On my last set of parallel squats today I pulled a muscle in my right lower back. Pain kind of radiates to the groin. I was using the Smith machine, decent amount of weight 180 lbs (for me) don't have a Belt, probably fair to sloppy form . I was kinda scared at first. Had to pass on the 45° Leg press machine because of pain. But Finished the workout.
Now the pain is almost gone. 3 hours later.
What can I do to prevent this from happening again.