1. Relation between Radiological Findings of the Cervical Spine and Neck Muscle Strength in American Football Players and Rugby Football Players.
- Author
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Tsukimura, Y., Abe, H., Takada, N., Takeshima, S., Okazaki, N., Iwamoto, J., Sako, K., Jin, M., Watanabe, Y., and Wakano, K.
- Subjects
RADIOLOGY ,CERVICAL vertebrae ,MUSCLE strength ,NECK muscles ,RUGBY football players ,FOOTBALL players ,SPORTS injuries - Abstract
The purpose of this study is to investigate the relation between the radiological findings of the cervical spine and the muscle strength of the neck. Radiographs of the cervical spine were taken and studied in 345 1st grade American football players, consisting of 324 collegiate players, 21 high school players, and 87 high school rugby football players. All subjects were classified into 3 groups depending upon the radiological findings ; normal with anterior bowing (N) , and two groups of abnormal alignment, characterized by the disappearance of anterior bowing (DAB) or formation of posterior bowing (PB) , based on the findings in plain radiographs of the lateral view of the cervical spine in the neutral position. Flexion (F) and Extension (E) of neck muscle strength were measured using Micro FET. F/neck diameter (F/ND), E/ND. F/body weight (F/BW) . E/BW and the percentage of F/E (%F/E) were analyzed statistically. E, E/ND and %F/E were significantly related to the radiological findings of the cervical spine. E was 284.1 N in DAB. 266.2 N in PB and 277.2 N in N. The E/ND data was 7.5 N/cm. 7.1 N/cm and 7.3 N/cm in N. The %F/E was 90.6% in DAB, 95.4% in PB and 88.9% in N, respectively. We conclude from this study that the relative decrease in the neck extension muscle strength was low, compared with that of flexion in the PB gr. [ABSTRACT FROM AUTHOR]
- Published
- 2002