Effect of static and dynamic stretching exercises on hamstring and quadriceps muscle strength

This study aimed to examine the effects of an eight-week static and dynamic stretching protocol on the isokinetic strength parameters of hamstring and quadriceps muscle groups at different angular velocities (30°/s and 240°/s). The results indicated that dynamic stretching provided advantages in explosive power generation, especially at high-speed movements, while static stretching had a significant effect on improving flexibility. However, neither protocol resulted in a meaningful improvement in overall muscle strength. In measurements conducted at low angular velocity (30°/s), both protocols yielded similar muscle strength outcomes, whereas dynamic stretching showed superior effects on the quadriceps muscle group at 240°/s. ROM (range of motion) values indicated that both protocols had similar impacts on flexibility, with no significant differences observed. In conclusion, dynamic stretching is recommended for sports requiring explosive power, while static stretching should be incorporated into flexibility-focused programs. Future research should be conducted with larger sample groups, varying angular velocities, and different sets and durations.