10 minute AMRAP
Rhythmic Fire
Cardio capacity · Engine Room · intensity 3 of 5
The workout
As many rounds as possible in 10 minutes of:
Overview
Rhythmic Fire is 10 combat sprawls and 20 jumping jacks. The round is 10 combat sprawls, so that piece is the whole clock.
Muscles worked
Full body
Energy systems
These are overlapping contributions. This workout is not assigned to one energy system.
- Glycolytic: Moderate
- Oxidative: High
- Neuromuscular: Low
Training effect
Immediate demand
10 minutes, intensity 3 of 5. Today the limiter is 20 jumping jacks.
Intended stimulus
The same capacity work, with movements you can repeat for the whole clock. On this workout that is 10 combat sprawls and 20 jumping jacks.
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 jumping jacks is where the round gets hard. The other movements still have to be finished after it.
Pacing
Use the jumping jacks strictly to control your breathing before the next drop.
20 jumping jacks is where the round gets long. That set is where a planned break belongs. If that set falls apart, shorten the combat sprawls on the next round rather than rushing it.
The movements
Combat Sprawls
You must land with your entire foot completely flat on the mat when returning from the plank. Landing on your toes in this wide stance places severe shearing force on the knee capsule and kills your ability to rebound.
What not to do. Landing the feet inside the hands, leaving no room to lift the chest.
Jumping Jacks
Use this movement for active recovery. When paired with burpees or mountain climbers, the jumping jack is your opportunity to catch your breath.
What not to do. Bending the elbows so the hands never meet overhead.
Why these movements
The round is 10 combat sprawls, so that piece is the whole clock.
Scaling
Keep the round short enough to repeat. Drop reps so you can stay moving, rather than resting the round into a different workout.
Combat Sprawls
- Step the feet. Step back and step in instead of jumping. Same shape, no impact.
- Hands elevated. Hands on a bench or step so the floor never comes all the way up to you.
- No jump at the top. Stand tall and reach instead of leaving the floor.
Jumping Jacks
- 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 combat sprawls at a sprint makes the jumping jacks the piece that falls apart.
- Resting until you feel fresh between movements removes the point of keeping them in one round.
- Letting 20 jumping jacks fail before you break it is how the next round gets longer.
Suited to someone who wants 10 minutes through Combat Sprawls, Jumping Jacks.
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
- Systemic Flush
Similar movement pattern
- The Cruiser
Similar movement pattern
- The Escalator
Similar movement pattern
Run it with friends
Rhythmic Fire runs on a shared countdown: share a rally link, everyone gets the same 10-minute clock, and the leaderboard updates as people log rounds.