Effectiveness of CrossFit drills on muscular endurance and Consecutive attempts cases for youth weightlifters

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CrossFit is a recently method used in sports training its usually used in aerobic sports cause of its effect in endurance but its effect on professional weightlifters still unknown, not only on their physical fitness but also on consecutive attempts cases. Objectives: to determine the effect of using CrossFit drills on muscular endurance and numbers of successful attempts in consecutive attempts cases. Methods: the experimental approach used due to its suitability to research nature with two groups design. Participants: sample includes 22 youth weightlifters selected intentionally aged (15.590 ± 0.834), grouped into two groups every group includes 11 weightlifters. Main outcomes measures: for muscular endurance, clean repetition test, jerk repetition test, snatch repetition test, front squat repetition test, back squat repetition test and clean pull up (deadlift) repetition test, and for consecutive attempts competition simulation in snatch and clean and jerk. Results: there are significant differences between the tests results of the two groups because the whole tests values were over the 1.769 (T. test table value), improvements of muscular endurance percent were from 15.104% to 43.617% and for consecutive attempts from 63.158% to 76.471%. Conclusion the CrossFit program is a successful method in training professional weightlifters to improve their fitness, performance and competition results, so we recommended using this method in weightlifting training

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