using one of the cutting techniques perfectly.
Therefore, it takes strength, formation and speed of
the slamming motion.
The basic slam technique in judo is a procedure
from series of Kuzushi, tsukuri and kake motions.
After eliminating the opponent's equilibrium
(kuzushi), move the body to the attitude / position.
That is the technique when the uke loses its balance
(tsukuri). Then, proceed to the kick technique. The
pejudo must concentrate in mastery of tsukuri and
must refine the kake, repeat the uchical exercises to
accelerate and refine elements of kuzushi, Tsukuri,
and Kake.
Such basic techniques must be mastered by
every pejudo. In a game, slamming is very dominant
for gaining scores because slamming can break the
opponent's defense and accelerate the victory. So,
the technique must be trained and well controlled so
that the slamming is correct and accurate.
Previous research has been done by Walgito in
2000 who examined about the relation among team‘s
cohesion, self-efficacy and the achievement of water
polo team of participants at PON XV in Surabaya.
Further research was conducted by Yudi Kahfiyudi
in 2005 who examined the relation among strength
and elasticity and kickback techniques seoi nage in
judo, and the research conducted by Rahmawati in
2013 that examines the effect of explosive power,
the elasticity and reaction speed to the skills for
starting on swimming athletes at Ragunan Sports
School Jakarta.
In a judo match, a perfect slamming executed by
a tori (who slams) against his opponent (uke who
slams in practice), will win an ippon. In a judo
match, the author often see the judoka performing
one of many nage waza techniques, namely seoi
nage. In fact, this technique is offen used as a
flagship technique. This is possibly caused by the
beauty of this technique.
To be able to have such slamming technique,
there must be a physical training first, before the
training for other aspects. Only with good physical
condition, pejudo will be ready in doing the
exercises. From several components of existing
physical conditions, it can be classified that the
components of physical conditions that need to be
given in the slamming practice are strength,
formation and reaction speed because slamming
requires the basic components of physical strength,
velocity and reaction speed.
The strength, velocity and reaction speed are the
three body/physical components that are very
important in Judo, especially when for the
movements of pulling, lifting and slamming with
flexible body movements in joint space (without
having muscle tension, so there will be no
disturbance to the movement).
2 METHODS
This study uses survey method by looking at
causality between variables. Data analysis technique
used streaming model analysis path. This path
analysis technique can be used to test the direct
effect of strength, velocity and speed reaction on
seoi nage slamming technique.
The target population in this study was all
female athletes of lower and middle class who
participated in PORDA XII West Java Year 2014 in
Bekasi Regency. However, the accessible population
was judo ato of JIB judo association participating in
PORDA XII West Java Year 2014 in Bekasi
Regency, who used seitar nage technique as their
main weapon, as many as 20 people. The used
sampling technique was total sampling.
Strength variable was measured by hand grip
(Savva, 2014) and leg dynamometer test (Alvares,
2015) and abdominal strength test (Learman, 2015),
measured by sit and reach test (Ayala, 2012).
Variable of reaction velocity was measured with
whole body reaction test (Shibata, 2015) and the
variable of seoi nage technique was measured with
performance test of seoi nage skills. The used data
analysis techniques were SPSS 17.00 and Lisrel 8.80
program.
3 RESULTS AND DISCUSSION
From the data analysis result, there was obtained the
result of structural model along with coefficient of
path which was the research design. The
constellations are as follows:
Figure 1: Constellations of Relation among Variables X1,
X2, X3, and Y.
From the picture above, the path coefficient can
be summarized as follows:
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