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Transcript of Danny Luong
Anaerobic Power
Anaerobic Power in Exercise Science
Presented By:
Cesar Martinez
Danny Luong
Jennifer Pino
Lilianna Verastegui
Miranda Tijerina
California State University, Los Angeles
Presented To:
Raffi Brodeyan
In partial fulfillment of the requirement of
Kin 360 Laboratory, Section 08
March 16, 2016
1
Anaerobic Power
Introduction
Physical activity is a healthy part of humans. The human body reacts to exercise
according to the type of exercise. Depending on the exercise, the body will use three
different energy systems. The first energy system activated is the Adenosine
Triphosphate (ATP)-Creatine Phosphate (CP) system. Adenosine triphosphate (ATP) is a
high-energy phosphate, which serves as an immediate source of energy for muscular
contraction. As exercise is prolonged and intensified, the body will search for more
energy leading to the activation of Glycolysis. Anaerobic Glycolysis is the breakdown of
glucose or glycogen to form two molecules of pyruvate or lactate without utilizing
oxygen. Lastly, the body activates the Oxidative Phosphorylation system. Oxidative
phosphorylation is a mitochondrial process in which inorganic phosphate (Pi) is coupled
to ADP as energy is transferred along the electron transport chain and then oxygen is the
final electron acceptor. Physical activity could be measured through power output (W),
working in short durations (limited amount of time). There are two types of power
output, Relative (W/kg) and Absolute (W). Absolute power (W) is force times distance
divided by time. Relative power (W/kg) takes the weight of an individual into
consideration.
According to Powers and Howley (2012), anaerobic power(W) is produced during
the activation of the ATP/CP system and the Anaerobic Glycolysis system. The ATP/PC
systems is a very fast method that produces ATP due to the donation of a phosphate
group and its bond energy from PC to ADP which then forms ATP. “The structure of
ATP consists of three main parts; (1) an adenine portion, (2) a ribose portion, and (3)
three linked phosphates. The formation of ATP occurs by combining adenosine di-
2
Anaerobic Power
phosphate (ADP) and inorganic phosphate (Pi) and requires energy” (48). ATP being
broken down to ADP + Pi very quickly by creatine kinase, so PC is responsible for the
synthesis of ATP. Muscle cells are only capable of storing a small amount of ATP for
short bouts of exercise leading to the activation of the next system. Anaerobic glycolysis
produces two molecules of ATP and two molecules of pyruvate. The first step of
glycolysis is the phosphorylation of ATP producing an activated molecule.
Rearrangement, followed by a second phosphorylation by ATP, gives fructose-1, 6 bi-
phosphate. The 6-carbon molecule is split into two 3-carbon Glyceraldehyde 3-Phosphate
molecules. Oxidation, followed by phosphorylation, produces 2 NADH molecules and 2
high-energy bi-phosphoglycerate molecules. Removal of 2 energized phosphate groups
by 2 ADP molecules produces 2 ATP molecules and 2 3-phosphoglycerate molecules.
Oxidation by removal of water produces 2 high-energy phosphoenolpyruvate molecules.
The removal of 2 energized phosphate groups by 2 ADP molecules produces 2 ATP
molecules. Pyruvate is the end product of glycolysis. If the physical activity were
prolonged, oxygen would be present and the energy system would be converted into the
Krebs Cycle and Electron Transport Chain.
The three types of tests that we used to test anaerobic power (W) were the 40-
meter Dash (40m), the Margaria Power Test (MPT), and the Vertical Jump Test (VJT).
The ATP-CP system utilizes fast twitch muscles, performing high intensity exercise for
short durations. These tests measured anaerobic power utilizing this system because the
exercise lasts under 15 seconds. The tests are dependent upon the capacity and rate of
phosphagens-adenosinetriphosphate and creatine phosphate break down. A submaximal
yet high velocity activity such as sprinting is more dependent upon the rate of the
3
Anaerobic Power
myosin-actin interaction rather than the number of interactions. Fast twitch muscle fibers
(IIa and IIx) predominate in anaerobic activities. These muscle fibers fatigue sooner than
slow twitch (type I) aerobic fibers because they create the rapid forces that are necessary
for anaerobic power activities.
