تأثير التدريبات مختلفة الشدة مع تقيد تدفق الدم الوريدي على القوة العضلية للرجلين و بعض المتغيرات الفسيولوجية و المستوي الرقمي لسباحي 400م مونو

Abstract EN

The research aims to identify "Effect of exercises of different intensity (high, moderate, low) with theBlood Flow Restriction venous on the muscular strength of legs (maximum static and kinetic strength, strength endurance, Explosive strength), some physiological variables (systolic and diastolic blood pressure, pulse after Effort, lactic acid, LDH dehydrogenate, prostaglandin, creatine kinase) and the record level of the 400m Mono-fin swimmers, The experimental approach was used in the experimental design of four groups, one of which was a control group and three experimental groups.

The research sample was chosen by the intentional method from the Ras Al-Bar Sports Club in Damietta Governorate for the under 17 years for 400-meter monofin swimmers who are registered with the Egyptian Federation for Diving and Rescue for the season training program 2021/2022, and the total sample size was (24) swimmers, who were randomly divided into four groups of equal number, each of whom consisted of (6) swimmers, A control group used different-intensity exercises without venous blood flow restriction, a first experimental group used high-intensity exercises with venous blood flow restriction, a second experimental group used moderately high-intensity exercises with venous blood flow restriction, and a third experimental group used low-intensity exercises with blood flow restriction Intravenous, in addition to selecting (6) swimmers for the exploratory study from the Future Sports Club and from outside the basic research sample and from the same age stage, where homogeneity and equivalence were conducted for them, The most important results were that the Kaatsu exercises (restricting the flow of pink blood) applied within the proposed training program have a positive effect between the pre and post measurements and in favor of the post measurements of the three experimental groups (high, moderate, low) intensity, in the development of muscular strength of the legs and some physiological variables and the record level of swimmers 400m monofin, and that the rates of improvement of the dimensional measurements among the three experimental groups were in favor of the dimensional measurements of the third experimental group (low intensity) as the highest percentage of improvement followed by (moderate intensity) followed by (high intensity), The research recommends the use of the subject training program, especially of low or moderate intensity with restriction of venous blood flow, to develop the muscular strength variables of the legs and some physiological variables for the 400m monofin swimmers.