ANALYTICAL STUDY OF SOME STEP VARIABLES AND RATE SPEED RUNNING THE 200-METER EFFICIENCY CURVE AND ACHIEVEMENT

Abstract

Athletics events are distinguished by their digital achievements (fastest, farthest, highest). Among these events is the 200-meter running event, which has a special nature because the athlete runs the first half in the form of an arc and the second half in the form of a straight line. The variables that occur during arc running on the runner’s body play a major role in the achievement through the mechanical position of the runner’s body during arc running. . The importance of the current research lies in the fact that arch running in the (200 m) is different from running events, so the mechanical conditions are more difficult for the 200 m runner than for the rest of the runners of longer-distance events. Therefore, the research problem focused on studying some of the biomechanical variables in running the arc (200 m). Which affects the mechanical situation and its relationship to achievement. The study aimed to know the effect of the variables studied in the curve time of (100 m) and completion of (200 m), on the players of the national athletics team in running (200) meters, numbering (4) competitors. After anthropometric measurements were taken of the players, a field experiment was conducted in a monument Eleven cameras were used to photograph the curve for the first and second distances of (100 metres) to measure the variables of the study (step - average speed for completing 200 metres). By processing the results, the researcher concluded that there was a fluctuation in speed between increase and decrease in the areas that the researcher specified for every (10 metres), as well as The exaggerated increase in stride length led to a decrease in speed and irregularity in stride length and number, which made the runner not run on a curved line adjacent to the field. Through the conclusions, the researcher recommends the need for our coaches to focus when training our runners on increasing speed (acceleration) in the arc, so that the runners continue at the same level after They must reach the highest speed, and there must be a clear plan for the runner so that he can cover the 200 meters at high speed and not exaggerate the stride length and focus on combining the appropriate stride length with high repetitions to obtain the highest speed in arc running