The common reasons for playing basketball and breaking your foot for a year and still not being able to make power are ankle joint instability, ligament laxity, chronic aseptic inflammation and so on. 1. Ankle joint instability: may be due to the broken foot at that time, the treatment is not timely or not healed. 2. Ligament laxity: a broken foot can cause damage to the joint muscles, making the ligaments become lax, which can also cause the inability to develop strength. 3 chronic aseptic inflammation: after breaking the foot, the surrounding tissues are damaged, forming chronic aseptic inflammation, so that the local elasticity, ligament decline, etc., can not power. Basketball broken foot for a year can not power, there may be other reasons, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor for standardized treatment.