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Motion tracking provides unique insights into motor, cognitive, and social development by capturing subtle variations into how movements are planned and controlled. Here, we present a low-cost, wearable movement measurement platform, KiD, specifically designed for tracking the movements of infants and children in a variety of natural settings. KiD consists of a small, lightweight sensor containing a nine-axis inertial measurement unit plus an integrated processor for computing rotations. Measurements of three-dimensional acceleration using KiD compare well with those of current state-of-the-art optical motion capture systems. As a proof of concept, we demonstrate successful classification of different types of sinusoidal right arm movements using KiD.
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http://dx.doi.org/10.1016/j.isci.2021.102742 | DOI Listing |
Trials
June 2025
Research and Development Service, Jesse Brown Veterans Affairs Medical Center, Chicago, IL, 60612, USA.
Background: Exposure to air pollutants in indoor and outdoor air is associated with adverse chronic obstructive pulmonary disease (COPD) outcomes. To date, few studies have investigated indoor air filtration for improving indoor air quality and health-related outcomes in vulnerable patient populations with COPD.
Methods: This study seeks to evaluate the effectiveness of stand-alone air filtration for reducing residential indoor particulate matter concentrations and improving health-related outcomes in a high-risk urban cohort of US military Veterans with COPD in metropolitan Chicago using a long-term (1-year), randomized, single-blind, placebo-controlled, parallel group trial.
J Med Internet Res
March 2025
Innovative Models for Aging Care and Technology, IRCCS-INRCA, Istituto Nazionale di Riposo e Cura per Anziani, Ancona, Italy.
Background: Stroke is one of the most common cerebral vascular diseases, usually affecting people aged 60 years and older. It leads to a variety of disabilities requiring motor and cognitive rehabilitation. Poststroke rehabilitation is critical for recovery, particularly for upper limb impairments, which affect approximately 80% of stroke survivors.
View Article and Find Full Text PDFSci Rep
February 2025
Department of Obstetrics and Gynecology, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
Fetal magnetocardiography (fMCG) is a non-invasive technique that measures the magnetic fields associated with fetal heart electrical activity outside of the maternal abdomen. fMCG has high temporal precision for measuring fetal heart rate and its variability which reflects fetal neurodevelopment. Free of cryogenics and low-cost sensors called microfabricated optically pumped magnetometers (OPMs) have emerged as an alternate to cryogenic SQUID (Superconducting Quantum Interference Device) systems to record fMCG.
View Article and Find Full Text PDFAnal Methods
March 2025
Department of Psychology, Southern Methodist University, Dallas, TX, USA.
Microplastics from urban and industrial waste are threatening ecosystems worldwide. Quantification methods for soil samples have been proposed but typically require complex and expensive laboratory procedures, which are not accessible to the public. Therefore, we developed a simplified Nile Red fluorescent dye method with low-budget materials that can be readily used as a stand-alone demonstration or implemented in environmental education modules.
View Article and Find Full Text PDFNeurophotonics
January 2025
Northeastern University, Department of Bioengineering, Boston, Massachusetts, United States.
Significance: Functional brain imaging experiments in awake animals require meticulous monitoring of animal behavior to screen for spontaneous behavioral events. Although these events occur naturally, they can alter cell signaling and hemodynamic activity in the brain and confound functional brain imaging measurements.
Aim: We developed a centralized, user-friendly, and stand-alone platform that includes an animal fixation frame, compact peripheral sensors, and a portable data acquisition system.