Question: What causes overtraining? Select all that apply. What causes overtraining? Select all that apply. Playing multiple sports in different seasons throughout the year. Focusing too much on skill and competence over strength training. Ignoring signs and symptoms of pain and soreness in a specific joint area to push through and not miss training. Training excessively to gain the competitive edge. Playing in multiple leagues throughout the year in the same sport. Not having adequate rest time.