Sciatic Nerve Conductivity is Impaired by Hamstring Strain Injuries

Karina Kouzaki; Koichi Nakazato; Masuhiko Mizuno; Tooru Yonechi; Yusuke Higo; Yoshiaki Kubo; Tokuyoshi Kono; Kenji Hiranuma

doi:10.1055/s-0043-115735

International Journal of Sports Medicine, Table of Contents

Int J Sports Med 2017; 38(11): 803-808
DOI: 10.1055/s-0043-115735

Physiology & Biochemistry

Sciatic Nerve Conductivity is Impaired by Hamstring Strain Injuries

Authors

Karina Kouzaki

¹Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
Koichi Nakazato

¹Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
Masuhiko Mizuno

¹Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
Tooru Yonechi

¹Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
Yusuke Higo

²Department of Physical Education, Faculty of Sport Science, Nippon Sport Science University, Tokyo, Japan
Yoshiaki Kubo

³Department of Judotheraphy, Tokyo Ariake University, Tokyo, Japan
Tokuyoshi Kono

¹Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan
Kenji Hiranuma

¹Graduate School of Health and Sport Science, Nippon Sport Science University, Tokyo, Japan

Abstract

The aim of this study was to assess sciatic nerve conductivity in athletes with a history of hamstring strain injuries. Twenty-seven athletes with a history of hamstring strain injuries were included in the injured group. The control group consisted of 16 uninjured participants. We measured the proximal and distal latencies and calculated the sciatic nerve conduction velocity to evaluate neuronal conductivity. The results were expressed as median values and interquartile ranges. Both proximal latency and distal latency of the injured limb in the injured group were significantly longer than those of the uninjured limb (p<0.05). The nerve conduction velocity of the injured limb in the injured group was significantly lower than that of the uninjured limb (p<0.05). There were no significant side-to-side differences in the control group. Sciatic nerve conductivity impairments may exist in athletes with a history of hamstring strain injuries.

Key word

nerve conduction impairment - muscle damage - latency - eccentric contraction - re-injury - sports injury

Full Text

References

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