Squats are a way of augmenting the run. Often during long runs in the mountains, after climbing up boulders and scrambling over shale uphill your quads will burn, this is a good way to force the issue before you even start.
Sustained Strength Phase 2 – Microcycle 1 – Long Run
Squat 1 x 8, same weight as last Squat day
8 mile easy run
If you have my questions, feel free to reach out.