ATTQOTD: While I have a gym membership, I became a firm believer in the benefits of strength training in combination with race training after my second half marathon. My first half marathon was difficult. Much of that was self inflicted, but I had done most of the training and every single one of the long runs, but just running. Because I lived in fear that I would be swept, I decided beforehand to stop for no photos whatsoever and then started the race itself way too fast. Slowing down caused the screaming pain in my shins to calm down and eventually I finished in 3:05. In training for half marathon number two, I incorporated some strength training into my routine. During that race, I also stopped for two character photos that were approximately 5-10 minutes total of waiting. And I finished that race in 3:07. I noticed that I felt stronger during the race, especially my upper body.
Now let's fast forward to summer 2018. In training for a September half marathon, I neglected strength training. And paid a heavy price for that neglect. My upper back screamed in pain from about mile 3 on and the entire race felt like a long difficult death march. Out of desperation I stopped at a medical tent and had them put biofreeze on my back. It helped briefly, but I still had to deal with the pain. The thought of running the marathon in that kind of pain terrified me, but since I recognized the likely cause of my issues, I made sure to incorporate strength training as part of my marathon training routine. At no point in the marathon did my upper back hurt anywhere near as much as the entirety of my September Half Marathon.
I still don't strength train as much as I would like to, but I have definitely noticed a huge difference even when I do it 2-3 times a week.