A pulled hamstring is a pain in my ass- seriously. I knew it was getting tight and I didn’t step up my stretching. Wham Bam one little move the wrong way and I’m limping for a few weeks. The reason my normal daily stretching didn’t keep it stretched out is I teach 3 stretching/ resistance band classes in less than 12 hours. We’ve been doing a new (really awesome) lower body resistant band workout that should have a rest day between workouts. What I should have been doing and will start doing now is using a weaker band for 2 of the classes so as not to over work my muscles. Hindsight is always 20-20! You get the most benefit from a resistant workout (either with bands or weights) 2-3 times a week. The recommended times vary depending on age and fitness ability but you can get a decent upper body and core workout done in 15-20 minutes. What ever you do don’t forget to stretch!