Workout Description

Why This Workout Is Medium

The 155/105 lb push jerk is moderately heavy but only 5 reps, allowing most average CrossFitters to cycle it without excessive breakdown. Mountain climbers are low-skill and provide relative active recovery for the upper body. The 10-minute AMRAP creates manageable fatigue accumulation — the short push jerk set prevents true grip/shoulder failure, and the movement pairing doesn't create significant interference. Expect 6-8 rounds for average athletes.

Training Focus

This workout develops the following fitness attributes:

• Stamina (7/10): Repeated push jerks and mountain climbers accumulate significant muscular fatigue across shoulders, triceps, and core. The AMRAP format demands consistent muscular endurance over multiple rounds without rest.
• Power (7/10): Push jerks are inherently explosive, requiring a powerful dip-drive and aggressive hip extension to elevate the bar. The barbell movement is the primary power expression in this workout.
• Endurance (6/10): A 10-minute AMRAP creates a sustained aerobic demand. The combination of barbell cycling and mountain climbers keeps heart rate elevated throughout, requiring solid cardiovascular capacity to maintain output.
• Strength (6/10): 155/105 lb push jerks represent a moderate-to-heavy load requiring real strength to cycle efficiently. Not maximal effort, but heavy enough that fatigue will compromise mechanics as rounds accumulate.
• Speed (6/10): AMRAP format incentivizes fast transitions and efficient cycling. Mountain climbers can be moved through quickly, and minimizing rest between movements and rounds is key to maximizing score.
• Flexibility (4/10): Push jerks require overhead shoulder mobility and hip extension. Mountain climbers demand hip flexor flexibility and core stability. Moderate mobility demands that could limit performance if restricted.

Movements

• Push Jerk
• Mountain Climber

Scaling Options

Weight: Scale push jerk to 115/75 lb for intermediate athletes or 95/65 lb for newer athletes — aim for a load you can confidently cycle for 5 reps unbroken in the first few rounds. Movement substitution: Replace push jerk with push press if the jerk footwork is inconsistent under fatigue, or use a dumbbell push press (35-50/20-35 lb) if barbell cycling is a limiting factor. For mountain climbers, reduce to 8 reps per round if 12 feels like it's eating too much time, or substitute with 10 alternating step-back lunges if wrist or shoulder positioning is uncomfortable. Volume: Newer athletes can reduce to 3 push jerks and 8 mountain climbers to keep the sprint stimulus intact.

Scaling Explanation

Scale the push jerk weight if you cannot perform at least 7-8 unbroken reps at the prescribed load when fresh — the goal is to be cycling 5 reps with minimal hesitation, not grinding through singles by round 3. If your jerk footwork is inconsistent or you're pressing out overhead, drop to a push press to prioritize safe overhead mechanics over the specific movement pattern. Technique always wins over load in a fatiguing AMRAP. The target stimulus is continuous movement with short, strategic breaks — if you're resting more than 15-20 seconds between movements, the weight is too heavy. Prioritize intensity and movement quality over Rx status. Athletes should be breathing hard but never feel like they're in danger of a failed rep overhead.

Intended Stimulus

This is a sprint-style AMRAP designed to be completed in a moderate time domain of 10 minutes with high intensity throughout. The combination of a moderately heavy barbell movement with a low-skill bodyweight movement creates a short burst power demand — you should be working at 85-90% effort, feeling the burn in your shoulders and legs while keeping transitions sharp. The primary challenge is strength-endurance on the push jerk: can you maintain crisp technique under fatigue as the rounds accumulate? Expect 6-10+ rounds for well-conditioned athletes.

Coach Insight

The push jerk is the governor of this workout — respect it. Start with sets of 5 unbroken for the first 3-4 rounds, then be willing to break into 3+2 if your dip-drive starts to feel sloppy. The mountain climbers are your active recovery — keep a tight plank, drive knees to chest with control, and use this movement to let your shoulders breathe before picking the bar back up. Avoid the common mistake of rushing the mountain climbers with a sagging hips or bouncing core, which will cost you energy and stability. Transition time is critical — set the bar down with intention, drop immediately to the floor, and get right back up. Don't stand around. Key cues for the push jerk: vertical dip, aggressive hip extension, punch under the bar, lock out overhead before standing. Avoid pressing out at the top — that's a sign the weight is too heavy or fatigue is setting in.

Benchmark Notes

A 10-minute AMRAP of 5 push jerks at 155/105 lb and 12 mountain climbers. 155 lb is about 70% of an average athlete's jerk. L5 (8.75-10.25 rounds) takes about a minute a round. Elite athletes hold about 25 seconds a round (21+).

Modality Profile

Two movements: Push Jerk (Weightlifting - barbell with external load) and Mountain Climber (Gymnastics - bodyweight movement). 1 gymnastics + 1 weightlifting = 50/50 split.

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