This study analyzed the effect of head position and visual condition on the control of balance in handstand, a gymnastics posture that necessitates adaptation of sensory information processing. Five expert gymnasts participated. Centre of pressure trajectories and kinematics of different body segments were recorded. The gymnasts were instructed to maintain three handstands as long as possible in four head positions, with and without vision. Performances and postural stability was much better in the standard and dorsiflexion positions than in the aligned and ventroflexion positions under the two conditions of vision. Performances were lower without vision in the standard and dorsiflexion position. If vision clearly plays an important role, yet the tonic neck reflexes also seem to contribute greatly to control body sways during inverted posture.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.neulet.2004.10.085 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Control values of intraocular pressure in different species: a review of literature.
Croat Med J
December 2024
Marijan Klarica, Department of Pharmacology and Croatian Institute for Brain Research, University of Zagreb School of Medicine, Šalata 3b, 10000 Zagreb, Croatia,
It is generally accepted that intraocular pressure (IOP) depends on the rate of aqueous humor production, system outflow resistance, and episcleral venous pressure. Therefore, control IOP values are expected to be within the strict and predictable limits in specific animal species, and there should be no vast differences between species. However, in the literature the control IOP values significantly vary (from potentially "hypotensive" to "hypertensive") within the same species, and especially between species depending on the measurement technique, head position in relation to the rest of the body, circadian rhythm, age, and topical and systemic drugs (anesthetics) applied.
View Article and Find Full Text PDFInternational Society of Sports Nutrition Position Stand: Long-Chain Omega-3 Polyunsaturated Fatty Acids.
J Int Soc Sports Nutr
December 2025
Department of Health and Human Performance, Nova Southeastern University, Davie, FL, USA.
Position Statement: The International Society of Sports Nutrition (ISSN) presents this position based on a critical examination of the literature surrounding the effects of long-chain omega-3 polyunsaturated fatty acid (ω-3 PUFA) supplementation on exercise performance, recovery, and brain health. This position stand is intended to provide a scientific foundation for athletes, dietitians, trainers, and other practitioners regarding the effects of supplemental ω-3 PUFA in healthy and athletic populations. The following conclusions represent the official position of the ISSN: Athletes may be at a higher risk for ω-3 PUFA insufficiency.
View Article and Find Full Text PDFFactors Associated With Balance and Fear of Falling in Patients With Benign Paroxysmal Positional Vertigo: A Controlled Cross-Sectional Study.
Clin Otolaryngol
January 2025
Department of Otorhinolaryngology, Kirikkale University Faculty of Medicine, Kirikkale, Turkey.
Objectives: The aim of this study is to evaluate the factors influencing balance and fear of falling (FOF) in patients with benign paroxysmal positional vertigo (BPPV).
Design: A controlled cross-sectional study.
Setting: Single center study.
Association between acetabular coverage over femoral head and rate of joint space narrowing in non-arthritic hips.
Bone Jt Open
January 2025
Department of Orthopaedic Surgery, Kyoto University Graduate School of Medicine, Kyoto, Japan.
Aims: This study was performed to investigate the association between the acetabular morphology and the joint space narrowing rate (JSNR) in the non-arthritic hip.
Methods: We retrospectively reviewed standing whole-leg radiographs of patients who underwent knee arthroplasty from February 2012 to March 2020 at our institute. Patients with a history of hip surgery, Kellgren-Lawrence grade ≥ II hip osteoarthritis, or rheumatoid arthritis were excluded.
Modelling and Validation of a 6 MV Compact Linear Accelerator via Monte Carlo Simulation using Geant4 Application for Tomographic Emission (GATE).
Biomed Phys Eng Express
January 2025
Mindanao Radiation Physics Center, MSU-Iligan Institute of Technology, Andres Bonifacio Street Tibanga, Iligan City, Lanao Norte, 9200, PHILIPPINES.
To accurately model and validate the 6 MV Elekta Compactlinear accelerator using the Geant4 Application for Tomographic Emission (GATE). In particular, this study focuses on the precise calibration and validation of critical parameters, including jaw collimator positioning, electron source nominal energy, flattening filter geometry, and electron source spot size, which are often not provided in technical documentation. Methods: Simulation of the Elekta Compact6 MV linear accelerator was performed using the Geant4 Application for Tomographic Emission (GATE) v.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!