Blood Supply to the Muscles

The Physiology of Fitness Assignment 1 Helpsheet measuring stick 1 You look at to introduce your assignment, here I would define two key foothold for the entire of this assignment these be chronic and penetrating. fount Answer there argon many changes to the body during operation these can be sepa step as acute and chronic. Acute meaning they are short stipulation and happen almost instantly with the onset of course session. The other chronic is want term and allows the body to adapt its capabilities so thence it can suit new demands in the future.Examples of these bequeath be talk overed in time by dint of each one of these bodily systems musculoskeletal, zip, respiratory and cardiovascular system. Step 2 At this stage of the assignment you gather up to look at the eldest body system of musculoskeletal. Here you need to identify all of the acute changes that beat place within this system and then relate this to a skylarking use. Some of the changes you need t o discuss are Increased personal line of credit supply, increment in pass pliability, change magnitude range of endeavour and musculus fibre micro tears.Example Answer Increases the range of deed when we start to exercise the movements of our joints means that synovial wandering starts to secrete within the joints. The fluid becomes less(prenominal) viscous and therefore the range of movement within the joint attachs. An archetype of this in sport is the need for a warm up for a butterfly swimmer. So they can get the full range of movement at the shoulder joint that area has to be warmed up prior to the race. Step 3Keeping the musculoskeletal changes in mind you straightaway need to discuss the chronic responses, these are hypertrophy, annex in tendon might, increase in myoglobin stores, increase in muscle strength, increase in border to lactic acid, increase in bone calcium stores, increased stretchability of li haltingnts, increased thickness of hyaline cartilage a nd increased production of synovial fluid. Example Answer Increased production of synovial fluid as alludeed previously the movements stimulate the secretion of synovial fluid.With regular exercise this fluid on initial release is less viscous and the range of movement at the joint increases as connective tissue improves its flexibility. An example in sport is a high start outer. Over a prolonged occlusion of training their human knee joint in particular will take a lot of strain, this repetitive strain will allow for the knee joint to increase synovial fluid production as the jump can non e performed without the knee joint. Step 4 You straightaway need a new side heading of free competency systems and at this stage we will talk about the acute responses of the energy system.You need to discuss each of the three energy systems and how they initially respond to exercise. Example Answer Creatine Phosphate System When exercise intensity is high, or energy needs are immediate , Creatine phosphate stored in the muscle is broken down to provide energy to deal ATP. When the high energy bond in Phosphocreatine is broken, the energy it releases is used to resynthesise ATP. Explosive cause can be achieved but for only short periods at utmost intensity.An example of this would be triple jump, if the athlete needs immediate energy this system is used, as the sport will last up to 10 seconds on completion of each jump it can not count for energy from the Lactic Acid system. Step 5 In this arm you need to discuss the chronic changes which apply to the energy system, you need to discuss in particular the aerobic system but also make specific reference to an increase in aerobic and anaerobic enzymes and increased use of fats as an energy source. Example AnswerIncreased use of fats as an energy source Fat oxidation increases if exercise extends to long periods, as animal starch levels deplete. This is particularly prevalent to marathon runners. These athletes will burn of the glycogen in the carbohyd places digested and will need another source of energy to refer to this is where fats are then used. Step 6 Under the side heading of respiratory you need to discuss the acute changes in this system. You will need to mention the following changes increased airing rate and increased tidal mountain as well as many others.Example Answer Increased breathing rate referable to the fact the running(a) muscles require energy during exercise the brain sends signals to increase the breathing rate. This increase in breathing rate allows for more(prenominal) oxygen to be taken in and then delivered to the working muscles. It also allows for the waste products to be exhaled much quicker. An example of this is a football player will gradually increase their breathing rate the longer the game lasts and the more that the muscles demand oxygen to fulfil physical movements. Step 7You now need to discuss the chronic changes to the respiratory system aga in relating them to sport to show understanding you need to include the following increased resilient capacity, increase in minute ventilation, increased strength of respiratory muscles and increase in oxygen diffusion rate. Example Answer Increased strength of respiratory muscles like any muscle the more that it is worked the greater its strength, therefore the same can be said of the intercostals muscles of the chest of drawers cavity, due to the increased work load in breathing they become more efficient allow for greater expansion of the chest.An example of this would be a tour de France cyclist. Due to the intense nature of the event there chest capacity will have to increase to meet the constant demands. Step 8 Under the side heading of cardiovascular system you will now need to discuss the acute changes to this system giving sport examples. The following changes will need to be discussed Heart rate prevenient response, activity response, increased blood pressure, vasodila tion and vasoconstriction. Example AnswerVasoconstriction this is where the blood vessels decrease in diameter to restrict the flow of blood to an area of the body which does not need the blood supplies as much as another area. An example of this is a boxer, here due to the repetitive punching from the fighter the arms and amphetamine body needs the blood to allow for regular movement, the legs receive less. This is wherefore when a fighter is knocked down commentators sometimes say his legs have bypast this is because of a lack of oxygen as it has all gone to the fastness body and brain. Step 9 Finally you need to talk about the chronic change to the cardiovascular system.This area is vast and needs a lot of detail. The changes you will need to discuss include cardiac hypertrophy, increase in stroke volume, cardiac output, resting heart rate, capillarisation, blood volume, blood pressure, recovery time and aerobic fitness. Example Answer Decreased resting heart rate this is a chronic change because the heart adapts and learns how to cope with the demands of extreme and intense workouts the more you exercise, this therefore means the normal everyday task do not apply as much strain to the body therefore not requiring the heart to increase blood supply to the areas of the body that are working.