Several exercise training methodologies have been studied for their effects on performance in overhead sports such as baseball and tennis. Multiple studies have demonstrated that lower body closed kinetic chain (CKC) exercises produce greater improvements in performance compared to open kinetic chain (OKC) training. However, evidence comparing the effects of upper body OKC and CKC training on performance is limited. The purpose of this study was to compare the effects of an upper body CKC resistance training program to an OKC resistance training program on maximal serve velocity (MSV), average serve velocity (ASV), seated 1-arm medicine all shot put distance (MBT), 3 repetition maximum (RM) bench press strength (BP), push-up repetitions (PU), and modified pull-up repetitions (MPU) in competitive junior tennis players. Sixteen subjects performed a total body resistance training program 3 times per week for 8 weeks.
