Chinese Journal of Tissue Engineering Research ›› 2010, Vol. 14 ›› Issue (43): 8149-8153.doi: 10.3969/j.issn.1673-8225.2010.43.042

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Collection and comparison of the times of cracking sounds during four different ways of cervical rotatory manipulations

Wang Fu 1, 2, Chen Li-zhen3, Li Yi-kai1, He Yi-xian4, Lu Qi2, Zhou Bei-yun2, Luo Ping2, Li Tao2   

  1. 1 Teaching and Research Section of Orthopedics of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou  510515, Guangdong Province, China; 2 Teaching and Research Section of Physical Health Care, Guangdong Vocational Institute of Sport, Guangzhou  510663, Guangdong Province, China; 3 Second Outpatient Department of Xinsha Hospital, Guangzhou  511473, Guangdong Province, China; 4 Department of Rehabilitative Medicine, Longyan First Hospital, Longyan  364000, Fujian Province, China
  • Online:2010-10-22 Published:2010-10-22
  • Contact: Li Yi-kai, Professor, Chief physician, Doctoral supervisor, Teaching and Research Section of Orthopedics of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, Guangdong Province, China ortho@fimmu.com
  • About author:Wang Fu☆, Studying for doctorate, Teaching and Research Section of Orthopedics of Traditional Chinese Medicine, School of Traditional Chinese Medicine, Southern Medical University, Guangzhou 510515, Guangdong Province, China; Teaching and Research Section of Physical Health Care, Guangdong Vocational Institute of Sport, Guangzhou 510663, Guangdong Province, China wangfu77@126.com
  • Supported by:

    the National Natural Science Foundation of China, No. 30772841*

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Abstract:

BACKGROUND: There are many cervical rotatory manipulations, such as lift and rotation manipulation, Feng’s manipulation, Sun’s rotation manipulation and Long’s rotation manipulation. Those four manipulation can produce cracking sounds when rotating the cervical vertebra. Is there difference among the cracking sounds caused by the four different cervical rotatory manipulations?
OBJECTIVE: To observe and compare the difference of times of cracking sounds caused by four different kinds of cervical rotatory manipulations.
METHODS: A total of 96 healthy college students were randomly divided into four groups, which respectively underwent lift and rotation manipulation, local and rotation manipulation, Sun’s rotation manipulation and pure rotation manipulation. Each student was rotated to the left side first and then to the right side. A set of equipment designed for acoustic signal acquisition was applied to collect the cracking sounds, followed by statistical analysis of the data collected.
RESULTS AND CONCLUSION: When rotated to the left, the times of cracking sounds caused by local and rotation manipulation and Sun’s rotation were less than the other two manipulations, and the proportion of one time of sound was greater. When rotated to the right, the times of cracking sounds caused by the four different kinds of cervical rotatory manipulations were similar. When rotating the cervical vertebrae, the times of cracking sounds were reduced by exerting axial stretching force, and the proportion of one time of sound was greater. We can improve the accuracy and pertinency of bonesetting in this way.

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