As many have seen with OsteoStrong, bone density can be brought to levels more than two standard deviations above what is considered to be normal. This means your body has a more powerful frame, will allow more muscular engagement and thereby more muscular strength and power.
Consider this illustration. When comparing a Formula 1 race car to an economy car, other than the engine, there is a stark difference between the frame of each car. The framework of the economy car simply cannot support the power of the Formula 1 racing engine. In much the same way, the central nervous system will not permit the muscular system to become stronger than what the skeletal system can handle.