Still having trouble with push-ups? These are the four most common mistakes that could be holding you back, according to an expert

Push-ups aren’t too complicated as far as exercises go, but that doesn’t mean they’re easy. As fatigue increases, errors tend to appear.

To fix these mistakes, I spoke with Sherri McMillan, owner of Northwest Personal Training in Vancouver, Washington. Below are four of the most common push-up mistakes she’s encountered over a career spanning more than 35 years, along with her expert advice on how to fix them once and for all.

Four common mistakes when doing push-ups