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!
Granted, the people who were heavily against performing crunches in a training program had good intentions and possibly for a particular population. Off the top of my head those with spinal issues like disc protrusions. See picture below.
Thankfully, there are those who know their science. By that I mean those who spend a little time in doing research rather than blurting out things just to gain a little attention.
Without further ado, I will leave you with the funny video showing the pro's and con's of spinal flexion exercises. Hopefully you will get some giggles out of it.