Postural Stability In Healthy Adults Research Articles

Effect of voluntary muscle contraction on postural stability in healthy adults

ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Kędziorek J, Błażkiewicz M. Effect of voluntary muscle contraction on postural stability in healthy adults. Advances in Rehabilitation / Postępy Rehabilitacji. 2021. doi:10.5114/areh.2021.108380. APA Kędziorek, J., & Błażkiewicz, M. (2021). Effect of voluntary muscle contraction on postural stability in healthy adults. Advances in Rehabilitation / Postępy Rehabilitacji. https://doi.org/10.5114/areh.2021.108380 Chicago Kędziorek, Justyna, and Michalina Błażkiewicz. 2021. "Effect of voluntary muscle contraction on postural stability in healthy adults". Advances in Rehabilitation / Postępy Rehabilitacji. doi:10.5114/areh.2021.108380. Harvard Kędziorek, J., and Błażkiewicz, M. (2021). Effect of voluntary muscle contraction on postural stability in healthy adults. Advances in Rehabilitation / Postępy Rehabilitacji. https://doi.org/10.5114/areh.2021.108380 MLA Kędziorek, Justyna et al. "Effect of voluntary muscle contraction on postural stability in healthy adults." Advances in Rehabilitation / Postępy Rehabilitacji, 2021. doi:10.5114/areh.2021.108380. Vancouver Kędziorek J, Błażkiewicz M. Effect of voluntary muscle contraction on postural stability in healthy adults. Advances in Rehabilitation / Postępy Rehabilitacji. 2021. doi:10.5114/areh.2021.108380.

Effects of head motion on postural stability in healthy young adults with chronic motion sensitivity

BackgroundMotion sensitivity, or motion sickness, is common in modern vehicular and visually stimulating environments. Several studies have shown a relationship between motion sensitivity and decreased postural stability. We aimed to evaluate the effects of head motion (horizontal and vertical) on postural stability in healthy adults with and without chronic motion sensitivity (CMS).MethodsSixty healthy adult men and women (age, 20–40 years) with CMS (CMS group, n = 30) and without CMS (non-CMS group, n = 30) participated in the study. Postural stability was assessed during three conditions (static, horizontal head motion, and vertical head motion) using computerized dynamic posturography. Group and condition-related differences in equilibrium scores were evaluated.ResultsThere was no significant group x condition interaction (F2,114 = 0.9, partial ƞ2 = 0.04, p = 0.35). However, significant condition-related differences in equilibrium scores were observed (F2,114 = 26.4, partial ƞ2 = 0.31, p < 0.001). Equilibrium scores were significantly worse in the horizontal and vertical head motion conditions compared to those in the static condition (p < 0.001), but were comparable in vertical and horizontal head motion conditions (p = 0.27).ConclusionsPostural stability was lower in the horizontal and vertical conditions compared to the static condition. However, horizontal and vertical head motions had comparable effects on postural stability in both CMS and non-CMS groups, contrary to our expectations.

Analysis of the correlation between the differences in muscle strengths between the bilateral lower extremities and postural stability in healthy adults.

[Purpose] The purpose of this study was to examine the correlation between the differences in muscle strengths between the bilateral lower extremities and the level of postural sway that indicates postural stability. [Subjects and Methods] A total of 49 students (18 males and 31 females) at Y University in Gyeongsangnam-do, South Korea, participated in this study. Partial correlation analysis was performed to determine the effects of sway length and velocity on the differences in muscle strengths between the lower extremities. [Results] Both sway length and sway velocity showed a negative correlation with the difference in bilateral ankle dorsiflexion strength. Both sway length and sway velocity showed a positive correlation with the difference in bilateral hip flexion strength. [Conclusion] Difference in left-right muscle strengths of hip flexion and ankle dorsiflexion can affect postural stability when the levels of lower extremity muscle strengths are excluded.

The relationship between cervical range of motion, head-repositioning accuracy, and postural stability in healthy adults

Aims: To investigate the inter-relationship between cervical range of motion (CROM), head-repositioning accuracy (HRA), postural stability and their correlation with age and gender in healthy adults. Methods: A correlational study using cross-sectional design with convenient sampling was conducted. Thirty subjects with no previous history of neck pain or injury to the cervical spine in the previous 6 months were recruited. Subjects' CROM was measured by a cervical range of motion device. HRA was measured by equipment including laser pointer, helmet, goggles and marking pens. Postural stability was assessed by Biodex Balance System. Findings: CROM was shown to be negatively correlated to HRA and postural stability (P&lt;0.05) although the reliability coefficient was poor (r ranged from −0.0017 to 0.64). HRA was positively correlated to postural stability (P&lt;0.05), yet the reliability coefficient was poor (r ranged from 0.12 to 0.41). Results also demonstrated positive correlation between age and all the variables measured (P&lt;0.05). Gender did not show any effect on the outcome measures. Conclusion: HRA showed positive correlation with postural stability while CROM showed negative correlation to HRA and postural stability. All measured variables decrease with the increase of age while gender did not show any correlation with the outcome measures.