Strength has a definite impact on how we run. Better running economy not only helps us run faster, but can also decrease our chance of injury through better movement patterns. - Strength can reduce wasted motion. - Triathlon link: better run off the bike for the same HR/pace. Below is a study that discusses the effects of strength training on middle & long distance runner's economy. An excerpt from this article mentions: "The combination of two or more strength training methods (e.g., high load training, plyometric training) may induce greater running economy improvement, compared to isolated training methods." Study: systematic review/meta-analysis on strength training & running economy. Note: all articles and studies are up for interpretation, and there are usually other studies that refute ones that you've read. It's important that you use your best judgement when deciding what you believe to be the truth. As a coach, I use studies to help me validate what I've seen and experienced in my career.

Post the exercise you hate but know you need. I'll start. Squats. I'm pretty sure everyone hates squats.