The purpose of our study was to determine the better predictor of the 40m in
terms of absolute anaerobic power (W) and relative power (W/kg). We predicted that the
VJT will have a greater correlation to the 40m in terms of absolute anaerobic power (W)
and relative power(W/kg). We also predicted that in terms of absolute (W) and
relative(W/kg) power males will have produced greater power than females.
Methods
Subjects
The subjects were 15 California State University of Los Angeles
Kinesiology/Exercise Science major around college age students, with an average weight.
( 82.245 kg ± 16.66 ).
Equipment
The equipment used for the 40m included the CSULA track, a stopwatch,
measuring tape, and two cones. For the equipment used for the MPT the CSULA main
gym stair case was utilize, a stopwatch, and measuring tape. The VPT utilized the
CSULA biomechanics lab-test and the ADAS system- force plates were utilized to
conduct the test.
4
Anaerobic Power
Protocol
40m Dash “Horizontal Power”
For the 40m the participants performed a warm-up routine. The three timers stand
at locations suitable for their view of the participant’s start and finish. One timer was at
the 40 yard mark (40m), second was at the 50 yard mark (50m) and the last one was at
the 60 yard mark (60m). The sprinter was required to lower the center of gravity by
leaning slightly forward at the starting line. The timers started their watches at the first
starting movement of the sprinter. It was required for each sprinter to run as fast as
possible from the starting line to the finishing line. As soon as the sprinter would break
the plane of finish line, the timers stopped the time. The end time was recorded by the
sprinter. The equations used for the 40m sprint test was: Horizontal Power (W) = Body
Mass (N) x Average Speed (m/s)
The Margaria Power Test
The MPT began as a general warm-up of 5 to 10 minutes, which included running
up the stairs three times. The weight of each participant was measured prior to the test.
The height of each step was measured and the elevation from the third step to the ninth
step was calculated. During the test the timer start mechanism switcher was unavailable,
so the lab facilitator recorded the times. When the participant was ready, the athlete
sprinted towards the stairs from a standing start 20 feet away from the base of the stairs.
Each subject sprinted up the staircase three steps at a time as fast as possible. The time
from third to ninth step contact was recorded. Each subject performed the test 10 times
with a 2-3 minute recovery between trials. The equation used for the margarita power test
was: Power (W) = Weight (N) x Elevation (m) / Time (s)
5
Anaerobic Power
Vertical Jump Test
The protocol used for the VPT began with a warm up. Each subject performed
five warm-up jumps. During the warm-up phase the first jump was perform at a 50% max
effort, the second at a 75% effort, and the last one at a 100% max effort. After the warm-
up was done, each subject was to step on force plate. Instructor needed to give the signal
in order for the subject to jump and start the test. For each vertical jump the subject
needed to have a 20 seconds resting period between each trial. While performing each
jump the subject performed a counter movement squat and jumped following with
swinging arms upward to reach high as possible. After the jump the subject needed to
land with the knees bent in order to enhance the absorption of forces. The equation used
for the test was: Power (W) = Body Weight (Kg) x Jump height (m) time (s)
Data Analysis
Microsoft Excel was used for the correlation(r) graphs and for the independent
sample two-tailed t-test. Significance was accepted at an alpha level p<0.05 (95% of
results are not due to coincidence)
6
Anaerobic Power
Results
1,000.00 2,000.00 3,000.00 4,000.00 5,000.00 6,000.00 7,000.00 8,000.00 9,000.000.00
500.00
1,000.00
1,500.00
2,000.00
2,500.00
Absolute Margaria Power Test vs Abso-lute 40m Dash
Absolute Margaria Power Test(W)
Ab
solu
te 4
0m
Das
h(W
)
r=0.98
Figure 1 above shows a strong (+) correlation of the Absolute 40m Dash vs. Absolute Margaria Power Test with an R-value of 0.98. The Margaria Power Test is on the x-axis and the Absolute 40m Dash is on the Y-axis.
