Effect of the Pes Planus on Vertical Jump Height and Lower Extremity Muscle Activation in Gymnasts

Authors : Nurcan CONTARLI, Tamer ÇANKAYA

Pages : 81-89

View : 38 | Download : 11

Publication Date : 2022-04-30

Article Type : Research Paper

Abstract :Gymnastics is an aesthetic olympic branch where systematic and rhythmic movements are performed at high levels in harmony with the body insert ignore into journalissuearticles values(19);. It is a popular sport requires a combination of physical fitness components such as speed, agility, strength, balance and flexibility. Especially, lower extremity alignment can affect successful performance in gymnasts insert ignore into journalissuearticles values(6);. Pes planus is generally defined as a postural disorder caused by lowering or absence of the medial longitudinal arch height of the foot insert ignore into journalissuearticles values(17);. Although there are many studies that try to explain the cause of pes planus; a clear etiological cause, which is accepted and agreed upon today cannot be presented insert ignore into journalissuearticles values(9,11,23,27);. For the diagnosis of pes planus; clinical measurement and examination, radiological and ultrasonographic methods are used. In addition, it was evaluated with methods such as ink footprint methods, digital pressure measurements and podoscope insert ignore into journalissuearticles values(22,24);. Calculations such as Clark angle, Chippaux-Smirak Index and Shateli Index are used in the evaluation of pes planus insert ignore into journalissuearticles values(22);. The muscle function of the lower extremity is affected by the structure of the foot. In a foot with pes planus, the load on the foot cannot be evenly distributed. Therefore, muscles and other structures provide compensation to meet this irregularity. In the studies on pes planus, EMG method was used to investigate the structural deformity of the foot and the changes in the activities of the lower extremity muscles during walking or jumping insert ignore into journalissuearticles values(10,12,15,16);. Electromyography insert ignore into journalissuearticles values(EMG); is the science of recording and interpreting the electrical activity of muscles. In recent years, EMG studies have provided an important perspective in understanding muscle functions and have been accepted as the golden key in recording muscle activity insert ignore into journalissuearticles values(25);. Surface electromyography insert ignore into journalissuearticles values(sEMG); is used to examine the neuromuscular activation of the muscles that function in functional movement, balance-related situations and in the training of athletes insert ignore into journalissuearticles values(4,13);. Jumping is a movement that an individual has made against his or her own body weight. Jumping performance depends on features such as muscle strength, explosive speed, flexibility, body anthropometry and motor coordination insert ignore into journalissuearticles values(8,18);. Jumping is an important motor skill in all gymnastics disciplines and has a decisive role in performance insert ignore into journalissuearticles values(18);. This study aims to determine the effect of the presence of pes planus on vertical jump height and muscle activation in gymnasts.
Keywords : Gymnasts, Pes Planus, Vertical Jump, Muscle Activation

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