Special training according to targeted distances and times to develop speed endurance, some biomechanical variables, and achievement of running 400 M. hurdles for juniors

Abstract

The study aimed to prepare special exercises according to targeted distances and times to develop speed endurance and some biomechanical variables and the achievement of running 400 m. hurdles for juniors as well as to identify the impact of those exercises, the authors assumed that there are statistically significant differences between measurements and pre-post tests in speed endurance and some biomechanical variables and achievement of running 400 m. hurdles for juniors, the authors followed the experimental approach in the manner of one group with pre- and post-test, either the research sample was determined by (5) runners From the runners of the National Center of Sports Talent in Iraq in the province of Baghdad in 400 m. hurdles for juniors, the authors conducted special tests on the sample, which is to test (250 m and 350 m) in measuring speed endurance, and the achievement of a distance of 400 m. hurdles, as well as measuring some biomechanical variables, the authors followed the application of their exercises for 8 weeks distributed over 3 sessions per week, after the completion of the application of exercises and conducting post-tests, The results were extracted by appropriate statistical means, and the results showed that there is a development in the variables of speed endurance, achievement, and some biomechanical variables for the sample, the authors concluded that training at targeted distances and targeted standard times contribute to the development such as speed endurance and some biomechanical variables and achievement.