0 500 1000 1500 2000 2500 3000 35000.00
1,000.002,000.003,000.004,000.005,000.006,000.007,000.008,000.009,000.00
Absolute 40m Dash vs Absolute Ver-tical Jump Test
Absolute Vertical Jump Test(W)
Ab
solu
te 4
0 m
eter
Das
h(W
)
r=0.30
7
Anaerobic Power
Figure 2 above shows a weak (+) correlation of the Absolute 40m Dash vs. Absolute Vertical Jump Test with an R-value of 0.30. The Absolute Vertical Jump Test is on the x-axis and the Absolute 40m Dash is on the Y-axis.
0 500 1000 1500 2000 2500 3000 35000.00
500.00
1,000.00
1,500.00
2,000.00
2,500.00
Absolute Margaria Power Test vs Abso-lute Vertical Jump Test
Absolute Vertical Jump Test(W)
Ab
solu
te M
arga
ria
Pow
er T
est(
W) r=0.29
Figure 3 above shows a weak (+) correlation of the Absolute Margaria Power Test vs Absolute Vertical Jump Test with an R-value of 0.29. The Absolute Vertical Jump Test is on the x-axis and the Absolute Margaria Power test is on the Y-axis.
50 55 60 65 70 75 80 85 900
5
10
15
20
25
30
Relative 40m Dash vs Relative Margaria Power Test
Relative Margaria Power Test(W/kg)
Rel
ativ
e 4
0m
Das
h(W
/kg)
r=0.64
8
Anaerobic Power
Figure 4 above shows a moderately weak (+) correlation of the Relative 40m Dash vs. Relative Margaria Power Test with an R-value of 0.64. The Relative Power Test is on the x-axis and the Relative 40m Dash is on the Y-axis.
0 5 10 15 20 25 30 3550
55
60
65
70
75
80
85
90
Relative 40m Dash vs Relative Vertical Jump Test
Relative Vertical Jump Test(W/kg)
Rel
ativ
e 4
0m
Das
h(W
/kg)
r=0.41
Figure 5 above shows a weak (-) correlation of the Relative 40m Dash vs. Relative Vertical Jump Test with an R-value of 0.41. The Relative Vertical Test is on the x-axis and the Relative 40m Dash is on the Y-axis.
0 5 10 15 20 25 300
5
10
15
20
25
30
35
Relative Margaria Power Test vs Rel-ative Vertical Jump Test
Relative Vertical Jump Test(W/kg)
Rel
ativ
e M
arga
ria
Pow
er T
est(
W/k
g)
r=0.14
9
Anaerobic Power
Figure 6 above shows a weak (+) correlation of the Relative Margaria Power Test vs. Relative Vertical Jump Test with an R-value of 0.14. The Relative Vertical Test is on the x-axis and the Relative Margaria Power Test is on the Y-axis.
40 50 60 70 80 90 100 110 1200.00
1,000.00
2,000.00
3,000.00
4,000.00
5,000.00
6,000.00
7,000.00
8,000.00
9,000.00
Absolute 40m Dash vs Weight
Weight(kg)
Ab
solu
te 4
0m
Das
h(W
)
r=0.29
Figure 7 above shows a weak (+) correlation of the Absolute 40m Dash vs. Weight with an R-value of 0.29. The Weight is on the x-axis and the Absolute 40m Dash is on the Y-axis.
40 50 60 70 80 90 100 110 1200.00
500.00
1,000.00
1,500.00
2,000.00
2,500.00
Margaria Power Test vs Weight
Weight (Kg)
Mar
gari
a P
ower
Tes
t (W
)
r=0.34
10
Anaerobic Power
Figure 8 above shows a weak (+) correlation of the Margaria Power Test vs. Weight with an R-value of 0.34. The Weight is on the x-axis and the Margaria Power Test is on the Y-axis.
40 50 60 70 80 90 100 110 1200
500
1000
1500
2000
2500
3000
3500
Absolute Vertical Jump Test vs Weight
Weight (Kg)
Ab
solu
te V
erti
cal J
um
p T
est
(W)
r=0.32
Figure 9 above shows a weak (+) correlation of the Absolute Vertical Jump Test vs. Weight with an R-value of 0.32. The Weight is on the x-axis and the Absolute Vertical Jump Test is on the Y-axis.
