Effect of Progressive Isolated Core Stability Training

Forty-two adolescent female volleyball athletes (16.0±1.4 years) were randomly divided into two groups. Group 1 was the training group and, in addition to the routine volleyball training programmes, underwent an 8-week (3 days/week) progressive core stability training programme. Group 2 was the control group and only did routine volleyball training, with no core stability training. Main outcome measures: Shoulder IR and ER strength, medicine ball throw (MBT), modified push up (MPU) and closed kinetic chain (CKC) upper extremity stability tests were used to evaluate physical performance.