Evaluation of balance recovery stability from unpredictable perturbations through the compensatory arm and leg movements (CALM) scale.

PLoS One

Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil Centre for Engineering, Modeling and Applied Social Sciences (CECS), Federal University of ABC, São Paulo, Brazil.

Published: March 2020

Following unpredictable large-magnitude stance perturbations diverse patterns of arm and leg movements are performed to recover balance stability. Stability of these compensatory movements could be properly estimated through qualitative evaluation. In the present study, we present a scale for evaluation of compensatory arm and leg movements (CALM) in response to unpredictable displacements of the support base in the mediolateral direction. We tested the CALM scale for intra- and inter-rater reliability, correlation with kinematics of arm and leg movement amplitudes, and sensitivity to mode (rotation, translation and combined) and magnitude (velocity) of support base displacements, and also to perturbation-based balance training. Results showed significant intra- and inter-rater coefficients of agreement, ranging from moderate (0.46-0.53) for inter-rater reliability in the arm and global scores, to very high (0.87-0.99) for inter-rater leg scores and all intra-rater scores. Analysis showed significant correlation values between scale scores and the respective movement amplitudes both for arm and leg movements. Assessment of sensitivity revealed that the scale discriminated the responses between perturbation modes, platform velocities, in addition to higher balance recovery stability as a result of perturbation-based balance training. As a conclusion, the CALM scale was shown to provide adequate integrative evaluation of compensatory arm and leg movements for balance recovery stability after challenging stance perturbations, with potential application in fall risk prediction.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6713348PMC
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0221398PLOS

Publication Analysis

Top Keywords

arm leg
24
leg movements
20
balance recovery
12
recovery stability
12
compensatory arm
12
calm scale
12
movements calm
8
stance perturbations
8
evaluation compensatory
8
support base
8

Similar Publications

Workers' Injury Risks Focusing on Body Parts in Reinforced Concrete Construction Projects.

Int J Environ Res Public Health

December 2024

Incheon Disaster Prevention Research Center, Incheon National University, 119 Academy-ro, Yeonsu-gu, Incheon 22012, Republic of Korea.

This study addresses occupational safety in reinforced concrete construction, an area marked by high accident rates and significant worker injury risks. By focusing on activity-body part (A-BP) combinations, this research introduces a novel framework for quantifying injury risks across construction activities. Reinforced concrete construction tasks are categorized into ten specific activities within three major work types: rebar work, formwork, and concrete placement.

View Article and Find Full Text PDF

O-Arm Navigation-Guided Unilateral Biportal Endoscopic Decompression of Far-Out Syndrome.

Neurospine

December 2024

Department of Neurosurgery, Spine Center, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea.

The main aim of this video article is to demonstrate the combined use of O-arm navigation and unilateral biportal endoscopy (UBE) to manage far-out syndrome (FOS). In FOS there is entrapment and compression of the fifth lumbar nerve beyond the foramen and between L5 transverse process and the sacral ala at the lumbosacral junction. Conventional microscopic decompression using a paraspinal approach had been the gold standard for its management.

View Article and Find Full Text PDF

The current study investigated if skin temperature (Tsk) measurement through infrared thermography could reflect the accumulation of training load during the preparatory period of a professional volleyball team. Sixteen athletes (20.1 ± 3.

View Article and Find Full Text PDF

Background: Debridement is considered the first step in treatment of chronic wounds, however, current enzymatic and autolytic debridement agents are slow or ineffective. Previous studies have shown positive initial results with EscharEx® (EX-02 formulation), a Bromelain-based enzymatic debridement agent in development for chronic wounds. The main objective of this study was to assess its efficacy in debriding venous leg ulcers (VLU), compared to gel vehicle (GV) as a placebo control and to non-surgical standard of care (NSSOC).

View Article and Find Full Text PDF
Article Synopsis
  • Individuals with symptomatic lower extremity peripheral artery disease (PAD) experience significant leg pain and reduced quality of life, with limited treatment options currently available.
  • Emerging research shows that regular heat therapy (HT) might enhance cardiovascular and physical function in PAD patients, but practical, unsupervised HT methods for the elderly are lacking.
  • A new portable leg HT system was developed for elderly patients, featuring safety mechanisms and tested for 12 weeks with positive results in terms of usability, safety, and improved clinical outcomes, including increased leg temperature and reduced blood pressure.
View Article and Find Full Text PDF

Want 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!