Workout Description

Why This Workout Is Medium

A 4-mile run is a moderate aerobic effort for the average CrossFitter—roughly 28-35 minutes depending on fitness level. It's a single, straightforward movement with no skill component or weight to manage. The primary challenge is mental endurance and pacing rather than intensity. Most athletes can complete this unscaled, though it requires solid aerobic capacity. It's harder than a short sprint but easier than high-volume or heavy barbell work.

Training Focus

This workout develops the following fitness attributes:

• Endurance (9/10): A 4-mile run is a pure aerobic capacity test, demanding sustained cardiovascular output for an extended duration. This is a classic endurance stimulus with minimal rest.
• Stamina (7/10): Running 4 miles requires sustained muscular endurance in the legs and aerobic system. The continuous nature demands maintained output, though not as extreme as multi-modal workouts.
• Speed (5/10): Pacing strategy and maintaining consistent speed over 4 miles is important. Not a sprint, but steady cycling of effort throughout the distance.
• Flexibility (2/10): Basic hip, ankle, and knee mobility are required for running mechanics. No extreme range of motion demands or specialized positioning needed.
• Power (2/10): Running is primarily a steady-state aerobic activity with minimal explosive demands. Some power is used in stride propulsion, but it's not the primary focus.
• Strength (1/10): Running requires minimal force production compared to strength training. Body weight propulsion is the only demand, with no external load or maximal effort components.

Movements

• Run

Modality Profile

Run is a cyclical cardio movement classified as Monostructural (M). Single movement workout = 100% of that modality.