Knee Kinetics and Kinematics during Ten-Sao Dance: A Comparison between Khon Masked Dancers and Non-dancers
Issued Date
2023-01-01
Resource Type
ISSN
08574421
eISSN
2586940X
Scopus ID
2-s2.0-85188674547
Journal Title
Journal of Health Research
Volume
37
Start Page
S123
End Page
S133
Rights Holder(s)
SCOPUS
Bibliographic Citation
Journal of Health Research Vol.37 (2023) , S123-S133
Suggested Citation
Jearudomsup P., Bovonsunthonchai S., Vachalathiti R., Piriyaprasarth P., Krityakiarana W. Knee Kinetics and Kinematics during Ten-Sao Dance: A Comparison between Khon Masked Dancers and Non-dancers. Journal of Health Research Vol.37 (2023) , S123-S133. S133. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/97827
Title
Knee Kinetics and Kinematics during Ten-Sao Dance: A Comparison between Khon Masked Dancers and Non-dancers
Author's Affiliation
Corresponding Author(s)
Other Contributor(s)
Abstract
Background: The Khon masked dance is an authentic Thai classical performance that has been relinquished for centuries. "Ten-Sao", the basic training movement is maintained in the semi-squat or knee flexion and varus with toes out throughout the performance. The excessive knee flexion and varus position could exhibit an impact force and stress on the knee structures and leads to knee injury risk. The evidence of Ten-Sao related to the knee kinetics (knee joint force and ground reaction force) and kinematic (knee joint angle) information remains far from obvious. Methods: This research presented a study of the comparisons of kinetics and kinematics over the starting and leg rising phases of Ten-Sao between Khon masked dancers and non-dancers. Twenty healthy males, including Khon masked dancers (n = 10) and non-dancers (n = 10) participated in the study. All participants performed Ten-Sao 10 cycles, then the kinetics and kinematics of starting and leg rising phases were investigated using 3D motion analysis and force plates. Results: For kinetics, the findings showed lower knee anterior (p = 0.009) and inferior (p = 0.001) joint forces in Khon masked dancers when compared to the non-dancers at the starting phase. Moreover, Khon masked dancers showed lower medial (p = 0.012) and vertical (p < 0.001) ground reaction forces at the starting phase. For kinematics, Khon masked dancers had lower knee varus angle (p = 0.038) at the starting phase but had higher knee internal rotation angle (p = 0.028) at leg rising phase. The reduced joint force and ground reaction force are achieved by decreasing knee varus and external rotation, both of which contribute to less stress on the knee structures and involve the dance technique. However, leg raising with a high knee internal rotation could be a cause of increased compression and tension on the knee joint. Conclusion: The results obtained from this study might provide the knee biomechanics evidence of Ten-Sao and be used in the prevention, development, and movement suggestion for Khon masked dancers.