Activation of selected Shoulder Muscle according to Posture during upper quarter Y Balance Exercise
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The objective of this research is to examine the effectiveness of push up exercise by intervention in dynamic form by using upper quarter Y-balance exercise.
In this research, experiment of healthy 34 people of 17 male and 17 female who agreed to participate was conducted after pre-inspection. The experiment examined the muscle activity of serratus anterior, upper trapezius, pectoralis major, triceps brachii, anterior deltoid, posterior deltoid and biceps brachii by interventional the direction of lateral, superomedial, and inferomedial of upper quarter Y-balance exercise in traditional push up(TPU) form and wall push up(WPU) form.
In result, when intervention of TPU and WPU were compared in lateral direction triceps brachii and upper trapezius was in superomedial direction anterior deltoid and serratus anterior were and in inferomedial direction were showing the significant difference. When intervention of TPU and WPU were compared TPU was a significant difference between posterior deltoid and biceps brachii and when upper quarter Y-balance exercise intervented WPU muscular activation of posterior deltoid and triceps brachii showed significant difference.
It was verified that utilizing directionality of dynamic form on stability muscle of shoulder can be selectively strengthened when upper quarter Y-balance exercise was applied.
WPU, TPU, Upper quarter Y-balance exercise, Upper trapezius, Serratus anterior, Dynamic.