Workout Description

Why This Workout Is Very Hard

This 28-minute AMRAP combines four demanding movements per round: running, box jumps, and power snatches (135/95) create compounding leg and posterior chain fatigue, while 20 burpees per round is brutally high volume that will crush pace. The cash-out of 146 double-unders after 28 minutes of accumulated fatigue adds a skill-under-exhaustion challenge. Multiple limiting factors hit simultaneously across a long time domain.

Training Focus

This workout develops the following fitness attributes:

• Endurance (8/10): A 28-minute AMRAP with repeated running intervals creates a sustained cardiovascular demand. The continuous cycling of run, jumps, snatches, and burpees keeps heart rate elevated throughout the entire workout.
• Stamina (8/10): High-rep burpees (20 per round) and box jumps (12 per round) accumulate significant muscular endurance demands over multiple rounds, plus the double-under cash-out adds additional leg and shoulder stamina stress.
• Power (7/10): Box jumps and power snatches are inherently explosive movements requiring rapid force production. Burpees also demand a powerful hip extension. Multiple explosive movements per round make power a primary demand.
• Speed (6/10): AMRAP format rewards efficient transitions and cycling speed. Burpees and box jumps must be cycled quickly to maximize rounds. The cash-out double-unders further reward fast, rhythmic coordination and speed.
• Strength (4/10): Power snatches at 135/95 lb represent a moderate load requiring real strength, but only 3 reps per round limits maximal strength expression. The remaining movements are bodyweight-dominant.
• Flexibility (4/10): Power snatches demand overhead mobility and hip flexibility. Box jumps require hip flexor range of motion. Overall moderate mobility demands across multiple planes of movement throughout the workout.

Movements

• Power Snatch
• Burpee
• Run
• Box Jump
• Double-Under

Scaling Options

Weight: Reduce power snatch to 95/65 lb for intermediate athletes, or 75/55 lb for beginners — the load should allow unbroken sets of 3 with good mechanics every round. Box jumps: Scale to 20/16 inch box, or substitute step-ups at the same height for athletes with knee concerns or limited jumping ability. Run: Shorten to 150m or substitute a 200m row or 400m bike erg if running is limited. Burpees: Reduce to 12-15 burpees per round for athletes who struggle to maintain movement quality, or substitute no-push-up burpees (step out, step in) for those with shoulder limitations. Double-unders cash-out: Scale to 73 double-unders (50% volume), or substitute 292 single-unders, or 73 penguin jumps for athletes still developing the skill.

Scaling Explanation

Scale the snatch weight if you cannot confidently perform 3 unbroken reps with sound mechanics when fresh — in a 28-minute AMRAP, technique will degrade significantly, and a heavy power snatch with a fatigued back is a recipe for injury. Scale burpee volume if you find yourself stopping completely or resting more than 5 seconds between reps by round 2 — the goal is continuous movement, not max reps per round. Scale box jump height or switch to step-ups if you have any Achilles, knee, or ankle concerns, or if you are newer to high-rep box jumps under fatigue. The priority in this workout is intensity over load — a lighter snatch done safely and quickly every round serves the stimulus far better than grinding through heavy reps with a compromised position. Athletes should feel like they are working hard but in control throughout; if you are redlining by minute 10, you went out too fast or are Rx'ing beyond your current capacity.

Intended Stimulus

This is a long-duration grind — expect 28 minutes of sustained aerobic output with periodic spikes in intensity. The energy demand is a long steady engine with short bursts of power on the snatches and box jumps. The primary challenge is mental: managing fatigue across a long time domain while keeping movement quality intact on a technically demanding lift (power snatch) as the body accumulates fatigue. The run and burpees serve as the aerobic backbone, while the snatches and box jumps are the intensity spikes that will test your ability to stay composed under duress.

Coach Insight

Pace the run conservatively — this is not a sprint workout. Aim for a comfortable, conversational effort on the 204m run so you arrive at the box jumps with gas in the tank. Box jumps: use a step-down strategy from round one to protect your Achilles and preserve leg drive for later rounds. Do NOT jump down — the cumulative fatigue over 28 minutes will make this a liability. Power snatches at 135/95 are the anchor movement — 3 reps is intentionally low, so these should be unbroken every round. Focus on a strong hip extension, aggressive shrug, and punching under the bar. Do not rush the setup; a missed snatch costs far more time than a 2-second reset. Burpees are your biggest time sink — find a sustainable rhythm (1 burpee every 3-4 seconds) and never stop moving. Avoid going out hot on burpees in round 1 and dying by round 3. For the cash-out, approach the 146 double-unders with fresh eyes — break them into sets of 30-40 with short rest if needed rather than chasing an unbroken set when fatigued. Target 5+ rounds for competitive athletes, 3-4 rounds for intermediate.

Benchmark Notes

The primary limiters are the 20 burpees per round (time sink ~60-90 sec) and the 135 lb power snatch, which forces breaks at intermediate levels. L5 (~6 rounds) averages roughly 4:30 per round accounting for fatigue accumulation and snatch singles. The cash-out double-unders add a skill tax at the end but don't affect round count scoring.

Modality Profile

5 movements total: Box Jump (G), Burpee (G), Double-Under (G) = 3 Gymnastics; Run (M) = 1 Monostructural; Power Snatch (W) = 1 Weightlifting. Ratios: G=3/5=60%, M=1/5=20%, W=1/5=20%

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