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Rhea CK, Yamada M, Kuznetsov NA, Jakiela JT, LoJacono CT, Ross SE, Haran FJ, Bailie JM, Wright WG. Neuromotor changes in participants with a concussion history can be detected with a custom smartphone app. PLoS One 2022; 17:e0278994. [PMID: 36520862 PMCID: PMC9754195 DOI: 10.1371/journal.pone.0278994] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 11/28/2022] [Indexed: 12/23/2022] Open
Abstract
Neuromotor dysfunction after a concussion is common, but balance tests used to assess neuromotor dysfunction are typically subjective. Current objective balance tests are either cost- or space-prohibitive, or utilize a static balance protocol, which may mask neuromotor dysfunction due to the simplicity of the task. To address this gap, our team developed an Android-based smartphone app (portable and cost-effective) that uses the sensors in the device (objective) to record movement profiles during a stepping-in-place task (dynamic movement). The purpose of this study was to examine the extent to which our custom smartphone app and protocol could discriminate neuromotor behavior between concussed and non-concussed participants. Data were collected at two university laboratories and two military sites. Participants included civilians and Service Members (N = 216) with and without a clinically diagnosed concussion. Kinematic and variability metrics were derived from a thigh angle time series while the participants completed a series of stepping-in-place tasks in three conditions: eyes open, eyes closed, and head shake. We observed that the standard deviation of the mean maximum angular velocity of the thigh was higher in the participants with a concussion history in the eyes closed and head shake conditions of the stepping-in-place task. Consistent with the optimal movement variability hypothesis, we showed that increased movement variability occurs in participants with a concussion history, for which our smartphone app and protocol were sensitive enough to capture.
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Affiliation(s)
- Christopher K. Rhea
- Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, United States of America
- College of Health Sciences, Old Dominion University, Norfolk, Virginia, United States of America
- * E-mail:
| | - Masahiro Yamada
- Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, United States of America
- Moss Rehabilitation Research Institute, Elkins Park, Pennsylvania, United States of America
| | - Nikita A. Kuznetsov
- Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, United States of America
- Department of Psychology, University of Cincinnati, Cincinnati, Ohio, United States of America
| | - Jason T. Jakiela
- Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, United States of America
- Department of Physical Therapy, University of Delaware, Newark, Delaware, United States of America
| | - Chanel T. LoJacono
- Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, United States of America
- Department of Kinesiology, Missouri Southern State University, Joplin, Missouri, United States of America
| | - Scott E. Ross
- Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, United States of America
| | - F. J. Haran
- Department of Kinesiology, University of North Carolina at Greensboro, Greensboro, North Carolina, United States of America
- Uniformed Services University of the Health Sciences, Bethesda, Maryland, United States of America
| | - Jason M. Bailie
- Naval Hospital Camp Pendleton, Oceanside, California, United States of America
- Traumatic Brain Injury Center of Excellence (TBICoE), Silver Spring, Maryland, United States of America
- General Dynamics Information Technology, Falls Church, Virginia, United States of America
| | - W. Geoffrey Wright
- Department of Health and Rehabilitation Sciences, Temple University, Philadelphia, Pennsylvania, United States of America
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Chen FC, Chen HL, Tu JH, Tsai CL. Effects of light touch on postural sway and visual search accuracy: A test of functional integration and resource competition hypotheses. Gait Posture 2015; 42:280-4. [PMID: 26112777 DOI: 10.1016/j.gaitpost.2015.06.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/06/2015] [Revised: 05/11/2015] [Accepted: 06/03/2015] [Indexed: 02/02/2023]
Abstract
People often multi-task in their daily life. However, the mechanisms for the interaction between simultaneous postural and non-postural tasks have been controversial over the years. The present study investigated the effects of light digital touch on both postural sway and visual search accuracy for the purpose of assessing two hypotheses (functional integration and resource competition), which may explain the interaction between postural sway and the performance of a non-postural task. Participants (n=42, 20 male and 22 female) were asked to inspect a blank sheet of paper or visually search for target letters in a text block while a fingertip was in light contact with a stable surface (light touch, LT), or with both arms hanging at the sides of the body (no touch, NT). The results showed significant main effects of LT on reducing the magnitude of postural sway as well as enhancing visual search accuracy compared with the NT condition. The findings support the hypothesis of function integration, demonstrating that the modulation of postural sway can be modulated to improve the performance of a visual search task.
