Relationship Between Isometric Cervical Extension Strength Based on a Cervical Extension Machine and the Cross-Sectional Area of Neck Muscles

Tsuyama, Kaoru; Yamamoto, Yousuke; Fujimoto, Hideo; Nakazato, K; Fujishiro, Hitone; Nakajima, Hiroyuki

doi:10.7600/jspfsm1949.49.193

Cited by 4 publications

(4 citation statements)

References 8 publications

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“…A positive correlation was observed between the IC-ES and the CSA of neck extensor muscles in previous studies (Mayoux-Benhamou et al 1989;Tsuyama et al 2000b). The CSA of neck extensor muscles has been calculated using computed tomography, ultrasonography and MRI in previous studies (Mayoux-Benhamou et al 1989;Conley et al 1995Conley et al , 1997Rezasoltani et al 1996Rezasoltani et al , 1999Tsuyama et al 2000b).…”

Section: Discussionmentioning

confidence: 51%

“…In addition, B1 to B6 between C4 and C5 were divided into three areas (B1+B2, B3+B4, B5+B6) and the CSA of each area was analysed. We con®rmed that the CSA of the neck muscles between C4 and C5 mainly represented the area yielding neck muscle strength in our previous study (Tsuyama et al 2000b).…”

Section: Magnetic Resonance Imagingmentioning

confidence: 71%

“…The CSA of neck extensor muscles has been calculated using computed tomography, ultrasonography and MRI in previous studies (Mayoux-Benhamou et al 1989;Conley et al 1995Conley et al , 1997Rezasoltani et al 1996Rezasoltani et al , 1999Tsuyama et al 2000b). Rezasoltani et al (1999) showed that the CSA of the semispinalis capitis muscle in wrestlers was signi®cantly larger than that in weightlifters or sedentary persons.…”

Section: Discussionmentioning

confidence: 99%

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Comparison of the isometric cervical extension strength and a cross-sectional area of neck extensor muscles in college wrestlers and judo athletes

Tsuyama

Yamamoto

Fujimoto

et al. 2001

European Journal of Applied Physiology

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Increasing neck muscle strength can play an important role in preventing neck injuries in contact sports. The purpose of this study was to examine the actual conditions of the isometric cervical extension strength (ICES) and the cross-sectional area (CSA) of neck extensor muscles in male athletes participating in college wrestling and judo. The subjects comprised 18 wrestlers and 37 judo athletes from Nippon Sports Science University in Japan. The ICES was measured at eight angles (126 degrees, 108 degrees, 90 degrees, 72 degrees, 54 degrees, 36 degrees, 18 degrees, 0 degrees ). Transverse slices of 10 mm thickness were obtained at the position of each intervertebral disc between C2 and C3, C3 and C4, C4 and C5 and C5 and C6 using magnetic resonance imaging. The ICES of the wrestlers were significantly higher than those of the judo athletes. The ICES curve against the angle in wrestlers tended to differ from that of judo athletes. The CSA of neck extensor muscles in the wrestlers was significantly larger at all intervertebral levels examined than those of the judo athletes. A significant difference was observed in the CSA of the deepest area of neck extensor muscles between the groups although the difference was not significant in the superficial area. In this study, the ICES and the CSA in wrestlers were shown to be significantly higher and larger respectively than in the judo athletes, indicating a significant difference between these two sports.

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Section: Discussionmentioning

confidence: 51%

Section: Magnetic Resonance Imagingmentioning

confidence: 71%

Section: Discussionmentioning

confidence: 99%

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Comparison of the isometric cervical extension strength and a cross-sectional area of neck extensor muscles in college wrestlers and judo athletes

Tsuyama

Yamamoto

Fujimoto

et al. 2001

European Journal of Applied Physiology

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show abstract

“…31,32 For the muscles around the cervical spine also, it has been reported that there is a significant correlation between the cross-sectional area of the muscles (computed from CT or MRI images by using NIH image soft) and the strength of the muscles. 33 Judging from these reports, it is probable that a reduction in the cross-sectional area of the muscles around the cervical spine suggests muscular atrophy and deterioration of its muscle strength. However, the findings of the current study are not sufficient to prove that atrophy of the muscles around the cervical Figure 3.…”

Section: Discussionmentioning

confidence: 97%