Introduction: One of the main features of multiple sclerosis (MS) is the deterioration of motor pathway axons, and in some cases, sensory system axons. Consequently, experimental sensori-motor testing with the undisturbed upright stance paradigm might be useful. It can be hypothesized that the postural strategies could be differently affected depending on the degree of dysfunction of both sensory and motor tracts.
Methods: Twelve and fifteen patients, classified from sensory clinical tests as ataxo-spastic (SEP-AS) or only spastic (SEP-S), respectively were included in this study and compared to 12 healthy adults matched for age. The postural strategies were assessed from the centre of pressure trajectories (CP), measured from the force platform on which the subjects were instructed to stand upright eyes open for a trial lasting 51.2 s. biomechanical modelling was applied to these trajectories to compute the movements of the centre of gravity (CG) and consequently, the vertical difference between the CP and then the CP-CG, two elementary movements known to characterize postural performance movements for CGv and horizontal acceleration communicated to the CG for the CP-CG movements, and consequently overall neuro-muscular activity. To estimate the relative contribution of each of these elementary movements, an analysis based on frequency parameters (RMS and MF) was conducted.
Results: Both SEP-AS and SEP-S groups demonstrate larger CG and CP-CG movements than the age paired individuals. However, some statistically significant differences has to be emphasised between the two MS subgroups but only for the CP-CG component: the RMS of these movements are largely increased for the SEP-AS group, as compared to the SEP-S one. Biomechanically, this feature expresses the necessity for these very patients to produce exaggerated horizontal forces, and thus an increased energy expenditure, to handle the CG movements. The lack of effect observed for the CG movements underlines the capacity for the SEP-AS group to set appropriate control mechanisms for counteracting these less favourable initial conditions.
Conclusion: By demonstrating specific trends in the postural organisation aimed at controlling undisturbed upright stance maintenance, this study can be of interest for the practitioner by legitimating this experimental paradigm as a simple and non invasive way to diagnose appropriately the sensori-motor deficiency.
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http://dx.doi.org/10.1016/s0035-3787(07)74178-4 | DOI Listing |
Minerva Anestesiol
December 2024
Department of Anesthesiology, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile.
Background: Frail elderly patients have a higher risk of postoperative morbidity and mortality. Prehabilitation is a potential intervention for optimizing postoperative outcomes in frail patients. We studied the impact of a prehabilitation program on length of stay (LOS) in frail elderly patients undergoing elective surgery.
View Article and Find Full Text PDFPhys Eng Sci Med
January 2025
Institute of Digital Technologies for Personalized Healthcare (MeDiTech), University of Applied Sciences and Arts of Southern Switzerland, Via Pobiette, Manno, 6928, Manno, Switzerland.
The analysis of repetitive hand movements and behavioral transition patterns holds particular significance in detecting atypical behaviors in early child development. Early recognition of these behaviors holds immense promise for timely interventions, which can profoundly impact a child's well-being and future prospects. However, the scarcity of specialized medical professionals and limited facilities has made detecting these behaviors and unique patterns challenging using traditional manual methods.
View Article and Find Full Text PDFLaw Hum Behav
January 2025
Department of Psychiatry and Behavioral Sciences, University of New Mexico Health Sciences Center.
Objective: We conducted a survey to catalog the state of open science in the field of psychology and law. We addressed four major questions: (a) How do psycholegal researchers define open science? (b) How do psycholegal researchers perceive open science? (c) How often do psycholegal researchers use various open science practices? and (d) What barriers, if any, do psycholegal researchers face or expect to face when implementing open science practices?
Hypotheses: We did not make specific hypotheses given the exploratory and descriptive nature of the study.
Method: We surveyed 740 psychology and law researchers (45% faculty, 64% doctoral degree, 66% women, and 85% White/non-Hispanic) about their perceptions of and experiences with open science using a mixed-methods design.
J Wound Ostomy Continence Nurs
January 2025
Tianxiang Jiang, BS, RN, Intensive care unit, Taizhou Hospital of Zhejiang Province affiliated to Wenzhou Medical University, Linhai, Zhejiang Province, China, School of Nursing, Dalian University, Dalian City, Liaoning Province, China.
Purpose: A meta-analysis was conducted to comprehensively identify risk factors of incontinence-associated dermatitis (IAD) in adults and provide evidence-based support for healthcare professionals to formulate IAD preventive interventions and bundled interventions.
Methods: Systematic review and meta-analysis of pooled findings.
Search Strategy: Two researchers independently searched databases PubMed, EBSCO, Cochrane Library, Embase, Medline, Web of Science and Scopus and 4 Chinese databases (CNKI, Wanfang Data, VIP and CBM) for relevant studies published from their inception to March 15, 2023.
J Physiol
January 2025
Ferrara University, Ferrara, Italy.
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