Exercise case studynSacha placed 96th in the 2019 ironman triathlon in Port Macquarie. During this event he swam 3.8 km,nrode a bicycle for 180 km and run for 42.2 km, in that order, in a time of 10 hrs, 12 minutes, placingnhim 96th in the competition.nIf Sacha was dehydrated by as little as 2 percent of his body weight, he could come fatigued, havenreduced athletic performance, be at risk of heat stress, and be more likely to get muscle cramps.nTherefore, it is important for Sacha to stay well hydrated during the triathlon to have the capacity tontolerate the longer and more intense activity. During the triathlon he chooses to drink a sports drinkncontaining 0.4% sodium and 0.5% potassium (=0.9% electrolytes)n1. Discuss the effects on cells when consuming a drink that contains 0.9% of electrolytes versusnwater during an ironman triathlon. (6 mark)n2. Calcium is required to give strength to the bones. When blood calcium levels fall, thenhomeostatic response includes the removal of calcium from the bone matrix. Keeping innmind the events at the neuromuscular junction and muscle contraction explain in detail whynthe body will sacrifice bone density to maintain blood calcium? (13 marks)n3. Discuss the role of the neural and musculoskeletal system on Sacha’s thermoregulationnduring the triathlon. Include how the homeostatic control of body temperature differs whennSacha enters the cold ocean water for the swim component of the event in comparison tonthe running leg. (10 marks)n4. Discuss TWO mechanisms which can lead to a cramp.