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Wilcox SJ, Hager R, Lockhart B, et al. Ground Reaction Forces Generated by Twenty-eight Hatha Yoga Postures. Int J Exerc Sci. 2012;5(2):114-126
Wilcox, S. J., Hager, R., Lockhart, B., & Seeley, M. K. (2012). Ground Reaction Forces Generated by Twenty-eight Hatha Yoga Postures. International journal of exercise science, 5(2), 114-126.
Wilcox, Sylvia J, et al. "Ground Reaction Forces Generated by Twenty-eight Hatha Yoga Postures." International journal of exercise science vol. 5,2 (2012): 114-126.
Wilcox SJ, Hager R, Lockhart B, Seeley MK. Ground Reaction Forces Generated by Twenty-eight Hatha Yoga Postures. Int J Exerc Sci. 2012 Apr 15;5(2):114-126. eCollection 2012. PMID: 27182380; PMCID: PMC4738971.
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Int J Exerc Sci. 2012 Apr 15;5(2):114-126. eCollection 2012.

Ground Reaction Forces Generated by Twenty-eight Hatha Yoga Postures.

International journal of exercise science

Sylvia J Wilcox, Ron Hager, Barbara Lockhart, Matthew K Seeley

Affiliations

  1. Exercise Sciences, College of Life Sciences, Brigham Young University, Provo, UT, USA.

PMID: 27182380 PMCID: PMC4738971

Abstract

Adherents claim many benefits from the practice of yoga, including promotion of bone health and prevention of osteoporosis. However, no known studies have investigated whether yoga enhances bone mineral density. Furthermore, none have estimated reaction forces applied by yoga practitioners. The purpose of this study was to collect ground reaction force (GRF) data on a variety of hatha yoga postures that would commonly be practiced in fitness centers or private studios. Twelve female and eight male volunteers performed a sequence of 28 hatha yoga postures while GRF data were collected with an AMTI strain-gauge force platform. The sequence was repeated six times by each study subject. Four dependent variables were studied: peak vertical GRF, mean vertical GRF, peak resultant GRF, and mean resultant GRF. Univariate analysis was used to identify mean values and standard deviations for the dependent variables. Peak vertical and resultant values of each posture were similar for all subjects, and standard deviations were small. Similarly, mean vertical and resultant values were similar for all subjects. This 28 posture yoga sequence produced low impact GRF applied to upper and lower extremities. Further research is warranted to determine whether these forces are sufficient to promote osteogenesis or maintain current bone health in yoga practitioners.

Keywords: Mind-body; flexibility; strength; weight-bearing

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