Progressive Upper Compartment Functional Strength Training on Postural Muscle Force: In Volleyball Players

Objectives: Postural muscle force leads to a increase in functional movement and associated ability of strength. The author examined changes in shoulder and humerus strength, maximum isometric joint angular degree force after functional upper strength training in volleyball players. They evaluated isometric joint angular force degree as predictors of functional strength. Materials and methods: Twenty four participant (average to 19.03 ± 1.54 age) were randomized to a 4-wk upper compartment functional strength program or control group. Results: Functional strength group increased significantly (p < 0.05) for all angular strength. Compared with controls, to functional strength led to greater at 45° angular strength (p = 0.011) dominant hand, non-dominant hand angular strength (p = 0.001), greater 90° angular strength (p = 0.014) dominant hand, non-dominant hand angular strength (p = 0.001). Shoulder and humerus muscle-tendon isometric strength were good predictors of functional strength. Conclusion: The authors concluded functional strength training in strength development is a important factor for shoulder-humerus postural force and a key target for upper compartment functional interventions.