If you’ve completed a core workout—or 100 of them—over the years, you likely know what crunches are and generally how to do the exercise. But, with all the abs workouts out there touting no-crunches-required results, you can’t help but wonder:…
If you’ve completed a core workout—or 100 of them—over the years, you likely know what crunches are and generally how to do the exercise. But, with all the abs workouts out there touting no-crunches-required results, you can’t help but wonder:…