Strength Training for Runners: What to Actually Do

Most runners know they should be doing some strength work. Very few are doing it, and of the ones who are, a good proportion are doing something that will not make much difference. Usually some bodyweight exercises, a resistance band, and a core routine learned from a video several years ago. So here is a straightforward account of what strength training for runners is for, what it should actually involve, and how to fit it around training you are already doing.