Undergarments play a very important role in protecting our health. They not only promote hygiene, but they also reduce the chances of chaffing, infections and keep the sensitive areas dry and prevent any unwanted odor. Most women own several pairs of bras, an undergarment used to support breasts, for different occasions. Sports bras are one such variety that women wear when they are doing active work. These bras are different than a daily wear bra as they are more durable and meant to restrict movement to ensure there are no injuries due to sudden movements. However, a new study suggests that this restrictive movement may be causing women back pain. The research published in the European Journal of Sport Science suggested that these bras, designed to really hold everything in place, might unintentionally put extra pressure on your spine while you're active. How Does Movement In Sports Bras Affect Women? To understand how a bra affected breast movement, researchers observed a woman doing activities like running, to see how it affected her breasts, back and spine movement. To understand the difference of movement in each bra, they ran the same test with no bra, a regular day wear bra and a sports bra. By tracking these movements, the researchers were able to see how each type of bra affected her body's mechanics during the activity. This detailed monitoring helped them understand the potential impact of different levels of breast support on other parts of the body, like the spine. Understanding the Sports Bra Mechanism Sports bras are specifically designed to limit how much your breasts move around when you're exercising. This is important because excessive bouncing can be uncomfortable and even cause pain, especially if you have larger breasts. Over time, repeated bouncing without proper support can also strain the skin and ligaments in the chest area. Because of these issues, the focus of many sports' bra designs, especially the newer ones, has been on achieving the highest possible level of breast motion control to maximize comfort and support during physical activity. The researchers pointed out that when your breasts naturally bounce while you're doing activities like running or spinning, the soft tissues around your chest actually help to absorb some of the force that would otherwise go to your joints and spine. However, a sports bra that's too tight and completely stops this natural bounce might prevent this force absorption. As a result, that pressure could then be transferred back to your spine, potentially causing your back muscles to work harder to compensate, which could eventually lead to pain or discomfort in the back. Too Much Movement Restriction Can Cause Issues It is natural for breasts to have movement when one is working out, while too much movement may hurt, allowing some movement can actually be good. This movement allows the surrounding tissues to play a role in shock absorption, protecting the spine and other joints from some of the impact. When a sports bra is so restrictive that it eliminates all bounce, it might disrupt this natural mechanism. This could mean that the forces generated during exercise, which would normally be partially absorbed by the breasts and their supporting tissues, are instead directly transmitted to the back, potentially increasing the load and stress on the spinal structures and muscles.