40 50 60 70 80 90 100 110 1200
10
20
30
40
50
60
70
80
90
Relative 40m Dash vs Weight
Weight(Kg)
Rel
ativ
e 4
0m
Das
h (
W/k
g)
r=0.49
11
Anaerobic Power
Figure 10 above shows a weak (+) correlation of the Relative 40m Dash vs. Weight with an R-value of 0.49. The Weight is on the x-axis and the Relative 40m Dash is on the Y-axis.
40 50 60 70 80 90 100 110 1200
5
10
15
20
25
30
Relative Margaria Power Test vs Weight
Weight (Kg)
Rel
ativ
e M
arga
ria
Pow
er T
est(
W/k
g)
r=0.26
Figure 11 above shows a weak (+) correlation of the Relative Margaria Power Test vs. Weight with an R-value of 0.26. The Weight is on the x-axis and the Relative Margaria Power Test is on the Y-axis.
40 50 60 70 80 90 100 110 1200
5
10
15
20
25
30
35
Relative Vertical Jump Test vs Weight
Weight(Kg)
Rel
ativ
e V
erti
cal J
um
p T
est(
W/k
g)
r=0.26
12
Anaerobic Power
Figure 12 above shows a weak (+) correlation of the Relative Vertical Jump Test vs. Weight with an R-value of 0.26. The Weight is on the x-axis and the Relative Vertical Jump Test is on the Y-axis.
0.00
1,000.00
2,000.00
3,000.00
4,000.00
5,000.00
6,000.00
7,000.00Absolute 40m Male vs Female
Gender
Ab
solu
te 4
0m
(W
)
P≤0.05
6,251.27
4,217.20
*
M F
Figure 13 above shows a bar graph representing Male vs. Female Absolute 40m(w). It shows significant of P≤0.05, The Absolute 40m(w) is under y-axis and the average and gender are labeled on the x-axis.
0.00200.00400.00600.00800.00
1,000.001,200.001,400.001,600.00
Absolute Margaria Power Test Male vs Female
Gender
Ab
solu
te M
arga
ria
Pow
er T
est(
W)
P≤0.05
1,381.86 652.51
*
M F
Figure 14 above shows a bar graph representing Male vs. Female Absolute Margaria Power Test (W). It shows a significant value of P≤0.05, the absolute
13
Anaerobic Power
40m(W) is under the y-axis and the average value and gender are labeled on the x-axis
0200400600800
10001200140016001800
Absolute Vertical Jump Test Male vs Female
Gender
Ab
solu
te V
erti
cal J
um
p t
est
1568.41 1002.465
P≤0.23
M F
Figure 15 above shows a bar graph representing Male vs. Female Absolute Vertical Jump Test (W). It shows an insignificant value of P=0.23, there was no significance found, the Absolute Vertical Jump Test (W) is under the y-axis and the average value and gender are labeled on the x-axis
0102030405060708090
Relative 40m Dash Male vs Female
Gender
Rel
ativ
e 4
0m
Das
h (
W/k
g)
77.08 60.97
P≤ 0.05
*
M F
Figure 16 above shows a bar graph representing Male vs. Female Relative 40m Dash (W/kg). It shows a significant value of P≤0.05.The Relative 40m Dash (W/kg) is under the y-axis and the average value and gender are labeled on the x-axis
14
Anaerobic Power
02468
1012141618
Relative Margaria Power Test Male vs Female
Gender
Rel
ativ
e M
arga
ria
Pow
er T
est
(W/k
g)
15.58 9.93
P≤0.05
*
M F
Figure 17 above shows a bar graph representing Male vs. Female Relative Margaria Power Test (W). It shows a significant value of P≤0.05, the Relative 40m(W) is under the y-axis and the average value and gender are labeled on the x-axis
02468
10121416
Relative Vertical Jump Test Male vs Female
Gender
Rel
ativ
e V
erti
cal J
um
p T
est(
W/k
g)
14.18 8.28
P≤0.09
M
F
Figure 18 above shows a bar graph representing Male vs. Female Relative Vertical Jump Test (W/kg). It shows an insignificant value of P=0.09, there was so significance found, the Relative Vertical Jump Test (W/kg) is under the y-axis and the average value and gender are labeled on the x-axis
15
Anaerobic Power
Discussion
The purpose of this study was to test the absolute (W) and relative (W/kg)
anaerobic power of the VJT, the MPT, and the 40m. The hypothesis stated that the VJT
would have a stronger correlation to the 40m than the MPT in regards to absolute (W)
and relative(W/kg) power output; and males were predicted to produce higher
absolute(W) and relative(W/kg) power outputs than females. The first hypothesis was
proven false because the results showed that the MPT had a stronger correlation to the
