what muscles keep us standing
Hip Muscles. Hip muscles also contribute to proper posture in a standing position. The gluteus medius muscle, running from the pelvis to the femur -- the thigh bone -- moves your hip into internal rotation, rotating it inward toward your body.
Standing desk aficionados tend to experience more pain in the lower back, legs and feet. If your body is using the same muscles, the same way all the time, you're going to experience strain, said Freedman. When you're standing in one place, the muscles are still working to keep you erect. Your back muscles, the muscles in your core, are still working to keep you up straight.. This is why some experts advocate you take breaks from standing. Dr. Rob DeStefano, a chiropractor in private practice in New York City, recommends alternating back and forth between sitting and standing.