Workout Description

21-15-9 Reps for Time Air Squats Push-Ups

Why This Workout Is Medium

A fast, simple bodyweight couplet with moderate total volume (90 reps). Movement complexity is low, but unbroken push-ups and fast squat cycles elevate intensity. Most intermediate athletes finish between 4-8 minutes, while newer athletes may need 8-12 minutes with breaks and/or scaling.

Benchmark Times for Invisible Fran

  • Elite: <3:00
  • Advanced: 4:00-5:00
  • Intermediate: 6:00-7:00
  • Beginner: >12:00

Training Focus

This workout develops the following fitness attributes:

  • Speed (9/10): Intended as a sprint with short or no breaks, fast transitions, and rapid rep cycling. The best scores come from maintaining speed while controlling push-up fatigue.
  • Stamina (8/10): Moderate-high local muscular endurance requirement, especially in chest, triceps, and quads. Managing fatigue in 45 push-ups while keeping squat cycles fast is the primary limiter for most athletes.
  • Endurance (4/10): Short, high-intensity effort that elevates heart rate quickly, but duration is too brief to be primarily aerobic. Expect heavy breathing without a sustained, long-duration cardio demand.
  • Power (3/10): No heavy or ballistic movements. Some explosive intent in fast squat cycling and crisp push-up lockouts, but overall power demand is modest.
  • Flexibility (2/10): Requires standard ROM: below-parallel squat and full push-up lockout with a neutral spine. Mobility demands are basic and accessible for most athletes.
  • Strength (1/10): No external load and basic bodyweight movements. Strength is not the limiter; the focus is sustaining reps under fatigue rather than overcoming heavy resistance.

Scaling Options

Scale to: Elevated Push-Ups (hands on box/bench) • Knee Push-Ups • Reduce volume to 15-12-9

Scaling Explanation

These options reduce pressing difficulty and/or total reps so athletes can keep fast sets, preserve movement quality, and maintain the intended sprint stimulus.

Intended Stimulus

Fast and punchy. You should push hard from the start, aiming to keep squats unbroken and push-ups in big sets with minimal rest. Breathing will spike, but the main limiter is local muscular endurance in the chest and triceps. Finish feeling breathless with burning arms and legs.

Coach Insight

Pace the push-ups, not the squats. Open with a sustainable big set and quick micro-breaks to avoid failure. The one tip: stop one rep shy of push-up failure—shake it out for 3-5 seconds, then go. Common mistakes: sprinting 21 push-ups unbroken then crashing, shallow squat depth, and long, aimless rest instead of planned quick breaks.

Benchmark Notes

Compare your finish time to the levels. If you’re near 6 minutes, you’re on track for intermediate capacity. Under 4 minutes is advanced. Over 10 minutes suggests scaling push-ups or reducing volume to maintain the intended fast sprint feel.

Modality Profile

Both movements are gymnastics-based bodyweight exercises with no monostructural cardio or external loading. The entire effort is driven by bodyweight strength endurance and cycle speed, making this a pure gymnastics couplet.

Similar Workouts to Invisible Fran

If you enjoy Invisible Fran, you might also like these similar CrossFit WODs:

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These WODs similar to Invisible Fran share comparable training demands, time domains, and movement patterns.

Training Profile

AttributeScoreExplanation
Endurance4/10Short, high-intensity effort that elevates heart rate quickly, but duration is too brief to be primarily aerobic. Expect heavy breathing without a sustained, long-duration cardio demand.
Stamina8/10Moderate-high local muscular endurance requirement, especially in chest, triceps, and quads. Managing fatigue in 45 push-ups while keeping squat cycles fast is the primary limiter for most athletes.
Strength1/10No external load and basic bodyweight movements. Strength is not the limiter; the focus is sustaining reps under fatigue rather than overcoming heavy resistance.
Flexibility2/10Requires standard ROM: below-parallel squat and full push-up lockout with a neutral spine. Mobility demands are basic and accessible for most athletes.
Power3/10No heavy or ballistic movements. Some explosive intent in fast squat cycling and crisp push-up lockouts, but overall power demand is modest.
Speed9/10Intended as a sprint with short or no breaks, fast transitions, and rapid rep cycling. The best scores come from maintaining speed while controlling push-up fatigue.

21-15-9 Reps for Time Air Squats Push-Ups

Difficulty:
Medium
Modality:
G
Stimulus:

Fast and punchy. You should push hard from the start, aiming to keep squats unbroken and push-ups in big sets with minimal rest. Breathing will spike, but the main limiter is local muscular endurance in the chest and triceps. Finish feeling breathless with burning arms and legs.

Insight:

Pace the push-ups, not the squats. Open with a sustainable big set and quick micro-breaks to avoid failure. The one tip: stop one rep shy of push-up failure—shake it out for 3-5 seconds, then go. Common mistakes: sprinting 21 push-ups unbroken then crashing, shallow squat depth, and long, aimless rest instead of planned quick breaks.

Scaling:

Scale to: Elevated Push-Ups (hands on box/bench) • Knee Push-Ups • Reduce volume to 15-12-9

Time Distribution:
4:30Elite
7:30Target
12:00Time Cap
Your Scores:

Training Profile

Performance Levels
L1
L2
L3
L4
L5
L6
L7
L8
L9
L10
RookieNoviceIntermediateAdvancedPro/Elite