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27 results on '"Moon, Yaejin"'

9. Validating Virtual Time to Contact With Home-Based Technology in Young and Older Adults.

Author

Hsieh, Katherine L., Moon, Yaejin, Ramkrishnan, Vignesh, Ratnam, Rama, and Sosnoff, Jacob J.

Subjects
BIOSENSORS, POSTURAL balance, ACCIDENTAL falls, KINEMATICS, RESEARCH evaluation, STATISTICS, DATA analysis, HOME environment, TASK performance, RECEIVER operating characteristic curves
Abstract

Virtual time to contact (VTC) is a measure of postural stability that estimates the virtual time it would take to reach an individual's stability boundary. This study aimed to validate VTC as measured by a depth sensor and determine whether VTC from the depth sensor distinguishes between older adult fallers and nonfallers compared with a force platform. VTC was assessed in 10 young and 20 older adults by having participants lean in a circular direction followed by 5 balance tests: eyes open, dual task, eyes open foam, eyes closed, and eyes closed foam. Spearman rank correlations and Bland–Altman plots were conducted to determine validity, and receiver operating characteristic curves were constructed to discriminate between fallers and nonfallers. Significant correlations were found in the dual task (P =.03), eyes open foam (P <.01), and eyes closed foam conditions (P =.05). The depth sensor discriminated between fallers and nonfallers in the eyes open (P =.02), dual task (P =.03), and eyes open foam conditions (P =.04). VTC was in agreement between the 2 devices, and VTC derived from a depth sensor can be used to discriminate between older adult fallers and nonfallers during challenging balance conditions. [ABSTRACT FROM AUTHOR]

Published
2019
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13. Characterization of Motor-Evoked Responses Obtained with Transcutaneous Electrical Spinal Stimulation from the Lower-Limb Muscles after Stroke

Author

Moon, Yaejin, primary, Zuleger, Taylor, additional, Lamberti, Martina, additional, Bansal, Ashir, additional, Mummidisetty, Chaithanya K., additional, McKenzie, Kelly A., additional, Yingling, Lindsey, additional, Madhavan, Sangeetha, additional, Roth, Elliot J., additional, Lieber, Richard L., additional, and Jayaraman, Arun, additional

Published
2021
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17. A machine learning approach for gait speed estimation using skin-mounted wearable sensors: From healthy controls to individuals with multiple sclerosis

Author

McGinnis, Ryan S., primary, Mahadevan, Nikhil, additional, Moon, Yaejin, additional, Seagers, Kirsten, additional, Sheth, Nirav, additional, Wright, John A., additional, DiCristofaro, Steven, additional, Silva, Ikaro, additional, Jortberg, Elise, additional, Ceruolo, Melissa, additional, Pindado, Jesus A., additional, Sosnoff, Jacob, additional, Ghaffari, Roozbeh, additional, and Patel, Shyamal, additional

Published
2017
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