Conditioning
Running Intervals
Short hard pieces with real rest between them — a time-efficient way to build running endurance.
How to do it
- Warm up with five easy minutes before the first hard piece.
- Run hard enough that talking is difficult, then walk or jog until your breathing settles.
- Hold the same speed on every piece — the last one shouldn't be the slowest.
- Finish with a few easy minutes.
