Workout Description

Why This Workout Is Medium

This workout sits firmly in Medium difficulty. The 36kg (79lbs) kettlebell is very light for deadlifts—most average CrossFitters could perform 30 unbroken easily. Knee raises are less demanding than toes-to-bar. While 225 total double unders and 15-20 minute time domain create moderate volume, the movements don't significantly interfere with each other and built-in breaks between rounds allow recovery. The light loading prevents grip or muscular fatigue from accumulating enough to create breakdown. Most average athletes will complete this as prescribed with manageable fatigue.

Benchmark Times for Double Trouble

• Elite: <5:45
• Advanced: 6:30-7:30
• Intermediate: 8:45-10:15
• Beginner: >22:30

Training Focus

This workout develops the following fitness attributes:

• Stamina (8/10): Extremely high total volume of 225 KB deadlifts and 225 double unders taxes grip endurance, posterior chain stamina, and core stamina throughout ascending rounds.
• Endurance (7/10): High-volume double unders combined with continuous work across nine total rounds creates significant cardiovascular demand over an extended duration of 15-25 minutes.
• Speed (5/10): The ascending rep scheme encourages steady pacing rather than sprinting; efficient transitions between movements help minimize time, but sustainable rhythm is key.
• Strength (3/10): The 36kg kettlebell represents moderate loading for most athletes—challenging enough to accumulate fatigue but not approaching maximal strength demands.
• Flexibility (3/10): Knee raises require moderate shoulder and hip mobility, while KB deadlifts demand proper hip hinge mechanics; double unders need basic coordination but minimal flexibility.
• Power (3/10): Double unders contain some explosive ankle and calf power output, but the high cumulative volume shifts focus away from pure power toward endurance.

Movements

• Kettlebell Deadlift
• Double-Under

Scaling Options

Reduce KB to 24-28kg to maintain sets of 15+ reps. Substitute single unders at 3x volume (45-75-105). Scale knee raises to hanging knee tucks, V-ups, or AbMat sit-ups if grip fails. Consider reducing to 2 rounds per section (2-2-2 instead of 3-3-3) while maintaining the ascending structure. More advanced athletes can increase to 44-48kg KB.

Scaling Explanation

Scale if you cannot maintain sets of 10+ double unders consistently or if 36kg KB requires singles after first round. The goal is sustained moderate-high intensity throughout - if you're resting more than 15 seconds between movements, reduce load or volume. Grip will be the primary limiter, so scale knee raises before compromising double under practice. Target completion should still be 15-25 minutes when properly scaled to maintain the intended aerobic and mental conditioning stimulus.

Intended Stimulus

Moderate-duration conditioning piece (15-25 minutes) with ascending volume creating progressive fatigue. Primarily glycolytic with oxidative component. Tests grip endurance, mental resilience, and capacity to maintain output as fatigue accumulates. The ascending ladder format creates both physical and psychological challenge.

Coach Insight

Pacing is critical - treat the first section as a moderate warm-up to preserve energy for rounds 2 and 3. Keep double unders in 1-2 sets maximum (quick resets only). Kettlebell deadlifts should feel light - use them as active recovery and focus on breathing rhythm. Knee raises will become the limiting factor due to grip fatigue - break early (sets of 5-7) before failure. Avoid rushing transitions but keep rest under 10 seconds between movements. The mental game intensifies in round 3 when volume peaks and cumulative fatigue hits.

Benchmark Notes

Primary limiter is double under proficiency and consistency under fatigue. L1 (25min) assumes scaling to singles or frequent breaks on DUs, breaking KB deadlifts into multiple sets, and significant rest. L5 (11min) represents solid DU rhythm with small breaks, steady 1-2 sets on deadlifts per round, and efficient transitions. L10 (5:30) assumes near-unbroken DUs, fast cycling on the moderate KB load (36kg), and minimal rest between movements. Grip endurance and breathing on knee raises become factors in later rounds as volume accumulates.

Modality Profile

Double-Under is a gymnastics movement (bodyweight jump rope skill). Kettlebell Deadlift is a weightlifting movement (external load). Knee Raise is a gymnastics movement (bodyweight). Total: 2 gymnastics movements (67%), 1 weightlifting movement (33%). Rounded to nearest 10%: G: 33, W: 67.