The following is an excerpt from a presentation during our senior year of university. It is a brief video explaining an issue that arose a few years ago in the fitness industry. CRUNCHES... were all of the sudden a taboo.
Physiotherapists, personal trainers and any rehab specialists were "educating people" to avoid doing crunches because "it is bad for your back".
The shearing forces... The degenerative disc disease... The time wasted not doing something else more "functional" (ahem a topic for a future post)... it is madness!