Core 2: Factors Affecting Performance Presented by … or False? A 100m sprinter would...

© Ben Carr & Edrolo 2016

Energy Systems Core 2: Factors Affecting Performance

Presented by Ben Carr

HSC PDHPE

Energy Systems •  Alactacid system (ATP/PC) •  Lactic acid system •  Aerobic energy system

Syllabus dot points

Introduction

Analyse each energy system by exploring

•  Source of fuel

•  Efficiency of ATP production

•  Duration the system can operate

•  Causes of fatigue

•  By-products of energy production

•  Process and rate of recovery

© Ben Carr & Edrolo 2016

© Ben Carr & Edrolo 2016

Energy Systems

Energy  

Anaerobic  

ATP-­‐PC  (PC  Glycolysis  (CHO)  Lac:c  

Acid  

Aerobic  

Glycolysis  (CHO)   Lipolysis  (Fat)  

© Ben Carr & Edrolo 2016

Energy Systems

Energy  

Anaerobic  

ATP-­‐PC  (PC  Glycolysis  (CHO)  Lac:c  

Acid  

Aerobic  

Glycolysis  (CHO)   Lipolysis  (Fat)  

Theory: Alactacid system

© Ben Carr & Edrolo 2016

© Ben Carr & Edrolo 2016

Alactacid (ATP/PC) System

Source:  hCps://www.youtube.com/watch?v=wVfNVVTjBKU

© Ben Carr & Edrolo 2016

Concentration of ATP ATP Store

Rate of Energy Production Over Time

© Ben Carr & Edrolo 2016

Concentration of ATP

ATP Store

ATP – PC system

Efficiency •  Rapidly Available •  Limited Supply

ATP/PC systems (Anaerobic)

© Ben Carr & Edrolo 2016

Concentration of ATP

ATP Store

ATP – PC system

Duration •  Within 1 – 2 sec •  10 – 12 sec with

PC

ATP/PC systems (Anaerobic)

© Ben Carr & Edrolo 2016

Concentration of ATP

ATP Store

ATP – PC system

Cause of Fatigue •  Bodies inability

to resynthesise ATP.

•  Occurs when we run out of PC.

ATP/PC systems (Anaerobic)

© Ben Carr & Edrolo 2016

Concentration of ATP

ATP Store

ATP – PC system

By products: •  Heat

ATP/PC systems (Anaerobic)

© Ben Carr & Edrolo 2016

Concentration of ATP

ATP Store

ATP – PC system

Rate of recovery: •  About 2 minutes

to fully regain normal levels of PC

ATP/PC systems (Anaerobic)

ATP/PC systems (Anaerobic) sporting example

Source:  hCps://www.youtube.com/watch?v=t9U9GdYWuI0  

True or False? A 100m sprinter would predominantly use the ATP/PC system

© Ben Carr & Edrolo 2016

Fact Check

Source: Image source: https://commons.wikimedia.org/wiki/File%3AAthlete_at_starting_block.jpg

True or False? A 100m sprinter would predominantly use the ATP/PC system

True. Short event: only requires the stored ATP and PC that we have in our bodies.

© Ben Carr & Edrolo 2016

Fact Check (Answer)

Source: Image source: https://commons.wikimedia.org/wiki/File%3AAthlete_at_starting_block.jpg