al aata sneet QUESTION SET 12.5 What energy system contributes to your ability t
ID: 3509414 • Letter: A
Question
al aata sneet QUESTION SET 12.5 What energy system contributes to your ability to perform the WAnT? Bioenergetically, what limits your performance during the first 10 s, in the period from 0 to 20 s, and in the period from 0 to 30 s? 2. What is the typical force setting for the WAnT for an untrained person? For an athlete? Would different force values impact the results of the test? If so, how? How does one calculate the fatigue index, and what does it indicate? During which time interval was your highest power output achieved? umererces reiated to the peak power, mean power, or fatigue rate? Explain your answer. 9 How would the performance of someone with a high percentage of type I fibers compare with that of a person with a high percentage of type lI fibers? What would you expect to see in terms of performance? ti y ivia aing the vertical dis- placements and power outputs calculated from the countermovement vertical jump test by the results of the static jump test. QUESTION SET 12.2 1. Was there any difference between the highest vertical jump displacements or the countermovement and static vertical jump tests? If so, what neuro- muscular characteristics might explain these findings? 2. When you examine the calculated power outputs, how does the Lewis equation compare with the Johnson average and the Harman averageExplanation / Answer
12.2.
1.The countermovement vertical jump is known to cause a greater vertical jump displacement than the static jump.
The neuromuscular characteristics responsible for such a difference is explained by
a)increased potentiation of the neuromuscular system, and
b)reflex contribution, in countermovement jump.
12.5.
1. The energy systems contributing to WAnt are:
a)ATP-phosphocreatine system
b) lactate system
Bioenergetically, the first ten seconds rely on the availability of creatine phosphate which is limited in supply and
deplete quickly.
The lactate system is used for the remainder of time till a period of 1-3 minutes.
As the lactate level rises, the carbohydrate stores become depleted and results in muscle fatigue and
diminished performance.
3.A drop in anaerobic perfomance is indicated as fatigue index.
It can be calculated using peak and low power data points.
4. Power=work/time
Hence, highest power output would be in the beginning of work,
when candidate is asked to work to the point of exhaustion.
9.Type I muscle fibers are referred to as slow twitch and characterise low force/power/speed production
and high endurance.
Type II fiber are referred as fast twitch and characterise high force/power/speed production and low endurance.
Low intensity activities like lifting a spoon employ type I fibers.
Sports activities like vertical jump employ type II fibers.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.