I describe about sprinting 100m

1. Can you run faster?
Professor Christopher YUKNA
EMSE
Master course of material science and technology
Yoshiki SHIMADA

2. Contents
Introduction
Analysis
Problems
Suggestion
Improvement method
Conclusions
Prediction

3. Introduction
100m
World record: 9.58
Japanese record: 10.00
My record: 10.90

4. Analysis
100m
One race…
I ran 100m at 10.90s
0~50m: 5.82s
50~100m: 5.08s
Usually top of Japanese sprinters can run 50m at around 5.8s

5. Problems
0m
50m
Problem is the velocity from 50m to 100m
100m

6. Problems
velocity(m/s)
(t=10.90s)
distance(m)
Fig. curve of velocity
The max of velocity appear at point of 50m

7. velocity(m/s)
Problems
distance(m)
Fig. curve of velocity
It is necessary to keep the energy to enhance the max of velocity

8. Problem
100m
Stamina is limited
If I sprint at the early point
I waste much energy and it leads to decrease the velocity

9. 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 stride
Enhance the stride frequency
Both factor

10. 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

11. Improvement method to enhance the stride frequency
1.9m
1.9m
1.9m
1.9m
Run downhill
1.9m
1.9m

12. conclusions
The velocity depend on “stride” and “stride frequency”
I have to chose training depending on the purpose

13. Prediction
I will be more faster by following my opinion
10.90s
10.75s

14. Thank you
yshimada79@gmail.com