21-15-9
Scroll down for video demonstrations of the exercises. Some movement names may be unfamiliar, but the videos show you exactly how to perform them.
Muscular Endurance
High total rep volume challenges your muscles to repeatedly produce force without breaking down.
Strength Endurance
Movements like the clean and press, squat press, renegade rows, and reverse shoulder presses force your body to continue producing power even as fatigue accumulates.
Cardiovascular Conditioning
Burpees, froggers, squat jacks, and ski jumps keep your heart rate elevated throughout the workout, improving work capacity and recovery between efforts.
Lateral Movement and Midline Control
The lateral jump variations challenge frontal plane movement and the ability to control your body while moving away from the midline — an often neglected quality in traditional strength programs.
Mental Toughness
Anyone can perform well when fresh.
The final rounds are where patience, pacing, and resilience are built.
Runner's Corner
Distance runners often spend hours moving in a straight line at a steady pace.
This workout asks your body to do the opposite.
Lateral movement, upper body work, jumping, bracing, and repeated transitions from the floor challenge coordination, stability, and fatigue resistance in ways running alone cannot.
Adding the optional run between sets teaches your body to continue producing strength and power after your legs are already tired, a valuable skill late in races when form usually begins to deteriorate.
Who This Workout Is For
✔ Runners and endurance athletes
✔ Anyone looking to improve conditioning without endless cardio
✔ Individuals wanting to build muscular endurance and fatigue resistance
✔ Those who enjoy fast-paced, athletic style training
Equipment needed: step platform, weighted bar, dumbbells
Exercise Demos Included: New to a movement? No problem. Click any exercise name to watch a quick video demo so you can feel confident before you start.
The Workout
Perform 21 reps of each exercise in the set, then 15 reps, then 9 reps before moving on to the next pair of exercises.
Set 1
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Set 2
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Set 3
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Set 4
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Challenge Option
For runners and endurance athletes, add a 0.5 to 1 mile run between each set to increase the aerobic demand, build fatigue resistance, and improve your ability to produce force when tired.