40m-dash than the VJT. The second hypothesis was proven correct because the males
produced higher power (W) outputs than females. Figures 1-3 compared the absolute (W)
power results of each test and have r-values of 0.98, 0.3 and 0.29 respectively. Figures 4-
6 compared the relative (W/kg) power results of each test and have r-values of 0.64, 0.41,
and 0.14 respectively. The weights of subjects were compared to the absolute (W) power
of each test in figures 7-9 with r-values of 0.29, 0.34 and 0.32 respectively. Figures 10-12
compared the weight to the relative (W/kg) power with r-values of 0.49, 0.26, and 0.26
respectively. Figures 13-15 compared the absolute (W) power outputs of males and
females with p-values of 0.04, 0.01 and 0.23 respectively. Figures 16-18 compare the
relative (W/kg) power outputs of males and females with p-values of 7x10-5, 0.04, and
0.09 respectively. Results in figure 1 show that the MPT and the 40m had a strong
correlation (r=0.98) in contrast to the VJT (figure 2), which had a weak correlation
(r=0.30). In terms of relative (W/kg) power, the MPT also had a higher correlation to the
40m(r=0.64) than the VJT (r=0.410). These results concluded that the MPT had a greater
correlation to the 40m in both absolute (W) and relative (W/kg) power than the VJT. The
relationship between the MPT and the 40m was greater than the VPT because of the
16
Anaerobic Power
musculature of the individuals and the exercise itself. The 40m required a full vertical
power sprint, which may relate to the MPT more than to the VJT. The VJT required the
individual to only perform a squat and jump at their highest potential. The MPT was a
full power sprint up stairs. The exercises necessary for each test required the assistance of
different muscle groups, ones more dominant than others. The muscles required for a
jump, dominantly are the gluteus maximus, medius, and quadriceps muscles. The
dominant muscles for running are the gastrocnemius, quadriceps, gluteus maximus and
hamstrings. The amount of muscle groups participating and their size impact the amount
of power (W) output. Relatively, the 40m and the MPT were the most similar in exercise
activities to test the power (W) outputs, thus using the same muscle masses. In contrast,
the VJT may calculate anaerobic power (W) but the exercise is limited to particular
muscles, which differ to the 40m. Results then conclude that the MPT is a better
comparison to the 40m in regards to absolute (W) and relative (W/kg) power than the
VJT. Testing the power (W) output in male and female subjects concluded that males
produced higher outputs than females. Physiological differences between men and
women are imposed by the nature of their sex. Sex hormones such as testosterone is
significant for large musculature maintenance in males, one that females lack. The
development of the body stays true to its nature that of females must conceive giving
them a softer musculature. Size and length of muscles impact the force produced. Studies
have shown that males will usually have longer and larger muscles (Mangine et al.,
2014). In addition, muscular asymmetry has been shown to be more common in females
than in males, lowering the amount of power(W) produced during an exercise.
Consequently, males produce more absolute(W) and relative(W/kg) power than females.
17
Anaerobic Power
The study, “Development of a modified Margaria anaerobic power test for
American football athletes” (Hetzler et al., 2010), tested the power (W) and accuracy of
the MPT on football athletes. The assessment used four anaerobic power tests: football
stair climb test (FST) protocol, a modified version of the MPT, the VJT and a 36.6-m
dash test. The study measured the number of repetitions required to produce the maximal
anaerobic power (W) before reaching fatigue as well as the reliability of the MPT. The
study also measured the relationship between the peak power and the players’ positions.
