Purpose: Sub-acromial impingement syndrome [SIS] is one of the most common causes of shoulder pain, which affects shoulder joint proprioception. Closed kinetic chain [CKC] exercises with a Sling are more effective and safer than open kinetic chain [OKC] exercises. This study aimed to compare the efficiency of OKC and Sling exercises [TRX] on shoulder sense position joints in overhead athletes w...

Introduction: The purpose of this study was to compare the electromyography index of muscle coactivation of the following muscle pairs : posterior deltoid and pectoralis major (PD/ PM); triceps brachii and biceps brachii (TB/BB); and serratus anterior and upper trapezius (SA/ UT) during three different closed kinetic chain exercises (wall-press, bench-press and push-up) on an unstable surface a...

Background: The purpose of this study was to investigate the ratio of Electromyography (EM G) activities of the vastus medialis obliqus (VMO) and vastus lateralis (VL) within seven angles of knee joint range of motion using isometric contraction in open kinetic chain (OK C) and closed kinetic chain (CKC). Methods: The dominant knees of 44 healthy female subjects (mean age: 24.84 with range...

Closed-kinetic chain resistance training (CKCRT) of the lower body is superior to open-kinetic chain resistance training (OKCRT) to improve performance parameters (e.g., vertical jump), but the effects of upper-body CKCRT on throwing performance remain unknown. This study compared shoulder strength, power, and throwing velocity changes in athletes training the upper body exclusively with either...

[Purpose] The purpose of this study was to examine the reliability and validity of the Closed Kinetic Chain Upper Extremity Stability (CKCUES) test. [Subjects and Methods] A sample of 40 subjects (20 males, 20 females) with and without pain in the upper limbs was recruited. The subjects were tested twice, three days apart to assess the reliability of the CKCUES test. The CKCUES test was perform...