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The geometric curvature of the spine during the sirshasana, the yoga's headstand.
- Source :
- Journal of Sports Sciences; Jun2017, Vol. 35 Issue 12, p1134-1141, 8p, 1 Diagram, 2 Charts, 2 Graphs
- Publication Year :
- 2017
-
Abstract
- This study analysed the behaviour of the geometric curvature of the spine during sirshasana. The position of dorsal retroreflective markers was computed via stereophotogrammetric analysis in six males and five females (29.4 ± 8.8 years, 63.0 ± 11.4 kg, 1.66 ± 0.08 m [average ± standard deviation]). The spinal points were projected onto the sagittal and frontal planes of the trunk, a polynomial was fitted to the data and the two-dimensional geometric curvature was quantified. The inferior lumbar lordosis decreased compared to the orthostatic position and gait, which may favour the posterior protrusion of the lumbar spinal nucleus pulposus in people with posterior herniation. The lateral deviation at the middle of the thoracic spine increases during sirshasana, which may reflect increased difficulties for postural control and spinal loads. It could be useful for promoting positive spinal structural and functional chronic adaptations for healthy participants, if the yoga programme is carefully planned and the spinal alignment is carefully monitored during a headstand. However, it may aggravate some spinal diseases, especially scoliosis. [ABSTRACT FROM AUTHOR]
- Subjects :
- SPINE physiology
LUMBAR vertebrae physiology
THORACIC vertebrae
ANTHROPOMETRY
BIOMECHANICS
COMPARATIVE studies
EXERCISE physiology
MATHEMATICS
PROBABILITY theory
QUESTIONNAIRES
RESEARCH funding
T-test (Statistics)
WALKING
YOGA
MOTION capture (Human mechanics)
DATA analysis software
DESCRIPTIVE statistics
LORDOSIS
ONE-way analysis of variance
PHYSIOLOGY
Subjects
Details
- Language :
- English
- ISSN :
- 02640414
- Volume :
- 35
- Issue :
- 12
- Database :
- Complementary Index
- Journal :
- Journal of Sports Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 121696621
- Full Text :
- https://doi.org/10.1080/02640414.2016.1211310