DIFFERENCE BETWEEN MOVING FORWARD DIRECTION OF MOTION IN BASKETBALL DRIBBLING s1150047 Yuki Okazaki
Dec 04, 2014
DIFFERENCE BETWEEN MOVING FORWARD
DIRECTION OF MOTION IN BASKETBALL DRIBBLING
s1150047 Yuki Okazaki
ABSTRACT
I show how the differences between novice and experienced
arms dribbling basketball operations. VICON motion capture
system and force plate systems are used.
Markers attached to the joints of the human body motion capture
suit to wear first. And get moving on the force plate. 12 cameras
to shoot their movements, used to preserve the position
coordinates of markers in 3D space. Motion analysis based on the
data.I show how to use different arm action for beginners and
inexperienced basketball dribble.
INTRODUCTION
The basketball pass, dribble, shoot there are three
movements. Important to focus on dribbling and movement
that can change the course of the game in this.Can escape
dribble and pass and shoot. The firm also acquire experience
that is said to be so difficult. Compare the movements of
novice and experienced Therefore, to clarify the differences,
and to improve the technology for beginners.
EXPERIMENT
Subjects
Dribble moves to focus on important basketball moves. Because in order to change the course of dribbling
game is crucial. And because people are not experienced but difficult to pass and shoot with learning
differences.
Measurement system
This experiment was measured by the optical motion capture system produced by VICON in University-
Business Innovation Center in Aizu campus.
Motion capture system
The 12 infrared cameras were operated at a sampling frequency 120Hz,its frame rate is 0.0083 sec. A set of
motion capture suits used 39 markers in these experiments. 31 markers were located at each joint, and 8
markers were at their sports shoes.
Force plate system
The force plate system measured the floor reaction force of X-Y-Z directions with 14 plates located on the floor
of the capture room. When subjects pushed these plates, this system measured the reaction forces.
MEASURENEMT OBJECT
Getting them to cooperate with right-handed subjects,
focused on the right arm when dribbling the basketball.
Shoulder, elbow, wrist, back of the hand with a marker,
we compared the location of each of the three-dimensional
coordinates of the marker.
Then, the shoulder, elbow and wrist to see how
differences obtained using the angle of the inner product
formula.
ANALYSIS
I had to help each one by one inexperienced and experienced
basketball.
The experience was participating in a regular 11-year history of
basketball games. Is 174cm tall.
No experience is no history of basketball, which have done little
novice physical education. The height is 166cm.
RESULTS
Inexperienced person• Overall, small angle of the shoulder.• Shows only the angle of the shoulder at the highest point of the ball.• Y coordinate of the shoulder, elbow wrist (right) are all different
locations.• There are significant changes in wrist angle.
The experience• Greater overall angle of the shoulder.• To change the angle of the shoulder smoothly.• Wrist elbow is equal to the Y position coordinate direction of travel.• Little change is seen in wrist angle, change can be seen only when
you release the ball from the hand.
CONCLUSIONS
Inexperienced person• Not use too much shoulder and elbow, wrist with a dribble.• Has been dribbling out the direction perpendicular to the
forward progress of the shoulder, elbow wrist at all times.
The experience• Use the shoulder and elbow, wrist without dribbling to
much.• When the ball is attached to the hand, tend to be parallel to
the direction of travel to the elbows and wrists.