1 / 9

The Energy Continuum

The Energy Continuum. Lesson Aims. Identify the advantages and disadvantages of the different energy systems To describe the implications the intensity and duration of exercise has upon the energy re-synthesis requirements. To illustrate the key theories linked with the energy continuum.

meadow
Télécharger la présentation

The Energy Continuum

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. The Energy Continuum

  2. Lesson Aims • Identify the advantages and disadvantages of the different energy systems • To describe the implications the intensity and duration of exercise has upon the energy re-synthesis requirements. • To illustrate the key theories linked with the energy continuum.

  3. Energy Continuum “The relative contribution of each energy system to ATP re-synthesis determined by the intensity and duration of exercise” • What does this mean? • Each energy system provides differing levels of ATP re-synthesis, the intensity and duration of exercise determines, which energy system is most predominant in providing ATP. • Note- they do not work in isolation!!

  4. ENERGY CONTINUUM - p 8-9 • Give examples form a game of your choice to show when the three energy systems will be used.

  5. Thresholds • The threshold of any system is the point at which it cannot provide energy. • The threshold for the PC system is the point it cannot provide energy for the working muscles (Usually after 10 seconds). • What about the aerobic threshold, when is it reached?

  6. Energy supplied against time

  7. Onset of Blood Lactate Accumulation (OBLA). • “The point at which the concentration of lactic acid in the blood rapidly increases”. • Lactic acid levels: • Normal aerobic work = 1-2mmol of lactic acid per litre of blood. • OBLA = 4mmol per litre of blood. (anaerobic work).

  8. When does OBLA occur? • OBLA varies depending on the aerobic fitness of the performer. In untrained individuals this may occur at 50% of their Vo2 Max. • In highly trained athletes this may be as high as 85% of their Vo2 max, due to their ability to dispose of waist products (lactic acid). • Vo2 max = the maximum amount of O2 you can take into your body and utilise for exercise. • Consider two identical twins both with the same Vo2 Max, one is trained the other is not. They both race to the shops, who will experience OBLA first?

  9. Question • Complete a table to describe the predominant energy system used used in the following activities:

More Related