can you run faster.3pptx
DESCRIPTION
I describe about sprinting 100mTRANSCRIPT
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Can you run faster?
Professor Christopher YUKNAEMSE
Master course of material science and technologyYoshiki SHIMADA
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Contents
AnalysisProblemsSuggestionImprovement methodConclusionsPrediction
Introduction
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Introduction
100m
World record: 9.58Japanese record: 10.00My record: 10.90
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Analysis
100m
One race…I ran 100m at 10.90s
0~50m: 5.82s50~100m: 5.08s
Usually top of Japanese sprinters can run 50m at around 5.8s
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Problems
50m0m 100m
Problem is the velocity from 50m to 100m
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Problemsve
loci
ty(m
/s)
distance(m)
(t=10.90s)
The max of velocity appear at point of 50m
Fig. curve of velocity
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Problemsve
loci
ty(m
/s)
distance(m)
Fig. curve of velocity
It is necessary to keep the energy to enhance the max of velocity
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Problem
100m
Stamina is limitedIf I sprint at the early point
I waste much energy and it leads to decrease the velocity
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Improvement method
Velocity(m/s) = Stride(m/step) × Stride frequency(step/sec)
Ex ) 2.20(m/step) × 4.8(step/sec)= 10.56(m/s) = 38.0(km/h)
I mean …
Expand the strideEnhance the stride frequency
Both factor
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Improvement method to expand the stride
2.00m 2.10m 2.20m 2.30m
Put some marks and increase distance gradually
Get used to running with broad stride
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Improvement method to enhance the stride frequency
Run downhill
1.9m 1.9m 1.9m 1.9m 1.9m 1.9m
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conclusions
The velocity depend on “stride” and “stride frequency”
I have to chose training depending on the purpose
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Prediction
I will be more faster by following my opinion
10.90s 10.75s