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Affiliation(s)
- Fu-Chen Chen
- Department of Recreational Sport & Health Promotion, National Pingtung University of Science and Technology, Pingtung County, Taiwan.
| | - Hsin-Lin Chen
- Department of Recreational Sport & Health Promotion, National Pingtung University of Science and Technology, Pingtung County, Taiwan
| | - Jui-Hung Tu
- Department of Physical Education, National Pingtung University, Pingtung County, Taiwan
| | - Chia-Liang Tsai
- Institute of Physical Education, Health, and Leisure Studies, National Cheng Kung University, Tainan City, Taiwan
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Chen YC, Tseng TC, Hung TH, Stoffregen TA. Precursors of post-bout motion sickness in adolescent female boxers. Exp Brain Res 2014; 232:2571-9. [PMID: 24671652 DOI: 10.1007/s00221-014-3910-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Accepted: 03/07/2014] [Indexed: 01/14/2023]
Abstract
Athletic head trauma (both concussive and sub-concussive) is common among adolescents. Head trauma often is followed by motion sickness-like symptoms, by changes in cognitive performance, and by changes in standing body sway. We evaluated adolescent female boxers who did and did not report motion sickness after a bout (i.e., a boxing match), together with a control group of non-boxers. We asked whether pre-bout body sway would differ between boxers who experienced post-bout motion sickness and those who did not. In addition, we asked whether pre-bout cognitive performance would differ between non-boxers and boxers with and without post-bout motion sickness. Seven of twenty boxers reported motion sickness after a bout. Pre-bout measures of cognitive performance and body sway were different in boxers who reported post-bout motion sickness than in boxers without post-bout sickness or controls. The results suggest that susceptibility to motion sickness-like symptoms in adolescent female boxers may be manifested in characteristic patterns of body sway and cognitive performance. It may be possible to use pre-bout data to predict susceptibility to post-bout symptoms.
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Affiliation(s)
- Yi-Chou Chen
- School of Kinesiology, University of Minnesota, Minneapolis, MN, USA
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Chen YC, Tseng TC, Hung TH, Hsieh CC, Chen FC, Stoffregen TA. Cognitive and postural precursors of motion sickness in adolescent boxers. Gait Posture 2013; 38:795-9. [PMID: 23680426 DOI: 10.1016/j.gaitpost.2013.03.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/20/2012] [Revised: 03/15/2013] [Accepted: 03/26/2013] [Indexed: 02/02/2023]
Abstract
Athletic head trauma (both concussive and sub-concussive) is common among adolescents. Concussion typically is followed by motion sickness-like symptoms, by changes in cognitive performance, and by changes in standing body sway. We asked whether pre-bout body sway would differ between adolescent boxers who experienced post-bout motion sickness and those who did not. In addition, we asked whether pre-bout cognitive performance would differ as a function of adolescent boxers' post-bout motion sickness. Nine of nineteen adolescent boxers reported motion sickness after a bout. Pre-bout measures of cognitive performance and body sway differed between boxers who reported post-bout motion sickness and those who did not. The results suggest that susceptibility to motion sickness-like symptoms in adolescent boxers may be manifested in characteristic patterns of body sway and cognitive performance. It may be possible to use pre-bout data to predict susceptibility to post-bout symptoms.
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Affiliation(s)
- Yi-Chou Chen
- School of Kinesiology, University of Minnesota, United States
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