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Inter-gender differences in the formation of anteroposterior spinal curvatures in people practicing ballroom dancing

Puszczałowska-Lizis Ewa, Mól Marzena, Omorczyk Jarosław

Acta of Bioengineering and Biomechanics

2020

Vol. 22, no. 4

123--131

The study aimed to assess the formation of the spinal anteroposterior curvatures in people practicing ballroom dancing. Methods: The study group comprised 98 people practicing ballroom dancing (58 W, 40 M; aged 35–45 years). Digital inclinometer “Baseline” was used as primary research tool. The data were analyzed based on Student’s t-test, Mann–Whitney U-test and Pearson Chi-square test. Results: Statistically significant inter-gender differences were in the values of angles determining inclination of lumbosacral section of the spine ( p < 0.001), the lumbar lordosis curvature ( p < 0.001) as well as the compensation ratio ( p = 0.002). Statistically significant dependences between the types body posture and gender ( p = 0.005) were noted. Conclusions: Women practicing ballroom dancing are distinguished with increased inclination of lumbosacral section of the spine and deeper lumbar lordosis, while men are characterized with shallowed lumbar lordosis. Women are more likely to have lordotic body posture while men are characterized by balanced body posture. The prevalence of body posture subtypes is not dependent on gender.

Biomechanics of the human spine

Jaworski Ł., Karpiński R.

Journal of Technology and Exploitation in Mechanical Engineering

2017

Vol. 3, nr 1

8--12

The paper presents biomechanics of the human spine. The vertebrae of the spine are described, including basic differentiation between vertebrae depending on theirs placement in the spine. The intervertebral discs are depicted. Curvatures of the spine are presented, followed by the basic biomechanics, including a movability of the spine and an influence of body posture on the spine.

Artykuł przedstawia zarys biomechaniki kręgosłupa człowieka. Opisano kręgi, uwzględniając różnice w budowie między kręgami na różnych odcinkach kręgosłupa oraz krążki międzykręgowe. Przybliżono strukturę krzywizn oraz podstawy biomechaniki kręgosłupa, uwzględniając jego zakresy ruchów i wpływ postawy ciała na kręgosłup.