If you go to the gym often, you might have been told you shouldn't lift weights in runners. The common belief is it is bad for your performance and can lead to injuries. But is this really the case? Let's unpack the science. What your feet are doing when you lift Your feet are key to exercising safely and effectively. When you walk and run, they act like a springs and help propel you forward with each step. Your feet also help you maintain balance by supporting your weight. When you lift any