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Reactive postural adjustment in response to predictable and unpredictable perturbations in healthy adults: A comparison between swayback, hyperlordotic and erect postures by Sharon M.H. Tsang; Evest H.W. Chan; Jason Y.H. Chan; Gladys P.Y. Huang; Kelly K.T. Lam; Eunice W.Y. Lam; Allan C.L. Fu; Eliza R. Sun is a Medicine article available to read on EtoBox.
What is Reactive postural adjustment in response to predictable and unpredictable perturbations in healthy adults: A comparison between swayback, hyperlordotic and erect postures about?
Background: Promoting an erect posture in standing has been advocated to offer superior protection to the spine when compared to hyperlordotic and swayback postures. Research question: Do postural adjustments towards external perturbation differ between erect, hyperlordotic and swayback postures? If so, which posture offers better protection to lumbar spine? Methods: Forty-four healthy adults received top-down perturbations under unpredictable (without visual-andauditory input) and predictable (with visual-and-auditory input) conditions in three simulated postures: erect, hyperlordotic, and swayback. Postural adjustments namely the centre of pressure parameters, joint angle onsets, and neuromuscular responses measured by muscle onsets and co-contraction between muscle pairs upon the perturbation were compared using the two-way repeated measures ANOVA. Post-hoc analysis with Bonferroni correction was conducted to identify the between-posture differences for the respective postural adjustment parameters. Results: Path length, ellipse area and average velocity of centre of pressure were significantly greater under unpredictable condition as compared to predictable condition (p < 0.001
Who reads Reactive postural adjustment in response to predictable and unpredictable perturbations in healthy adults: A comparison between swayback, hyperlordotic and erect postures?
It is typically read by researchers, students, and practitioners in Medicine.
- Author
- Sharon M.H. Tsang; Evest H.W. Chan; Jason Y.H. Chan; Gladys P.Y. Huang; Kelly K.T. Lam; Eunice W.Y. Lam; Allan C.L. Fu; Eliza R. Sun
- Publisher
- Elsevier BV
- Published
- 2024
- Language
- EN
- Field
- Medicine (Health Sciences)