Insight into, and measurements of, muscle contraction during movement may help improve the assessment of muscle function, quantification of athletic performance, and understanding of muscle behavior, prior to and during rehabilitation following neuromusculoskeletal injury. A self-adhesive, elastic fabric, nanocomposite, skin-strain sensor was developed and validated for human movement monitoring. We hypothesized that skin-strain measurements from these wearables would reveal different degrees of muscle engagement during functional movements. To test this hypothesis, the strain sensing properties of the elastic fabric sensors, especially their linearity, stability, repeatability, and sensitivity, were first verified using load frame tests. Human subject tests conducted in parallel with optical motion capture confirmed that they can reliably measure tensile and compressive skin-strains across the calf and tibialis anterior. Then, a pilot study was conducted to assess the correlation of skin-strain measurements with surface electromyography (sEMG) signals. Subjects did biceps curls with different weights, and the responses of the elastic fabric sensors worn over the biceps brachii and flexor carpi radialis (i.e., forearm) were well-correlated with sEMG muscle engagement measures. These nanocomposite fabric sensors were validated for monitoring muscle engagement during functional activities and did not suffer from the motion artifacts typically observed when using sEMGs in free-living community settings.
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http://dx.doi.org/10.3390/s22186768 | DOI Listing |
BMC Public Health
December 2024
Department of Life Sciences, School of Sciences, European University Cyprus, 6 Diogenes Str. Engomi, 2404, P.O. Box: 22006, Nicosia, 1516, Cyprus.
Background: Malnutrition, depression, and cognitive decline are significant concerns among the elderly population, yet the relationship between these factors remains underexplored, particularly in Cyprus. This study aimed to assess the prevalence of malnutrition, depression, and cognitive decline in free-living elderly people in Cyprus and to explore the associations between these conditions and various anthropometric, social, and dietary factors.
Methods: A cross-sectional study was conducted with 248 participants aged ≥ 60 years, using convenience sampling.
J Hand Surg Glob Online
November 2024
Rothman Orthopaedic Institute, Thomas Jefferson University, Philadelphia, PA.
Purpose: Compressive neuropathies such as carpal tunnel and cubital tunnel syndrome can lead to sensation loss, muscle weakness, joint contractures, and disrupted sleep. The interplay between these conditions and the effect on patients' intimacy is unknown. The purpose of this study was to examine sexual function before and after surgery in patients undergoing carpal tunnel release or cubital tunnel release.
View Article and Find Full Text PDFActa Psychol (Amst)
December 2024
Department of Physical Education, Zhengzhou Normal University, Zhengzhou 450044, China. Electronic address:
Background: With adolescent obesity rates steadily rising, it has become crucial to identify modifiable risk factors to develop effective interventions. This study explores the associations between physical activity (PA) levels, smartphone usage, and obesity risk among Korean adolescents, aiming to inform the design of targeted health promotion programs to mitigate obesity rates in this demographic.
Methods: This cross-sectional analysis used data from 50,407 Korean adolescents who participated in the 2021 Adolescent Health Behavior Online Survey.
Prev Chronic Dis
December 2024
Centers for Disease Control and Prevention, Division of Population Health, Atlanta, Georgia.
Introduction: Little is known about the recency, correlates, and content of health care provider (HCP) counseling about physical activity (PA) among adults with arthritis.
Methods: We analyzed data from the Porter Novelli FallStyles cross-sectional survey of noninstitutionalized US adults. Among adults with arthritis, we assessed the recency of HCP counseling about PA; counseling content, including PA assessment/screening and advice/counseling; and recommendations.
Front Sports Act Living
December 2024
Performance Evaluation and Integrated Enhancement Lab, Beijing Research Institute of Sports Science, Beijing, China.
Objective: This study aimed to investigate the effects of combining inspiratory muscle resistance with strength training on lung function and aerobic capacity in artistic swimmers.
Methods: This research constitutes a placebo-controlled randomized trial, involving a five-week walking program conducted twice a week. Fourteen female artistic swimmers were randomly assigned to either the experimental group (TG group, = 7) or the control group (CG group, = 7).
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