them in one round.
- Letting 20 high knees fail before you break it is how the next round gets longer.
Suited to someone who wants 5 minutes through Broad Jumps (With backpedal return), High Knees.
Scoring and progression
Work through the movements in the order listed, then start the next round. Your score is the number of complete rounds plus any reps of the round you were partway through when the clock hit zero — written as rounds plus reps, so seven full rounds and twelve reps is7+12.
Progression is repeating this workout and comparing that score. The page does not promise a change from one time through.
Related workouts
- The Cruiser
Same quads, longer clock
- The Hemodynamic
Same quads, longer clock
- The Turbine
Same quads, same clock
Run it with friends
The Boomerang runs on a shared countdown: share a rally link, everyone gets the same 5-minute clock, and the leaderboard updates as people log rounds.