Problem
Mr. Smith is competing in a 15K run which he has trained for during the last six months. He has set himself a target of completing the race within 70 minutes. He realises at the 10 K mark that he has been running too slowly and now needs to make up time to achieve his target time
Explain how the functions of Mr Smith's skeletal, muscular, circulatory, respiratory, and nervous systems will have to work together in order for him to achieve his goal.