I got up pre-dawn and headed out for a morning run, which is becoming essential. The morning part that is... since we are regularly seeing temperatures in the 90's during the day in Central Florida.
So I do my usual 2.5 mile loop. I ran it twice and then wanted to add another half mile up to the convenience store and back. I started slow to let all the parts get warm and loose. That worked out great. I didn't pick up my pace until about 1.5 miles. I then kept a fairly consistent pace (about 8:20/8:30) until about the end of mile 5.
That's when I started to open my stride to pick up the pace, but as I got into it, I started to overstride on the front side. All it took was one misstep and pain shot up from the top of my knee (Patella) to a few inches into my quad. I'm pretty sure is the the Rectus Femoris, but the accompanying quad tendon is where the pain originated.
I immediately stopped. Walking didn't hurt, so I tried jogging gingerly like at the beginning of my warmups. No pain there. As soon as I tried to get back to my workout pace, the pain shot up from the top of my knee again. Ouch! Again, I stopped and very slow jogging seemed fine. I continued down the road to the convenience store at my turtle pace and just treated it as a cooldown.
I will probably take off tomorrow and see if a little rest helps.