The MPT was considered to better predict both horizontal and vertical power than other
anaerobic power tests. Results indicated that the MPT did not result to be the best to
measure maximal power (W); yet the football stair climb test(FST) protocol showed a
better assessment. Another study, “Influence of gender and muscle architecture
asymmetry on jump and sprint performance,” (Mangine et al., 2014) assessed the
muscular asymmetry and gender difference with the vertical jump power test and a short
distance sprinting speed. By measuring the muscle mass of the rectus femoris and vastus
lateralis and considering the positive correlation of muscle mass and power, the study
believed that males would have the highest musculature, thus the highest anaerobic
power (W). The tests assessed that indeed, men did have greater musculature due to
greater jumping power and faster times in the 30-m dash in comparison to females. Males
also tended to be muscularly symmetrical in the lower limbs, indicating more control and
power. The article states characteristics of musculature that may contribute to power and
strength. Greater muscle size, quality and length were factors that greatly influenced the
force and power production, thus determining physical performance (Mangine et al.,
2014). Musculature is influenced by the individual’s “physical activity, training status,
18
Anaerobic Power
and gender” (Mangine et al., 2014). Physiological developments of individuals may vary
but they run consistent similarities among each gender, which affect the muscular
structure that input into these power tests.
There were limitations that were encountered while performing the tests that
could have altered the results. During the 40m testing, the track utilized was unavailable
and limited the time available to test. Subsequently, less tests were performed to fulfill
the agenda for that day. Since less tests were performed, the average may not have been
true to the potential of the individual, fluctuating the results of their calculations. For the
MPT, recording the time was done manually with a timer. Predicting the right moment to
start and stop the timer while climbing the stairs was relied upon the eye of the person
timing. This could have curved the numerical results of power (W) that were later
calculated. Also, for all three tests, the subjects possibly did not perform a well-rounded
warm-up to prepare them for the exercise that followed. Their physical performance may
have been altered, and their power (W) was not accurate. Additionally, the subjects’
health status was not taken into consideration. Whether the subjects were not healthy or if
there were any physical impairment, any of these factors could have affected their
physical performance during the exercises. For example, if a subject suffered from
asthma or if a subject had a physical injury on their leg, they would be impaired from
performing the exercise at their highest potential, skewing the results of power (W)
output.
Conclusion
The main finding was to test and compare relative (W/kg) and absolute(W)
anaerobic power (W) on the VPT, the 40m and MPT. We hypothesized that the VJT
19
Anaerobic Power
would have a stronger correlation to the 40m than the MPT in regards to absolute(W) and
relative(W/kg) power(W) output; and males were predicted to produce the highest
absolute(W) and relative(W/kg) power(W) outputs.
We learned that the VJT, needed to utilize the subjects’ energies at a very fast
pace to complete the performance. Not only that, but in all three tests if the subject had an
injured knee it influences the performance. The MPT affected the subjects cognitively
because they feared falling or tripping on the steps; a factor that could impact
performance psychologically. The subject might have not known how many steps they
should be skipping in their mind, thus their split-second decision of starting causes them
to slow down, and rethink on their speed while climbing up the stairs resulting in a
slower time rate. We would recommend the subjects needed to eat enough food in order
to expend their energy more efficiently in each of these tests. We also recommend that
proper equipment should be used for more accurate results. Future studies should look
into expanding accuracy and completely eliminating human error in the Margaria test.
20
Anaerobic Power
References
Hetzler, R. K., Vogelpohl, R. E., Stickley, C. D., Kuramoto, A. N., Delaura, M. R., &
Kimura, I. F. (2010). Development of a Modified Margaria-Kalamen
Anaerobic Power Test for American Football Athletes. Journal of Strength
and Conditioning Research, 24(4), 978-984.
Mangine, G. T., Fukuda, D. H., LaMonica, M. B., Gonzalez, A. M., Wells, A. J., Townsend,
J. R., . . . Hoffman, J. R. (2014). Influence of Gender and Muscle Architecture
Asymmetry on Jump and Sprint Performance. Journal of Sports Science and
Medicine, 904-911.
Powers, S. K., & Howley, E. T. (2015). Exercise Physiology: Theory and Application to
Fitness and Performance. Boston: McGraw-Hill.
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