Push-up Common Mistake Push Ups are one of the most popular strength training exercises. We do them mainly to strengthen the chest and core muscles. ❌Common Mistake You let your lower back sag as we can see in the video. It's the inevitable form breakdown that takes place when you just don't have the baseline strength necessary to perform a standard pushup. 👍Solution: Keep core activated and back straight. Always maintain the spinal curves in a neutral position as in standing Keep all the core