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Abstract
The influence of induced oral breathing on head and craniocervical posture was studied in ten healthy young adults. After a baseline recording, oral respiration was induced by using a swimmer’s type nose clip. The subjects were filmed 15 and 90 minutes after wearing the nose clip, immediately and 15 minutes after taking it off. The angles C7-tragion versus the true vertical, nasion-tragion versus the vertical, and C7-tragion-nasion were calculated, and the difference between the baseline and the four experimental recordings was computed. During the experiment, head and neck positions were modified in all subjects, but with a large variability for both the direction (flexion or extension) and the extent of the modification. Overall, the mean differences were minimal with large standard deviations. Differences between baseline and the experimental recordings were significant only for the C7-tragion versus the vertical angle (analysis of variance, p=0.0083). In conclusion, induced oral respiration may have a significant role in the alteration of head and craniocervical posture, but the effect was highly variable.
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Notes on contributors
Chiarella Sforza
Dr. Chiarella Sforza received her M.D. degree from the University of Milan School of Medicine, Italy in 1986, and a Ph.D. degree in sports medicine in 1989 from the same university. She is a Professor of human anatomy at the School of Sport Sciences of Milan University and Director of the Laboratory of Functional Anatomy of the Locomotor Apparatus, Department of Human Anatomy, University of Milan, Italy. Dr. Sforza has been involved in research into the functional anatomy of the locomotor apparatus and the relationship between the stomatognathic apparatus and other body areas.
Anna Colombo
Dr. Anna Colombo received her D.D.S. degree from the University of Milan School of Dentistry, Italy in 1995, and her Ph.D. in morphological sciences from the same university in 1999. She is currently a staff member of the Laboratory of Functional Anatomy of the Stomatognathic Apparatus.
Michela Turci
Dr. Michela Turci received her B.Sc. degree in physical education from the Lombardia Superior Institute of Physical Education in Milan, Italy in 1979. She received her Ph.D. degree in physical education from the UFR STAPS of Dijon, France in 1994. She has been working at the Laboratory of Functional Anatomy of the Locomotor Apparatus since 1997. She is currently attending a postgraduate course in morphological sciences at the University of Milan.
GianPiero Grassi
Dr. GianPiero Grassi received his B.Sc. degree in physical education from the Lombardia Superior Institute of Physical Education in Milan, Italy in 1969. He received his Ph.D. degree in physical education from the UFR STAPS of Dijon, France in 1993. He is a contract Professor of theory and methodology of human movement at the School of Sport Sciences of Milan University. He has been a staff member of the Laboratory of Functional Anatomy of the Locomotor Apparatus since its beginning in 1992.
Virgilio F. Ferrario
Dr. Virgilio F. Ferrario received his Ph.D. degree in bioengineering from the Polictecnico of Milan, Italy in 1969. He received his M.D. degree from the University of Milan School of Medicine, Italy in 1980. He is a Professor of human anatomy at the Dental School of Milan University, and Director of the Laboratory of Functional Anatomy of the Stomatognathic Apparatus, Department of Human Anatomy, Faculty of Medicine, University of Milan, Italy. Dr. Ferrario has been involved in research on the anatomical bases of stomatognathic function and malfunction.