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The Physiology Of fitness- Acute responses to exercise recap

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Michelle Thomas

on 13 October 2013

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Transcript of The Physiology Of fitness- Acute responses to exercise recap

The Physiology Of fitness- Acute responses to exercise recap.
Acute response to exercise
LO1: Know the acute response to exercise.
What is the exercise physiology? - Exercise physiology is the study of how the body respond to exercise.
Case study Scenario: A 24 year old female Olympic level swimmer completes a warm up which involves 10 lengths of a 50m pool. Her event is the 100m free style. In order to prepare for the 2012 Olympic Games she completes a variety of sessions. This includes an aerobic session up to 2000m continuous, an anaerobic session which involves shorter faster paced repetitions up to 900m in volume. Strength and conditioning also play a role within the training and also functional training (body weight exercises) .

Task: Describe the acute responses during exercise within the four systems, musculoskeletal, energy systems, respiratory and cardiovascular.
Explain why the exercise types are suitable for the athlete/swimmer.
What effects does the exercise have on the body?

Musculoskeletal response
The musculoskeletal systems response to acute exercise is the build up of waste products in the muscles, causing aches and tired feeling, eventually pain. The body would go through a raise in heart rate so the performer would start to release sweat, raise in adrenaline levels.

Task: Discuss the acute responses of the swimmers warm up and the effects which the main session has on the body.
Energy systems
Adenosine Triphosphate: a complex chemical compound formed with the energy released from food and stored in all cells, particularly muscles. Only from the energy released by the breakdown of this compound can the cells perform work. The breakdown of ATP produces energy and ADP.

Task: The swimmers training involves both aerobic and anerobic work. Describe the process in which the energy ATP is restored.
Cardiovascular response
Heart Rate (HR), Stroke Volume (SV), and Cardiac Output (Q) increase. Blood flow and blood pressure change. All result in allowing the body to efficiently meet the increased demands placed on it.
As exercise intensity increases, heart rate, stroke volume, and cardiac output increase to get more blood to the tissues.
More blood forced out of the heart during exercise allows for more oxygen and nutrients to get to the muscles and for waste to be removed more quickly.
Blood flow distribution changes from rest to exercise as blood is redirected to the muscles and systems that need it.

Task: Discuss the effects of the aerobic exercise and anerobic exercise. Potentially the heart rate will plateu, during the aerobic exercise (2000m) explain why this is.
Respiratory
When you are exercising your respiratory system responses by your breathing rate increasing and you start to breathe heavily, this happens because your muscles need more oxygen so you breathe quicker so a supply of oxygen can get to the muscles, also when you finish exercise your breathing rate will decrease and start to recover. Another response from the respiratory system is the tidal volume, which increase as a response to exercise this is because the muscle needs an increase of oxygen. As well as the breathing rate and tidal volume, the pulmonary ventilation is also a response to exercise on the respiratory system. The pulmonary ventilation increases when the body starts to do exercise, this happens because like most of the other responses the muscles need more oxygen, there is also an increase in the removal of carbon dioxide.

Task: Describe the acute responses that the swimming training has upon exercise. Explain the importance of the respiritory response to exercise. Why is this needed?
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