The pain could be related to the overstressing of back muscles or back bone. The imperfect posture during training might increase stress on the back which leads to the injury. This is necessary to correct your posture while doing squat to protect yourself from injuries. Here https://www.aqfsports.co...

There is a fine line between injured muscles and sore muscles. You've to be aware of what body is trying to tell you. Listen those signals carefully and don't try to overstress those. Soreness can be differentiated from injury in a way that its not time taking, as when muscles are sore they take rel...

I'd suggest you to keep your muscles hydrated during exercise especially mountain biking. There is a lot of stuff to consider such as sleep time, daily routine and diet, to make sure you're not giving your body any chance of injury. You can take supplements before or after workout, but you can't tak...