Think that fast bicycle crunch is helping to strengthen your back? Think again!
I hope you all had a lovely Thanksgiving! Mine was excellent! Great food, delightful company, and lots of leftovers. I’m sure you’ve seen those musclebound guys at the gym who do their bicycle crunches so fast, that, by the time you get two done, they’ve done 20. Well, don’t feel the least bit bad about your efforts because that twisting at…