An Objective Assessment of Neuromotor Control Using a Smartphone App After Repeated Subconcussive Blast Exposure.

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  • Additional Information
    • Source:
      Publisher: MDPI Country of Publication: Switzerland NLM ID: 101204366 Publication Model: Electronic Cited Medium: Internet ISSN: 1424-8220 (Electronic) Linking ISSN: 14248220 NLM ISO Abbreviation: Sensors (Basel) Subsets: MEDLINE
    • Publication Information:
      Original Publication: Basel, Switzerland : MDPI, c2000-
    • Subject Terms:
      Mobile Applications* ; Smartphone* ; Blast Injuries*/physiopathology ; Brain Concussion*/physiopathology; Humans ; Male ; Adult ; Biomechanical Phenomena ; Female ; Military Personnel ; Young Adult ; Longitudinal Studies
    • Abstract:
      Subconcussive blast exposure has been shown to alter neurological functioning. However, the extent to which neurological dysfunction persists after blast exposure is unknown. This longitudinal study examined the potential short- and long-term effects of repeated subconcussive blast exposure on neuromotor performance from heavy weapons training in military personnel. A total of 214 participants were assessed; 137 were exposed to repeated subconcussive blasts and 77 were not exposed to blasts (controls). Participants completed a short stepping-in-place task while an Android smartphone app placed on their thigh recorded movement kinematics. We showed acute suppression of neuromotor variability 6 h after subconcussive blast exposure, followed by a rebound to levels not different from baseline at the 72 h, 2-week, and 3-month post-tests. It is postulated that this suppression of neuromotor variability results from a reduction in the functional degrees of freedom from the subconcussive neurological insult. It is important to note that this change in behavior is short-lived, with a return to pre-blast exposure movement kinematics within 72 h.
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    • Grant Information:
      Christopher K. Rhea is supported by HJF subcontract 5361 and 5975. The INVICTA Study is supported by Award HU0001-19-2-0119 and HU0001-22-2-0025 to Michael J. Roy. Defense Health Agency
    • Contributed Indexing:
      Keywords: balance; blast exposure; military; neuromotor; smartphone app; subconcussive
    • Publication Date:
      Date Created: 20241109 Date Completed: 20241109 Latest Revision: 20241116
    • Publication Date:
      20241116
    • Accession Number:
      PMC11548176
    • Accession Number:
      10.3390/s24217064
    • Accession Number:
      39517961