Print ISSN: 1993-9345

Online ISSN: 2664-2514

Keywords : long jump


Relationship of Wait-Periods between attempts at approach speed and achievement for long jump and triple jump events, male and female, at the 2009 Berlin Championship

Hussein Mardan Omar; Raheem Ruwaih

Al-Rafidain Journal For Sport Sciences, 2021, Volume 24, Issue 73 syppl, Pages 87-105
DOI: 10.33899/rjss.2021.167769

 
     Waite-Periods is a rehabilitation periods in sports training science, but in competitions, Waite-Periods between attempts depend on the number of players involved and the legal time available to perform the event, and this period may be lengthened or shortened based on the number of participants as well as other topics such as the arrangement of tools, for example. During Waite-Periods player can exposed to psychological and physical fitness. It can be summarized by the problem that our lack of appropriate assessment of the mandatory Waite-Periods between attempts that were not taken into consideration could be an appropriate reason when training players in developing their achievement.
     The research aims to identify the time taken for Waite-Periods in the activities of long jump and triple jump for males and females, and the relation between some kinematic variables and achievement according to the Waite-Periods. The research hypotheses is, there is an inverse relation between the speed of the approaching and the length of Waite-Periods and achievement between one attempt and another in the activities of long jump and triple jump for males and females.
     The research sample consisted of the recorded numbers of male and female participants in the long jump and triple jump events at the 2009 Berlin Track and Field Games. If the successful attempts, whose times are monitored from the documentation of the attempted start times for each player in the long jump, (15) attempts for males and (12) attempts for females, in the triple jump, (16) Male attempt and (19) female attempt.
The Waite-Periods calculated between the attempt and next attempt of the player.
The least time to Waite-Periods in the long jump between the attempts of the player, (male and female) ranged (10.37min. - 11.30min.). As for the biggest Waite-Periods between the attempted player (male and female) ranged (18.30min. - 21.04min.), it is noted that the Waite-Periods for males is higher than the female to average. As for the triple jump, it turns out that the minimum Waite-Periods between the attempts of the player (male and female) ranged (9.67min. - 14.20min.). As for the largest Waite-Periods between the attempted player (male and female) ranged (18.61min. - 19.34min.), it is noted that the Waite-Periods for the male is higher than the female to average.
 
     The following was concluded:

There are large Waite-Periods that may reach more than (20 min) for the next attempt of the player himself
The difference in achievement between one attempt and another is not related to the Waite-Periods for the next attempt, as the achievement may decrease or increase.
The length of the Waite-Periods reversely affects the approach speed whenever we approach (11m. – 6m.), before the approaching plate for long jump in males.
The length of the Waite-Periods reversely affects the speed of approach whenever we get close to (6m, - 1m.) before the approach plate for triple jump in males.
In some individual cases, the Waite-Periods had a negative effect on achievement, at a rate of (61%) of the cases.

Study the contribution Rate of the momentum of some body segments of the overall momentum of the body to the stage of takeoff in the long jump

Nadia T. Noori; Thaer Ganem Mala Alow

Al-Rafidain Journal For Sport Sciences, 2011, Volume 17, Issue 56, Pages 22-35
DOI: 10.33899/rajsport.2011.6125

Abstract
The amount of movement has a significant impact on the achievement during the stage of takeoff in the long jump as a jumper in good performance in order to achieve the highest level of achievement and this requires the jumper to involve all segments of the body in performance. The research aims to identify the percentage contribution of the momentum of the body segments of the momentum the total for the body to the stage of takeoff of the long jump. And to identify the relationship with the momentum of the body and body segments with the level of achievement.
The researchers hypotheses that there is disparity between the proportion of the momentum of some segments of the body of the momentum overall in the stage of Takeoff of long jump, researchers used the descriptive approach is adequate to the nature of the research. The sample consists of (6) Jumpers of those who received the first six position in the Iraqi Championship, which was held on the Stadium of Arbil, sports Club, and in order to reach biomechanical analysis the researchers used video imaging and the following programs: I Film (Edit 1.3), Adobe Premier (6.5), ACD See (10), Photo Manager, Auto CAD (2007) and Microsoft Office Excel (2003). The researchers used statistical tools such as the following: The mean, standard deviation, simple correlation and the percentage of contribution.
The researchers found that the momentum of the trunk came in first place by a contribution of (0.985), and then came the head in the second by a contribution of (0,953). While the leading leg came third with a contribution of (0.938), after that the takeoff leg came fourthly with a contribution of (0.803) , While the arm that is contrary to the leading leg came fifth with a contribution of (0,749), finally came the arm that is contrary to the takeoff leg with a contribution of (0.080).

Some kinematic variables of the rising and flying phases and it relation with the level of achievement in long jump

Ammar A. Ehssan; Amar Ehsaan

Al-Rafidain Journal For Sport Sciences, 2006, Volume 12, Issue 42, Pages 28-46
DOI: 10.33899/rajsport.2006.5987

Abstract
The researcher aims at studying the values of some Kinematic variables such as the speed vector of the take –off phase , the momentary initial speed vector of the flying phase , and the angle of flying in long jump . It also aims at studying the relationship between the values of some of the Kinematic variables , and the level of achievement of the sample in the study .
The survey method has been employed within a descriptive approach . Six long – jump athletes participating in the advanced national club Championship constituted the sample of the study . Video – filming and film analysis have been used as means of data colecting. The statistical methods of the mathematical mean , the standard deviation, and the simple correlation coefficient (Pierson) have been employed to arrive at the result .
The researcher has arrived at the conclusion that there is abstract relationship holding between the speed vector of the rising phase , the momentary initial speed vector of the flying phase , and the level of achievement (which proved to be low in the subjects ) .
In this connection , the researchers recommended the use video filming and analysis in carrying out tests in order to find-out precisely the areas of errors , so as to overcome them and arrive at a better level of achievement