It's not goodbye, planks — this one exercise is more effective at strengthening your deep core muscles (and whole body)

This is a full-body exercise, but it also tests your stability, balance and control by holding your muscles under tension the ...
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All you need to target the deep core muscles is four moves and a resistance band, says this certified personal trainer

M ost people know where the abs are in the body—sometimes known as the six-pack muscles—but few are so familiar with the deep core. These are the deepest layer of abdominal muscles and are sometimes ...