I'm 54 and lift weights for general fitness benefits.
Last week I was lifting two 40 pound dumbbells off the floor. I had them right by my side, and lifted straight up, using my legs to lift.
However, I must have gotten slightly off balance, and I pulled a muscle in my lower back (on the side). It's a muscle that I've injured many times over the years.
What can I do to avoid this in the future?