FACTORS AFFECTING PERFORMANCE Flashcards
What are the 3 energy systems?
- Alactacid System (ATP/PC)
- Lactic acid system
- Aerobic system
What is ‘energy’ known as?
ATP
What does ATP stand for?
Adenosine Triphosphate
What is the first system to be used to create energy?
The alactacid system (ATP/PC system)
What is the source of fuel for the alactacid system
The breakdown of creatine phosphate
Describe the process of the Alactacid system
Explosive movement→ ATP molecule splits, phosphate detaches→ CP is broken down & releases energy→ free phosphate then re-joins ADP to make ATP
Describe the efficiency of ATP production in the alactacid system
It is highly efficient
How much ATP (energy) is produced by the Alactacid system?
less than 1 molecule for every CP breakdown
What is the duration of the Alactacid system?
10-12 seconds
What causes the Alactacid system to fatigue?
When there is no more Creatine phosphate stores meaning ADP cant be transfered to ATP anymore
What are the by products of the Alactacid system?
Heat
What is the rate of recovery of the Alactacid system?
within 2-5 minutes creatine phosphate stores replenish
What is the 2nd enegry system to be utilised?
The Lactic acid system
What is the source of fuel for the Lactic acid system?
The breakdown of carbohydrates (glycolysis)
What are the 2 forms of carbohydrates that the Lactic acid system can break down?
- Blood glucose
OR - Glycogen (stored glucose)
Describe the process of the Lactic Acid system
After the 20 seconds of the ATP-PC system, the body requires another ingredient because the PC supplies are exhausted. Therefore, the lactic acid system is activated and glucose is broken down through a process known as anaerobic glycolysis. This releases ATP but also produced pyruvic acid. Due to insufficient oxygen supply, the pyruvic acid cant be broken down and therefore lactic acid is produced, causing muscular fatigue and exhaustion
Describe the efficiency of ATP production in the Lactic Acid system
It makes ATP quickly
How much ATP is produced by the Lactic Acid system
2 ATP molecules for every breakdown of 1 glucose molecule
What is the duration of the Lactic Acid system?
30secs to 2min
What causes fatigue during the Lactic Acid system
the build up of lactic acid in the muscles
What are the by-products of the Lactic Acid system?
Lactic acid
What is the rate of recovery if the Lactic Acid system?
The lactic acid is removed from the body in 30min- 1 hr
What is the 3rd energy system to be utilised?
The aerobic energy system
What does the aerobic energy system utilise as fuel?
- Carbohydrates (glucose)
- fats
- proteins