Relationship Between Ball Kick Velocity and Leg Strength: A Comparison Between Soccer Players and other Athletes

Takanori Noguchi, Shin-ichi Demura, Yoshinori Nagasawa

Fukui University of Technology, Fukui, Japan.
Graduate School of Natural Science & Technology, Kanazawa University, Kanazawa, Japan.
Kyoto Pharmaceutical University, Kyoto, Japan.

DOI: 10.4236/ape.2012.23017                

Abstract

This study compared soccer players with non-soccer players, with respect to the relationship between ball velocity due to an instep kick and various leg strengths. Ten young university soccer players and ten other athletes (non-soccer players) had their instep kick ball velocity (BV) measured with respect to isokinetic leg strength. The BVs from the soccer players were significantly greater than those from the non-soccer group. However, this group also had significantly inferior dorsiflexion strength of the ankle joint (low: low angular velocity), extension of the knee joint (low, middle, and the total value of the evaluation parameters of all angular velocities), and flexion of the hip joint (middle). Positive and significant correlations between BV and flexion and dorsiflexion strengths of the ankle joint (low), extension (low, middle, high, and total), and flexion of knee joint (low and total), extension (low, high, and total), and flexion (high) of the hip joint were found in the soccer group, but a significant negative correlation was found only between BV and hip joint flexion strength (middle) in the non-soccer group. In conclusion, soccer players have similar or inferior isokinetic leg strength in comparison to other athletes, but their BV is faster.

Keywords

Soccer; Ball Kick Velocity; Leg Strength

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Chan, P. A., Chan, Y. Y., Fong, T. D., Wong, Y. P., Lam, Y. H., Lo, K. C., et al. (2011). Clinical and biomechanical outcome of minimal invasive and open repair of the Achilles tendon. Sports Medicine Arthroscopy Rehabilitation Therapy and Technology, 3, 32. doi:10.1186/1758-2555-3-32
[2]	Demura, S. (2011) Health and a sports science lecture (2nd ed.). Tokyo, Japan. Kyorinsyoin Press.
[3]	Gür, H., Akova, B., Pündük, Z., & Kü?üko?lu, S. (1999). Effects of age on the reciprocal peak torque ratios during knee muscle contractions in elite soccer players. Scandinavian Journal of Medicine and Science in Sports, 9, 81-87.
[4]	Hoshikawa, Y., Iida, A., Muramatsu, M., & Nakajima, Y. (2007) Age-related changes in knee extension and flexion torques and thigh muscle volume in soccer players. Japan Journal of Physical Education, Health and Sport Sciences, 52, 431-442.
[5]	Kannus, P. (1994). Isokinetic evaluation of muscular performance: Implications for muscle testing and rehabilitation. International Journal of Sports Medicine, 15, 11-18. doi:10.1055/s-2007-1021104
[6]	Kellis, E., & Katis, A. (2007). Biomecanical Characteristics and determinants of instep soccer kick. Journal of Sports Science and Medicine, 6, 154-165.
[7]	Killis, E., & Katis, A. (2007). The relationship between isokinetic knee extension and flexion strength with soccer kick kinematics: An electromyographic evaluation. The Journal of Sports Medicine and Physical Fitness, 47, 385-394.
[8]	Levanon, J., & Depaena, J. (1998). Comparison of the kinematics of the full-instep and pass kicks in soccer. Medicine and Science in Sports and Exercise, 30, 917-927. doi:10.1097/00005768-199806000-00022
[9]	Poulmedis, P. (1985). Isokinetic maximal torque power of Greek elite soccer players. Journal of Orthopaedic and Sports Physical Therapy, 6, 293-295.
[10]	Rhodes, E. C., Mosher, R. E., McKenzie, D. C., Franks, I. M., Potts, J. E., & Wenger, H. A. (1986). Physiological profiles of the Canadian Olympic soccer team. Canadian Journal of Applied Sport Sciences, 11, 31-36.
[11]	Rochcongar, P., Morvan, R., Jan, J., Dassonville, J., & Beillot, J. (1988). Isokinetic investigation of knee extensors and knee flexors in young French soccer players. International Journal of Sports Medicine, 9, 448-450. doi:10.1055/s-2007-1025049
[12]	Sports Medicine Committee of Japan Football Association (2005). Soccer medicine for players and coaches. Tokyo: Kanahara & Co., Ltd.
[13]	Tsuyama, K., Kobayashi, T., Saito, N., Kiyota, H., & Nakajima H. (2007). Peculiarity of muscle strength in the lower limbs of soccer players from the perspective of isokinetic muscle strength and MRI findings in comparison with those of archers. Journal of Physical Fitness and Sports Medicine, 56, 223-232.