Workout Description

Why This Workout Is Medium

This 13-minute AMRAP combines moderate loads (24kg kettlebell) with fundamental movements and built-in recovery. The 48-rep cycle is sustainable for average athletes—box step-ups and goblet squats are leg-dominant, while hollow rocks and rowing provide active recovery for lower body. The light kettlebell weight and mixed movement pattern prevent severe fatigue accumulation. Most athletes complete 3-4 rounds unbroken, making this accessible but still challenging.

Training Focus

This workout develops the following fitness attributes:

• Stamina (8/10): High-rep kettlebell work and rowing create significant muscular endurance demands. Repeated squats, step-ups, and hollow rocks accumulate fatigue across multiple muscle groups over 13 minutes.
• Endurance (7/10): 13-minute AMRAP with continuous rowing and moderate-intensity movements demands sustained cardiovascular output. The row provides consistent aerobic stimulus throughout the workout duration.
• Speed (6/10): AMRAP format incentivizes quick transitions and steady pacing to maximize rounds. Rowing and kettlebell movements can be cycled relatively quickly, rewarding efficient movement patterns and minimal rest.
• Strength (4/10): 24kg kettlebell provides moderate loading for squats and step-ups, but insufficient for maximal strength development. Hollow rocks and rowing demand minimal strength relative to other domains.
• Flexibility (3/10): Box step-ups and goblet squats require basic hip and ankle mobility. Hollow rocks demand core flexibility but overall ROM demands remain moderate and achievable for most athletes.
• Power (2/10): Movements emphasize controlled tempo rather than explosiveness. Step-ups, goblet squats, and hollow rocks are performed with sustained effort, not rapid cycling or ballistic intent.

Movements

• Box Step-Up
• Kettlebell Goblet Squat
• Hollow Rock
• Row

Scaling Options

Weight: Reduce kettlebell to 16kg for athletes newer to loaded carries and squats, or 20kg as an intermediate option. Movement substitutions: Replace box step ups with step ups to a lower box (14-16 inch) or bodyweight step ups if load is the limiting factor. Sub hollow rocks with hollow holds (10-15 seconds) or bent-knee hollow rocks for athletes still developing midline control. The row can be reduced to 8-10 calories for athletes who struggle to complete the cal target in under 60-70 seconds. Volume: Reduce reps to 10 across all movements for athletes who are newer or managing fatigue, keeping the stimulus consistent without sacrificing movement quality.

Scaling Explanation

Scale the weight if you cannot complete the first set of 12 goblet squats unbroken with good depth and an upright torso, or if the step ups cause you to lose balance or hinge forward excessively. Scale hollow rocks if your lower back lifts off the floor or you cannot maintain a consistent rhythm for at least 8 reps. The goal is to complete 4 or more rounds in 13 minutes — if you're finishing fewer than 3 rounds, the load or volume is too high. Prioritize movement quality over Rx weight every time: a clean goblet squat at 16kg builds more than a compromised squat at 24kg. Intensity is the stimulus here, and scaling is what protects it.

Intended Stimulus

This is a moderate time domain AMRAP designed to build aerobic capacity and lower body strength endurance. The 13-minute window targets a sustained, hard effort — not a sprint, not a grind. Athletes should feel like they're working at a 7-8 out of 10 the entire time, with the cumulative fatigue of the kettlebell movements and hollow rocks making the row feel harder each round. The primary challenge is conditioning with a strength endurance component, as the 24kg kettlebell demands consistent tension and positional integrity across step ups and goblet squats when fatigued.

Coach Insight

Set a pace you can maintain from round one — this is not a workout to go out hot. The box step ups will tax your glutes and quads early, so drive through the heel and stand tall at the top of each rep rather than rushing. On goblet squats, keep the kettlebell tight to your chest, elbows inside your knees, and hit full depth — these will feel heavier as the AMRAP progresses. Hollow rocks are your active recovery if you own the movement; lock your lower back into the floor, squeeze your core, and keep the shape tight rather than flopping. Treat the row as a pacing tool — aim for a consistent, moderate stroke rate (around 24-26 strokes per minute) rather than sprinting and dying. Common mistakes: losing step up height standards by rushing, letting the kettlebell drift away from the chest in goblet squats, and breaking hollow rock shape when fatigued. Suggested approach: do all movements unbroken for the first 2-3 rounds, then break goblet squats into 8-4 or 6-6 if needed in later rounds. Keep transitions under 10 seconds.

Benchmark Notes

The 24kg kettlebell goblet squats and box step-ups are the primary limiters, with the calorie row adding cardiovascular demand. L5 (~3.5 rounds) reflects a steady but broken pace through the KB movements with short transitions.

Modality Profile

Box Step-Up (W), Kettlebell Goblet Squat (W), Hollow Rock (G), Row (M). 4 movements total: 1 Gymnastics (25%), 1 Monostructural (25%), 2 Weightlifting (50%).