fatigue

Question 1

CAUSE of fatigue for ATP-PC

Answer 1

CP depletion

Question 2

EFFECT of fatigue for ATP-PC

Answer 2

as cp depletes, the athlete slows down and intensity will drop

Question 3

CAUSE of fatigue for anaerobic glycolysis

Answer 3

accumulation of lactate and H+ ions

Question 4

EFFECT of fatigue for anaerobic glycolysis

Answer 4

impairs enzyme functions and therefore muscle contractions
intensity falls and athlete slows down

Question 5

CAUSE of fatigue for aerobic glycolysis

Answer 5

glycogen depletion, thermoregulation

Question 6

EFFECT of fatigue for aerobic glycolysis

Answer 6

• the body turns to triglycerides to produce energy which has a slower rate
• athlete is tired, slows down
• slower rate of ATP production, intensity drops

Question 7

recovery time and type for ATP-PC

Answer 7

passive recovery allows the aerobic system to resynthesize CP
3 minutes to fully replenish

Question 7

recovery for anaerobic glycolysis

Answer 7

active recovery
allows oxygen to oxidize the h+ ions and reduce the acidity in the muscles.
oxygen shuttles lactate away from the heart

Question 8

recovery for the aerobic system

Answer 8

active recovery
allows the body to reoxidize cells and return to a pre-exercise state

Question 9

passive recovery

Answer 9

occurs when the athlete rests or moves at a low intensity – for example, walking. This type of recovery allows the aerobic system to restore CP, and it is the strategy advised when rest time is short and the following movement is of maximal or very high intensity

Question 10

active recovery

Answer 10

• involves the athlete maintaining a similar type of movement at a lower intensity than during their performance.
• eg a slow swim following a 400-metre swim or a jog following a netball match.
• maintains circulation, and blood flow, removes metabolic by-products, (h+) - circulation also: restores fuel to the muscles, prevents venous pooling and removes heat, assisting with thermoregulation.

Question 11

LIP

Answer 11

lactate inflection point

Question 12

what is LIP?

Answer 12

the FINAL point where lactate (and H+ ions) produced by the AGlyc. system can be balanced by the aerobic system (it oxidates the lactic acid)
- when the aerobic system is working at its fastest and fatigue is NOT occuring.

Question 13

knowing LIP

Answer 13

means that the athlete knows the fastest speed or intensity they can perform at while relying on the aerobic glycolysis system

Question 14

above LIP

Answer 14

means there will be an increased contribution from the anaerobic glycolysis system and lactic acid contribution, meaning the cell environment will be more acidic, leading to fatigue.

Question 15

by-product accumulation

Answer 15

• adp and Pi
• H+ ions

Question 16

adp and Pi accumulation

Answer 16

• produced in the ATP-PC system when ATP and PC spli