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American Journal of the Medical Sciences ; 365(Supplement 1):S89-S90, 2023.
Article in English | EMBASE | ID: covidwho-2228433


Purpose of Study: Assessment of an individual's postural stability serves as an indirect measure for both physiological and biomechanical stresses placed on an individual. More recently, some individuals after COVID-19 (SARS-CoV-2) infection have been identified with neurological complaints (Post-Acute Sequelae of Covid - PASC). These individuals can also be predisposed to decreased postural stability and an increased risk for falls. The purpose of the project was to incorporate two different wearable technology (virtual reality (VR) based virtual immersive sensorimotor test - VIST and pressure senor-based smart sock) to assess postural stability among healthy and individuals with PASC to quantify the overall status of the postural control system. Methods Used: All methods were conducted based on the University's Institutional Review Board (IRB# 21-296) with informed consent. A total of 12 males and females (six healthy and six with self-reported complaints of PASC) have completed the study so far. All participants were tested using the VIST, while standing on a force platform and wearing the smart sock simultaneously. The (VIST uses a VR headset and proprietary software to test an individual's integrated sensory, motor, and cognitive processes through eight unique tests (smooth pursuits, saccades, convergence, peripheral vision, object discrimination, gaze stability, head-eye coordination, cervical neuromotor control). Center of pressure (COP) data from force platform and pressure sensor data from the smart socks were used to calculate anterior-posterior and medial-lateral postural sway variables. These postural sway variables were analyzed using an independent samples t-test between the healthy and PASC groups at an alpha set at 0.05. Summary of Results: Significant differences (p < 0.05) between healthy and individuals with PASC with anteriorposterior and medial-lateral postural sway variables derived from COP measures, with individuals with PASC exhibiting significantly greater postural sway compared to healthy individuals in all eight tests of the VIST. The measures from the smart sock, while not statistically significant, exhibited the same findings of increased postural sway in individuals with PASC compared to healthy individuals. Conclusion(s): Findings from the current analysis revealed that individuals with PASC demonstrated significantly worse postural control compared to the healthy, when challenged with various sensorimotor tests in VIST, suggesting that postural control is compromised due to PASC. While not statistically significant due to a lower sample size, the measures from smart sock also indicated the same findings of the COP measures, suggesting a promising use of wearable technology in postural control assessments. In addition to other neurological signs and symptoms of PASC, assessment of postural stability using the VIST can provide more detailed clinical measures for diagnosis, treatment, and prognosis assessments. Copyright © 2023 Southern Society for Clinical Investigation.

Neurology ; 97(1):3-11, 2021.
Article in English | Web of Science | ID: covidwho-1459256


Neurology(R) manuscript submissions continue to increase every year;mid-2020 saw a large influx of manuscripts related to complications of coronavirus disease 2019 (COVID-19), many of which went through an expedited peer-review process. The journal received 4301 new and 691 revised manuscripts between April 1, 2020, and September 30, 2020 (compared to 3336 new and 597 revised manuscripts during the same period in 2019). We received 7158 peer reviews (compared to 4455 during the same period in 2019) evaluating these papers.

International Journal of Environmental Research & Public Health [Electronic Resource] ; 18(8):13, 2021.
Article in English | MEDLINE | ID: covidwho-1208359


Research surrounding the mandated use of non-medical fabric masks is inconsistent and often confusing when compared to the standard N95. A recently published standard from ASTM International and the Centers for Disease Control and Prevention attempts to normalize evaluation procedures. The purpose of this study is to conduct a preliminary evaluation of the new methods for testing filtration efficiency of masks outlined by ASTM International F3502, where results can be directly compared to standards outlined for non-medical fabric masks. Eleven consumer non-medical fabric masks were tested for filtration efficiency and airflow resistance using a face filtration mount in accordance with the newly released ASTM International standard for facial barriers. The mean FE% (SD) ranged from 0.46% (0.44) to 11.80% (2.76) with the 3-layer athletic mesh having the highest performance and the highest deviations. All the masks tested following the procedure failed to meet to minimum FE of 20%;however all masks performed below the minimum upper limits for airflow resistance. Using a non-medical fabric masks as the sole mitigation strategy may not be as effective, as previously reported. With efforts to standardize and regulate the non-medical fabric mask market, this study demonstrates a variety of currently available consumer mask products do not meet the minimum standards nor are these remotely close to the standards of surgical or N95 masks.