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Track Workout - Threshold 400s

Objective: Train up your lactate threshold.

Warm Up

Perform a standard warm-up.

Main Set

Pace Rest Interval
400 sprint pace plus about 10%

twice your run time - walk or jog -
at least 2 min, but not more than 4

Example: If your 400 sprint time is 80 seconds, run at about 90 seconds and rest 3 minutes.
Don't know your 400 sprint pace? Run the first two hard, and take the fastest time, and add 10% for the remaining repeats.

Cool Down15 minutes - walk at least 400m, stretch

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