Hal Koerner's Field Guide to Ultrarunning: Training for an Ultramarathon, from 50K to 100 Miles and Beyond

too many runners end up injured before they even get to the start line. Part

As for the lower body, you can gain power through your glutes by doing high reps of squats while holding a bar or dumbbells. I don’t normally focus much weight work on the lower body, but I do include some eccentric quad