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I describe about sprinting 100m
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Can you run faster?
Professor Christopher YUKNAEMSE
Master course of material science and technologyYoshiki SHIMADA
Contents
AnalysisProblemsSuggestionImprovement methodConclusionsPrediction
Introduction
Introduction
100m
World record: 9.58Japanese record: 10.00My record: 10.90
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
Problems
50m0m 100m
Problem is the velocity from 50m to 100m
Problemsve
loci
ty(m
/s)
distance(m)
(t=10.90s)
The max of velocity appear at point of 50m
Fig. curve of velocity
Problemsve
loci
ty(m
/s)
distance(m)
Fig. curve of velocity
It is necessary to keep the energy to enhance the max of velocity
Problem
100m
Stamina is limitedIf I sprint at the early point
I waste much energy and it leads to decrease the velocity
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
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
Improvement method to enhance the stride frequency
Run downhill
1.9m 1.9m 1.9m 1.9m 1.9m 1.9m
conclusions
The velocity depend on “stride” and “stride frequency”
I have to chose training depending on the purpose
Prediction
I will be more faster by following my opinion
10.90s 10.75s
Thank you