idemudia_nkem_Lab4
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University of Illinois, Urbana Champaign *
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Subject
Aerospace Engineering
Date
Dec 6, 2023
Type
docx
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Uploaded by ColonelAnt285
Nkem Idemudia
Andy Askow
Lab # 4
9 October 2020
Definitions:
Isokinetic contraction: Isotonic contraction where rate of change in length is constant
Margaria-Kalamen Stair Climb Test: A field task intended to measure an athlete's lower body
power by running up stairs
Immediate energy system: The system that the body uses to generate explosive energy
Short-term energy system: The system that provides more energy to fuel muscle.
Purpose:
The purpose of this lab is to learn how to use the Wingate test for determining maximal
anaerobic power and the difference between man and peak power.
Results
:
Table 2.
Data collected from the Wingate Anaerobic Test (WAnT).
Age
Height
Weight
Peak Power
Average Power
Power Drop
(years)
(cm)
(kg)
(W)
(W/kg)
(W)
(W/kg)
(W/s)
Female
24
167.6
64.4
602.1
9.3
483.0
7.5
9.6
Male
25
180.3
82.8
916.5
11.1
726.0
8.8
15.3
Table 5.
Subject Data for Margaria-Kalamen Test.
Trial
Time (s) between 3
rd
& 9
th
step
1
0.51
2
0.45
3
0.42
Table 1.
Peak torque data from isokinetic strength testing.
Angular Velocity (
o
/sec)
Extension (lb
.
ft)
Flexion (lb
.
ft)
60
300
250
180
140
120
300
85
70
Vertical Distance (m)
1.143 m
Body Weight (kg)
73.2
Vertical Jump Calculations:
Trial 1: 13.5 x 0.0254 = 0.3429
Trial 2: 14.5 x 0.0254 = 0.3683
Trial 3: 15.5 x 0.0254 = 0.3937
Best Score: 15.5 x 0.0254 = 0.3937
Margaria-Kalamen Results:
Trial 1: Average
Trial 2: Average
Trial 3: Good
Discussion Questions
:
1.
Describe the relationship between
peak torque and velocity (e.g.
Margaria-Kalamen Power Calculations (Body mass x
Gravitational constant x Displacement / Time):
Trial 1: (73.2kg x 9.81m/s^2 x 1.143m) / 0.51s = 1609.37W
Trial 2: (73.2kg x 9.81m/s^2 x 1.143m) / 0.45s = 1823.95W
Trial 3: (73.2kg x 9.81m/s^2 x 1.143m) / 0.42s = 1954.24W
Vertical Jump Power Calculations (2.21359 x Body mass
(kg) x √ (CMVJ Height) (m) x 9.8):
Trial 1: (2.21359 x 59.3kg x (
√
0.3429m)) x 9.8 = 753.29W
Trial 2: (2.21359 x 59.3kg x (
√
0.3683m)) x 9.8 = 779.37W
Trial 3 & Best Score: (2.21359 x 59.3kg x (
√
0.3937m)) x 9.8
= 807.16W
Table 4.
Subject Data for Vertical Jump.
Trial
Vertical Jump (inches)
Convert to meters
(x
0.0254)
1
13.5
0.3429
2
14.5
0.3683
3
15.5
0.3937
Best score (m)
15.5
0.3937
Body Weight (kg)
59.3
60
180
300
Angula
r Velocity (o/sec)
0
50
100
150
200
250
300
350
Angular Velocity for Extension vs Flexion
Extension
Flexion
Angular Velocity (o/sec)
Peak Torque (Ib x f)
dynamometer data).
What processes in the skeletal muscle might be responsible for this
relationship?
As the velocity goes up, the peak torque goes down. It would be isokinetic contraction.
2.
Why is the Wingate test 30 seconds in length (please address the proper energy system
which is the main contributor for the Wingate test)?
It is 30 secs long because it measures the anaerobic power of the lower body to its max since it
the main source of energy.
3.
How does the anaerobic power output compare between the female and male (Wingate)?
Why would you expect there to be a difference?
The bar graphs show that male have more anaerobic power output over female. I wouldn't expect
it to be different because males are normally more masculine/ stronger than females.
4.
Describe the pattern of energy system usage during the Wingate test (i.e., which energy
systems are used and in what order).
There are 2 energy sources. First, the Wingate test measures the muscles' ability to work using
both the ATP-PC then the glycolytic systems
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