1 / 7

Energy Sources for Physical Performance

This article explores the vital role of nutrients in energy production for physical performance. It highlights carbohydrates, fats, and proteins as major sources of energy stored in the body, and explains how energy production shifts during rest and high-intensity activities. The ATP (Adenosine Triphosphate) system is discussed in detail, including the ATP-PC system for quick bursts of energy, the lactic acid system for high-intensity efforts without oxygen, and the aerobic system that supports longer, sub-maximal activities. Understanding these systems is essential for optimizing athletic performance.

jake
Télécharger la présentation

Energy Sources for Physical 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. Energy Sources for Physical Performance Nutrients Energy Production Energy Systems

  2. Nutrients For Energy • Carbohydrates (CHO) • Stored as glucose in blood and as glycogen in muscles • Fats • Stored as fatty acids in blood and triglycerides in muscles • Protien • Stored as amino acids around the body

  3. Nutrients For Energy At rest energy production uses 2/3 fats and 1/3 CHO. This is because O2 delivery is not a problem and fat requires lots of O2 to be broken down. As intensity increases CHO becomes main source because it is easier to convert to energy and requires less O2.

  4. ATP ATP (Adenosine Tri Phosphate) is an energy rich molecule which is the energy currency of the body. It is produced three ways: ATP – PC System (Anaerobic: without O2) Lactic Acid System (Anaerobic: without O2) Aerobic System (Aerobic: with O2)

  5. The ATP – PC System Adenosine P P P P Adenosine P P Phosphate Creatine P P P Adenosine • ATP-PC system uses ATP already stored in muscles and is instant. • It lasts up to 1o seconds. • It is for high intensity activity (90-100%). • Phosphate Creatine is required to reattach the Phosphate. The breaking off and reattaching of the Phosphate molecule is what produces energy

  6. The Lactic Acid System Chemical reactions in the body breakdown glycogen without Oxygen. Lactic Acid is produced which causes fatigue Lasts up to 90 seconds Is for high intensity activity (80-90%)

  7. The Aerobic System Chemical reactions in the body breakdown glycogen with Oxygen. No fatiguing by products Last for 2 hours plus. Is for sub-maximal activities (below 80%)

More Related