Workout Description
For Time, Fast and Heavy
21 Dumbbell Thrusters
400 meter Run
18 Dumbbell Thrusters
400 meter Run
15 Dumbbell Thrusters
400 meter Run
Why This Workout Is Hard
While dumbbell thrusters alone aren't maximal loading, this workout creates significant fatigue through descending rep schemes (21-18-15) with no built-in rest between reps. The 400m runs prevent full recovery and maintain elevated heart rate throughout. The combination of continuous thruster volume and running creates a challenging metabolic stimulus that will take most athletes 12-15 minutes at high intensity.
Benchmark Times for Fast and Heavy
- Elite: <6:00
- Advanced: 7:00-8:00
- Intermediate: 9:00-10:00
- Beginner: >18:00
Training Focus
This workout develops the following fitness attributes:
- Endurance (8/10): The three 400m runs combined with thrusters creates significant cardiovascular demand. Running intervals with loaded movements taxes both central and peripheral fatigue systems.
- Stamina (7/10): Descending rep scheme of thrusters (54 total) combined with running requires sustained muscular endurance, particularly in legs and shoulders.
- Flexibility (6/10): Thrusters demand good mobility in ankles, hips, and shoulders. Front rack position and overhead lockout require decent range of motion.
- Strength (5/10): Dumbbell thrusters require moderate strength, especially when performed under fatigue. Not maximal loading but must be 'heavy.'
- Speed (5/10): Transitions between runs and thrusters plus movement cycling speed are important, but pacing is crucial with heavy loads.
- Power (4/10): While thrusters are typically explosive, the 'heavy' loading and fatigue from runs will likely reduce power output to moderate levels.
Scaling Options
Reduce dumbbell weight by 25-40% from normal thruster weight. Scale runs to 200m or substitute 500m row/bike. For newer athletes, reduce to 15-12-9 rep scheme. Alternative movement options: DB front squats + strict press, goblet squats, or single dumbbell thrusters. Target weights: Advanced (50/35lb), Intermediate (35/25lb), Beginner (25/15lb).
Scaling Explanation
Scale if you cannot perform 10+ unbroken thrusters with proposed weight or if 400m runs typically take over 2:30. Maintaining proper thruster mechanics throughout all sets is crucial - reduce weight if front rack position fails or lumbar flexion occurs. Target completion time is 12-18 minutes. Athletes should feel capable of running at 70-80% max pace between thruster sets.
Intended Stimulus
Moderate-length glycolytic workout (12-18 minutes) combining heavy dumbbell loading with aerobic running intervals. Primary focus is on maintaining power output and form under cumulative fatigue. The descending rep scheme provides a psychological advantage but total volume remains challenging.
Coach Insight
Break up thrusters strategically from the start - consider sets of 7-7-7 in first round, 6-6-6 in second, 5-5-5 in final round. Maintain a steady, sustainable run pace rather than sprinting. Drop dumbbells between sets to protect form and grip. Keep core tight and elbows high in the front rack. Common mistake is rushing first round of thrusters then hitting severe muscle fatigue by round two.
Benchmark Notes
This workout is structurally similar to Helen (3 rounds of 400m run + movements) but with dumbbell thrusters replacing KB swings and pull-ups. Using Helen as our anchor (L10: 7:30-8:30 male, 8:30-9:30 female).
Breakdown per round:
- 21/18/15 DB Thrusters: 2.5s/rep fresh → 52.5s/45s/37.5s
- Fatigue multiplier: R1 1.0x, R2 1.2x, R3 1.3x
- 400m Run: 75-90s per round with increasing fatigue
- Transitions: 5-10s between movements
Round 1:
- 21 Thrusters: 52.5s
- Run: 80s
- Transition: 8s
Total: ~140s
Round 2:
- 18 Thrusters: 45s × 1.2 = 54s
- Run: 85s
- Transition: 8s
Total: ~147s
Round 3:
- 15 Thrusters: 37.5s × 1.3 = 49s
- Run: 90s
- Transition: 8s
Total: ~147s
Projected elite times: 434s (7:14) for men, 495s (8:15) for women
Final targets (M/F):
L10: 6:00-7:00 / 7:00-8:00
L5: 10:00-11:00 / 11:00-12:00
L1: 18:00-20:00 / 20:00-22:00
Modality Profile
Thruster is a weightlifting movement (barbell), Run is monostructural cardio. With two movements of different modalities, the split is 50/50.