1 / 11

Measuring performance

Measuring performance. How do we measure human performance? What does this mean our body does?. What do we already know?. Circulatory System Blood system Respiratory system. Cardiovascular system responses. Pumps more blood to working muscles

sabin
Download Presentation

Measuring performance

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Measuring performance How do we measure human performance? What does this mean our body does?

  2. What do we already know? • Circulatory System • Blood system • Respiratory system

  3. Cardiovascular system responses • Pumps more blood to working muscles • Blood directed away from non essential organs to skeletal muscles • Higher cardiac output by increasing HR and SV • Blood pressure can increase • Less blood plasma due to sweating

  4. Blood flow • What happens to blood flow during exercise? • Due to an increase in heart rate (and stroke volume) to meet demands, cardiac output (the volume of blood pumped out of the heart in one minute) automatically increases • The faster and harder the heart pumps, the higher the rate of blood circulation.

  5. Blood pressure • What does blood pressure measure? • How is it measured? • What are the 2 values given? • Why does it change during exercise?

  6. Respiratory system • More oxygen taken into the lungs and delivered to the blood • Ventilation increases by increases in respiratory rate and tidal volume • Increased gas exchange in alveoli by more oxygen diffusing into capillaries and more C02 diffusing out

  7. Oxygen debt and deficit Pretend you have just run a 30 high intensity effort. How does this feel? What happens after the effort is finished? After how long do you get short of breath?

  8. Oxygen debt and deficit. • When you do a short burst of intense exercise you are working anaerobically, when you stop exercising your body is using extra oxygen to repay the debt. • After the short burst you start to recover you will actually need more oxygen to recover than your body would have liked to use had enough been available. This is called Excess Post Exercise Oxygen Consumption REPLACING THE OXYGEN THAT THE MUSCLES NEEDED BUT COULDN’T GET

  9. Muscular system • Uses for oxygen to burn fuel for increased muscular contraction • Increase in oxygen extracted from blood (increased in AVO2(arterio-venus oxygen) difference) • Increased muscular activation (greater amounts of muscles used) • Increased muscle temperature • Decreased energy stores (ATP/PC, glycogen)

  10. V02 Max • VO2 max is the measure of the peak volume of Oxygen (VO2) you can consume and use in a minute. It is measured in ml/kg/min and so you can see that it is also relative to body weight.

  11. Measuring V02 Max • Beep test allows us to predict V02 max. • Lab testing is the best (only) way to truly get a V02 max reading. • https://www.youtube.com/watch?v=A2z0l9B6aGE • https://www.youtube.com/watch?v=H3TXBZ2Cd_w

More Related