New York Times columnist and author of the new e-book, The First 20 Minutes Personal Trainer, Gretchen Reynolds gives us the final world on how to make your exercise count once and for all. By Ava Feuer, REDBOOK
Don't focus on strengthening your core
Well, it looks like that hundredth sit-up was probably a waste. When scientists tested athletes, such as football players, who would seemingly need super-strong cores to stay upright on the field, they found no correlation between core strength and performance. That's because the real hallmark of success is actually core stability. "An unstable core throws off all the muscles that circle your back," says Reynolds. "The primary purpose of the core muscles should be to hold your spine in place." To raise core stability, don't do sit-ups, which are usually performed incorrectly, and can lead to serious lower-back injuries. Instead, try three exercises: 10 proper crunches, which require laying flat on the ground with your knees up and Read More »from 7 Best Tips from Experts on How to Make Your Workout Count









