The Effectiveness of the “Kenova” Program for Analyzing the Movement of the Two Curled Back Antennae in Gymnastics

This study aimed to identify (the effectiveness of the “Kenova” program
for analyzing the movement of the “two back antennas” in the sport of
gymnastics) in addition to identifying some kinematic variables
(maximum vertical height, displacement, rotational inertia, acceleration
rate, important angles of movement and moment of inertia). The study
sample was limited to the Palestinian gymnastics team player who was
selected intentionally. In order to analyze the results, Kenova movement
analysis program was adopted in addition to the player’s anthropometric
measurements. The results showed the possibility of analyzing the
movement of the two back antennas, depending on the movement
analysis program and there were deficiencies in Kenova program in
measuring and analyzing some variables. Moreover, results showed that
the angle at which the athlete ascended was = 25 degrees, the vertical
height of the athlete in flight while performing the movement of the two
curved rear antennas reached (219.12) cm from the ground, the athlete’s
displacement during flight reached (181.51) cm, the radius came in the
first air cycle was (56.7) cm, and it took 360 degrees, time 1 = 16
seconds, the radius of the second air cycle was (40.6) cm, and it took 360
degrees, time 2 = (11.26) seconds, as the cycle was not completed,
reaching only half a turn of 180 degrees, that is, it reached time taken
(5.13).while the moment of inertia in the first airframe was 18.64 kg/m2,
and in the second airframe it was greater than the moment of inertia in the
second air force which was 9.56 kg/m2. The rate of acceleration in the
first airframe was 287.15 m/s2, less than the acceleration of the second
airway, which was 414.33 m/s2, which is greater than the acceleration in
the first airway. It was concluded that as the radius decreases, the moment
of inertia decreases, thus the speed increases. Several suggestions have
been recommended, the most important is choosing advanced analysis
program which measures three dimensions, as Kenova could only
measure from one side. The importance of movement analysis in the
training process was emphasized, particularly in gymnastics because of
its ability to discover shortcomings and weak points that are not apparent
in training.