Electromyography assessments of the vastus medialis muscle during soccer instep kicking between dynamic and static stretching

• Main Authors: Amiri-Khorasani, M., Abu Osman, Noor Azuan, Yusof, A.
• Format: Article
• Language: English
• Published: 2010
• Subjects: TA Engineering (General). Civil engineering (General)
• Online Access: http://eprints.um.edu.my/4422/1/Electromyography_Assessments_of_the_Vastus_Medialis_Muscle_during_Soccer_Instep_Kicking_between_Dynamic_and_Static_Stretching.pdf; http://eprints.um.edu.my/4422/; http://scholar.google.com.my/scholar?cluster=11454855516834291544&hl=en&as_sdt=0,5

The purpose of this study was to examine the effects of static and dynamic stretching within a pre-exercise warm-up on vastus medialis muscle activity during instep kicking and ball velocity in soccer players. The kicking motions of dominant legs were captured from using six synchronized high-speed infra-red cameras at 200 Hz and Electromyography at 100 Hz. There was significant difference in vastus medialis activity after dynamic stretching relative to no stretching condition (0.12 +/- 0.06 mV) versus static stretching relative to no stretching condition (-0.21 +/- 0.10 mV) with p < 0.001). In addition, there was also a significant difference in ball velocity after dynamic stretching relative to no stretching condition (4.53 +/- 2.10 m/s) versus static stretching relative to no stretching condition (-1.48 +/- 2.43 m/s) with p < 0.003. We concluded that dynamic stretching during the warm-up, as compared to static stretching, is probably more effective as preparation for optimal muscle activity and finally have high ball velocity which is required in soccer.