Not even a week after joining World Gym, I pulled a muscle on a treadmill trying to complete a 5K. I thought I had been going easy on my running legs this past week and tried to do an easy 5k today, not pushing anything.
But on the third mile, I started feel a twinge that should have signaled me to ease off or stop, but I tried to push through it and not .05 miles from the end, I full-blown pulled the muscle.
I think "pulling a muscle" is a nice way to describe a torn muscle, and that's more of what it was. Something felt like it tore, same as last year when I tried to run. Riiiiip. Limp, limp, limp. I knew no more running or jogging or anything leggy for about a week. I bought an ice pack.