This bit of wisdom from this month HEALTHbeat, Harvard Medical School’s Newsletter.
If this is true I must have a magnificent core as I have skipped the sit-ups my entire life. Skimming the following pages I believe they makes some reference to something called planks, but I didn’t read any further. I find that you can get the important information from an article in the first paragraph.
Back to my core workout. Have a nice day.