Metabolic and Aerobic Conditioning for Occupational Demands
What this domain tests
Occupational work is intermittent and unpredictable, so this domain tests aerobic capacity, repeat-sprint ability, threshold training, load-carriage conditioning, and work-to-rest design.
Core rules
- Aerobic capacity supports recovery between efforts; build it with two to three sessions per week at conversational to threshold pace.
- Repeatability requires intervals: short (10–30 seconds), medium (1–3 minutes), and long (3–8 minutes) with work-to-rest matched to job demands.
- Rucking is a specific load-carriage stimulus; progress distance, load, or terrain one variable at a time.
- Use session-RPE to monitor internal load and alternate hard and easy days.
- Specificity matters: a 2-mile run test does not fully prepare a soldier for 25-kg ruck marching or a firefighter for stair climbing.
Worked example
A soldier must improve a 5 km ruck march and repeat-sprint ability. Weeks 1–3: two interval sessions (6×30 seconds hard with 90 seconds easy; 4×3 minutes at threshold with two minutes easy), one long easy run, and one ruck at 20 kg for 6 km. Weeks 4–6: add one repeat-sprint circuit (10×40 m shuttle with 30 seconds rest) and ruck 8 km at 22 kg. Reasoning: aerobic work supports recovery; intervals target repeatability; ruck progression is gradual; hard days alternate with easy days.
Traps
Only long slow distance; only HIIT; adding ruck load and distance simultaneously; no easy days; using a single test to judge occupational readiness.