نتایج جستجو برای: Taekwondo
تعداد نتایج: 825 فیلتر نتایج به سال:
The purpose of this study is to identify the overall difficulties Taekwondo industry due COVID-19 situation and find ways improve total rewards working condition so that instructors can play their roles while maintaining self-esteem. method was a comparative U.S. Korea, which home country Taekwondo. For study, 12 American Korean were interviewed additional surveys conducted. As result, both pla...
The purpose of this study was to investigate joint kinematics of the kicking leg in Taekwondo and to examine the role of inter-joint coordination of the leg in producing the kicking velocity. A new inter-joint coordination index that encompasses three- dimensional hip and knee motions, was defined and applied to the joint kinematic results. Twelve elite Taekwondo athletes participated in this s...
abstract physical injuries during taekwondo competitions often happen due to physical contacts during fighting; therefore, a training protocol was designed in line with the physiological stress of a real competition according to la, hr and rpe changes so that the athletes could perform the techniques with a pad instead of a real opponent. for this purpose, 12 professional taekwondo players from...
Introdiction and Aim: Nowadays, due to the epidemic of sports supplements, the effects of these supplements on athletic performance require analysis and evaluation.The aim of the present study was to investigate the effect of arginine supplementation for one week on oxygen uptake kinetics and time to exhaustion in female taekwondo athletes. Method: In this semi-experimental study with prete...
Objective: The purpose of this study was to investigate the effect of eight-weeks of general preparation exercise on some selected biomechanical, anthropometrical and physiological parameters of the Iranian women’s national Taekwondo team. Methods: Nine elite members of Iranian women’s national Taekwondo team (age 23/22±1/98 years old, and weight 61/88±8/44 kg) partic...
IIntroduction Improving physical performance and delaying fatigue by using nutritional supplements always has been interesting in athletes. The aim of this study was to evaluate the effect of six weeks’ watermelon juice on nitric oxide and exercise performance in elite female taekwondo. Materials and Methods Twenty-five elite female taekwondo players (age 21.84±2.26 yrs; BMI 20.87±1.37 Kg/m2;...
BACKGROUND The decline in cognitive performance has been shown after fatiguing exercise. Branched-chain amino acids (BCAA) have been suggested to alleviate exercise-induced central fatigue. Arginine and citrulline could remove the excess NH3 accumulation accompanied with BCAA supplementation by increasing nitric oxide biosynthesis and/or urea cycle. The purpose of this study is to investigate t...
The dual-task methodology, conducting two tasks simultaneously, may provide better validity than the traditional single-task tests in the environment that is closely related to real sport competitions. The purpose of this study is to determine the reliability and validity of a dual-task test that aims to measure the reaction time and skill proficiency in roundhouse kicks in elite and sub-elite ...
Combat simulations have served as an alternative framework to study the cardiorespiratory demands of the activity in combat sports, but this setting imposes rule-restrictions that may compromise the competitiveness of the bouts. The aim of this study was to assess the cardiorespiratory responses to a full-contact taekwondo combat simulation using a safe and externally valid competitive setting....
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