Wacharee Rittiwat. Biomechanical analysis of long jumpers male and female . Master's Degree(Sports Science). Mahidol University. : Mahidol University, 2003.
Biomechanical analysis of long jumpers male and female
Abstract:
The aim of this thesis was to study and compare the relevant kinematic
factors during takeoff which affect the distance jumped amongst 4 male and 4 female
national long jumpers. The factors under studies are take off velocity, takeoff angle
and height of the CG takeoff. During the instance of takeoff, a video camera was
used to capture the jumping sequence at 50 frames per second. This was repeated five
times under simulated competitive environments – i.e. competitive rules and
regulations applied. The statistical variables of this study are mean and standard
deviation of take off velocity take off angle and take off height of CG. Under the
stated conditions, it was found that the velocities, angles and Heights of CG during
takeoff amongst the National Male Long Jumpers were as follows; 8.67 ± 5.6m/s,
21.75 ± 0.36 degrees and 1.03 ± 1.98 m respectively. Results amongst the National
Female Long Jumpers were as follows: 7.66 ± 0.13 m/s, 21.75 ± 0.67 degrees and
0.99 m respectively.
This particular study examined the vital factors in the field event of long
jumping, namely the velocity, angle and height of CG during takeoff as well as their
effects on the distance jumped. The velocity and angle of CG during takeoff is of
great importance in the jumping action. Velocity of CG is of particular significance
as it has a direct effect on the distance jumped – the greater the velocity of CG, the
greater the distance jumped. The angle of takeoff for each athlete is dependant on
his/her particular physical build while the height of CG is dependent on the athlete’s
height as well as the athlete’s body posture during the jump. The research carried out
provided valuable information, through the data obtained, which can be utilized to
modify, improve and develop training methodologies to improve the performance of
national Thai athletes to a higher level. It will also serve as a practical model for the
training of young athletes which will eventually take on the role of national athletes in
the future.