Workout Description

Why This Workout Is Medium

This workout combines moderate volume with light-moderate loads across 4 sets with 2-minute rest periods. Double unders demand skill but 80 reps is manageable for average athletes. The 50/35lb dumbbell bench press is light, and 6 chin-ups is low volume. Built-in 2-minute rest allows adequate recovery between sets. The main challenge is double-under consistency and accumulated shoulder fatigue, but the structure prevents severe fatigue accumulation. Most average CrossFitters complete as prescribed without scaling.

Benchmark Times for Double Chin Trouble

• Elite: <6:00
• Advanced: 7:00-8:15
• Intermediate: 9:45-11:30
• Beginner: >24:00

Training Focus

This workout develops the following fitness attributes:

• Stamina (8/10): High volume of double unders (320 total) and moderate rep ranges in pressing and pulling movements demand significant muscular endurance. Cumulative fatigue across four rounds challenges sustained output.
• Endurance (7/10): Four rounds of double unders and machine work create sustained cardiovascular demand. The 1-minute machine intervals maintain elevated heart rate, testing aerobic capacity across the entire workout duration.
• Speed (7/10): Double unders require fast, rhythmic cycling. Minimal rest between movements (2-minute recovery between sets) demands quick transitions and sustained movement velocity throughout four rounds.
• Power (6/10): Double unders demand explosive calf and ankle power for rapid cycling. Machine work and pressing movements are less explosive, creating mixed power stimulus throughout the workout.
• Strength (5/10): Dumbbell bench press with moderate loads (50/35 lbs) and chin-ups provide strength stimulus, but rep ranges and format prioritize muscular endurance over maximal force production.
• Flexibility (3/10): Double unders, bench press, and chin-ups require basic shoulder and hip mobility. No extreme range of motion demands; primarily standard CrossFit movement positions.

Movements

• Strict Chin-Up
• Dumbbell Bench Press
• Double-Under

Scaling Options

Double unders: reduce to 60 DUs, or substitute 40 single unders, or 1:00 of jump rope practice. Machine: keep at 1:00 but reduce intensity if needed — this is time-based so no rep change required. DB bench press: reduce to 35/20 lbs, or use a barbell with lighter load, or perform floor press if no bench is available. Chin ups: reduce to 4 reps, substitute banded chin ups, ring rows (body at 45 degrees or more horizontal for difficulty), or jumping chin ups with a slow 3-second negative. Volume modification: reduce to 3 sets if 4 rounds feels unmanageable while maintaining quality.

Scaling Explanation

Scale if you cannot complete 50+ double unders unbroken when fresh, cannot perform 6 chin ups unbroken with full range of motion, or if the DB bench press requires more than 2 breaks per set. The goal is to keep each working set under 6-7 minutes and feel genuinely challenged but not destroyed — you should be able to repeat similar output in all 4 rounds. Prioritize technique over load, especially on chin ups where athletes commonly cut range of motion when tired. If an athlete is newer to double unders, substitute single unders or machine time to preserve the cardio stimulus and avoid spending the entire set tripping on the rope.

Intended Stimulus

Moderate-intensity cyclical work lasting roughly 4-7 minutes per set, with structured rest to maintain quality across all 4 rounds. This is a hard sustained effort — not a sprint, but not a grind either. The combination of cardio (double unders or machine), upper body push (DB bench), and upper body pull (chin ups) creates a balanced stimulus targeting muscular endurance and aerobic capacity. The 2-minute rest is intentional — use it to recover enough to repeat the effort with consistent output. Primary challenge is managing fatigue across the upper body while keeping the cardio crisp.

Coach Insight

Attack the double unders or machine with controlled intensity — don't blow up here, as the bench and chin ups will expose any early redlining. For double unders, find a rhythm immediately; if you trip, reset fast and stay calm. On the machine, aim for a consistent pace you can hold all 4 rounds — not your 1-minute max effort. DB bench press at 50/35 should be challenging but completable in 1-2 sets; set up quickly after the cardio and don't let the bench become a rest. Chin ups (palms facing you) allow a strong bicep contribution — use a controlled pull and full extension at the bottom. Common mistakes: going too hard on the machine in round 1, resting too long between movements within the set, and losing chin-up range of motion as fatigue builds. Aim to keep transitions under 15 seconds between movements.

Benchmark Notes

Double unders and chin-up capacity are the primary limiters across 4 sets; the 2-min rest is built in but DU skill and grip fatigue compound each round. L5 (~12:30 total) assumes moderate DU consistency (~60-90s per set), steady DB bench, and unbroken or 1-break chin-ups with manageable transitions.

Modality Profile

Double-Under is a gymnastics movement (bodyweight jump rope skill). Dumbbell Bench Press and Strict Chin-Up are split: Strict Chin-Up is gymnastics (bodyweight), Dumbbell Bench Press is weightlifting (external load). Result: 2 movements out of 3 are weightlifting (67%), 1 out of 3 is gymnastics (33%).