Lab 2: Wingate

Question 1

What does the wingate test determine?

Answer 1

Test used to assess peak anaerobic power and capacity
of the phosphagen and anaerobic glycolytic symptoms

Question 2

What is anaerobic metabolism?

Answer 2

The Production of energy (ATP) without O2

Question 3

There are 2 anaerobic energy systems that are used to generate energy. What are they?

Answer 3

1) Immediate (ATP-PCr) System.
ATP, PCr and myokinase reaction.

2) Short-term (Anaerobic Glycolytic) System.
Glycolysis/glycogenolysis.

Question 4

What Data is acquired from the Wingate?

3

Answer 4

1. Peak Power
2. Mean Power
3. Fatigue Index

Question 5

What is Peak Power?
What does it show?

Answer 5

• Highest mechanical power (W) achieved
• Mostly shows ATP-PCr contributon

Question 6

What is Mean Power?
What does it show?

Answer 6

• Ability to maintain power
• Mostly shows Anaerobic Glycolytic contribution

Question 7

What is Fatigue Index?

Answer 7

• Degree of decrease in power output (%)
• Fatigue of ATP-Pcr due to rapid depletion of ATP & Pcr
• Fatigue of glycolytic due to fatigue related by-products not depletion of glycogen

Question 8

Fatigue Index Equation:

Answer 8

FI%= (Peak PO - Min PO) / Peak PO

Question 9

Absolute Versus Relative Power

Answer 9

Relative Power allows us to scale absolute power (watts) to account for body mass (watts / kg)

• Beneficial for comparing power between individuals
• Heavier individuals will often be able to produce higher absolute force

Whether to use Absolute (Watts) or Relative (watts / kg) is dependant on:

• Is efficiency (maximizing power / weight) important (i.e. Short distance sprint)?
• Does the activity benefit from max power production (i.e. Sumo)?

Question 10

What is Muscular fatigue?

Answer 10

a complex process resulting in the inability to maintain a desired power output over a period

Question 10

What are some Cause(s) of fatigue?

3

Answer 10

1) Depletion of high-energy phosphates (ATP, CP, ADP).

2) Depletion of glucose/glycogen.

3) Accumulation of metabolic by-products (excess H+, Ca2+, Lactate)

Question 11

What is Anaerobic Power limited by?

3

Answer 11

1. Substrate availability.
2. Rate limiting step
3. Accumulation of metabolic by-products

Question 12

How does Proper post-exercise recovery reduce effects of fatigue?

5

Answer 12

Proper post-exercise recovery reduces effects of fatigue:
1) Restoration of ATP and CP.
2) Restoration of resting muscle and blood pH.
3) Oxidation of lactate.
4) Restoration of substrates (i.e. Muscle glycogen).
5) Restoration of resting blood glucose.