The Physiology of Fitness physiology | Page 7

Basketball plays lasting between 10 and 30 seconds , the phosphagen system uses adenosine triphosphate-creatine phosphate for energy . The ATP-CP provides quick bursts of immediate energy . For example when a player is going to get a rebound they need that quick energy to get the ball and start an attack or to finish the attack . Plays that last between 30 and 60 seconds require the glycolytic system to supply energy . During this energy production , the body draws on anaerobic glycolysis to release ATP and produce lactic acid . The energy source can be used for moderate-intensity activities but requires about 60 to 240 seconds for a full recovery . Examples of this are fast breaks and full court defensive press . The aerobic system is essential for continuous play during the course of an entire game , replenishing these energy stores that improve the recovery times for those energy systems . While the phosphagen and glycolytic systems are releasing ATP and lactic acid , the aerobic system replenishes these energy stores ready to be used again so overall performance can rise . This is why the energy systems cannot work individually because when one is working one is recovering so if we need to use that energy system we can .
Musculoskeletal system :
The musculoskeletal system is the combination of the muscular and skeletal systems working together and includes the bones , muscles , tendons and ligaments of the body . The musculoskeletal system provides our bodies with shape , protection of our internal organs and the ability to move .
As someone participates in exercise the muscle fibres will tear down and rebuild bigger and stronger as well as the synovial fluid production in the joints will increase so it keeps the risk of injury and damage to the joint low . When you are exercising your body temperature increases so the muscles and connective tissues become warmer which means your range of movement will increase , this also allows an increase of blood flow to allow more oxygenated blood to get to the working muscles .
Before any sport activity a warm up should be done so the muscles , joints and blood are ready to perform at a high level , it also gives a reduce risk to a chance of injury . It produces the synovial fluid to keep it clean and slippery so the joint can move freely ready for extra stress to be put on them during the exercise . The veins will expand to allow more blood to be pumped around the body and the working muscles , these adaptions happen because it reduces the chance of damage and risk of injury to the body while still allowing it to work at a high level .