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A Proposal for Complex Gait Evaluation Using Dual-Task Gait Termination Time.

Context: Gait termination time (GTT) has been used to predict falls in older adults but has not been explored in the sport rehabilitation setting. The incorporation of a concurrent cognitive task as a complex measure of gait in this clinical population could lead to better health-related outcomes. O...

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Publicado en:Journal of Sport Rehabilitation Vol. 30; no. 4; pp. 525 - 531
Autores principales: Johnson, Rachel S., Scott, Kendall H., Lynall, Robert C.
Formato: research tables/charts Journal Article
Publicado: Human Kinetics Publishers, Inc. May2021
Acceso en línea:Ver este registro en EBSCOhost
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        10566716
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      jtl: Journal of Sport Rehabilitation
      issn: 10566716
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    pubinfo:
      dt: May2021
      vid: 30
      iid: 4
      pid: 553
      pub: Human Kinetics Publishers, Inc.
      place: Champaign, Illinois
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      ui:
        149983726
        149983726
        149983726
        10.1123/jsr.2020-0080
        149983726
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        atl: A Proposal for Complex Gait Evaluation Using Dual-Task Gait Termination Time.
      aug:
        au:
          Johnson, Rachel S.
          Scott, Kendall H.
          Lynall, Robert C.
      sug:
        subj:
          Gait Analysis
          Task Performance and Analysis
          Cognition Evaluation
          Reaction Time
          Gait Disorders, Neurologic
          Human
          Female
          Male
          Young Adult
          Cross Sectional Studies
          Body Height
          Body Mass Index
          Outcome Assessment
          Repeated Measures
          Analysis of Variance
          Post Hoc Analysis
          T-Tests
          Walking
          Rehabilitation
          Brain Concussion
          Descriptive Statistics
          Confidence Intervals
          Female
          Male
      ab: Context: Gait termination time (GTT) has been used to predict falls in older adults but has not been explored in the sport rehabilitation setting. The incorporation of a concurrent cognitive task as a complex measure of gait in this clinical population could lead to better health-related outcomes. Objective: To compare the effect of planned and unplanned gait termination with and without a concurrent cognitive task on reaction time (RT), gait velocity, and GTT. Design: Cross-sectional. Setting: Laboratory. Participants: Twenty young adults (females 60.0%, age 20.1 [0.9] y, height 169.5 [8.8] cm, mass 67.4 [10.8] kg). Intervention: Participants completed 6 planned and 6 unplanned gait termination trials on an instrumented gait mat with and without a cognitive task. Main Outcome Measures: The authors measured RT (s), gait velocity (m/s), GTT (s), and normalized GTT (s2/m). A 2 (motor) × 2 (cognitive) repeated-measures analysis of variance (α =.05) was used; significant interaction effects were explored using Bonferroni-corrected t tests (α <.008). Results: Participants walked more slowly during dual-task trials compared with single-task trials (F1,19 = 4.401, P =.050). Participants walked significantly more slowly with a cognitive task during planned (P <.001, mean difference = −0.184 m/s, 95% CI, −0.256 to −0.111) and unplanned (P =.001, mean difference = −0.111 m/s, 95% CI, −0.173 to −0.050) gait termination. Participants walked significantly more slowly (P <.001, mean difference = −0.142 m/s, 95% CI, −0.210 to −0.075) when performing the most difficult task, unplanned termination with a cognitive task, than when performing the least difficult task, planned termination with no cognitive task. We observed a cognitive task main effect such that adding a cognitive task increased RT (F1,19 = 16.375, P =.001, mean difference = −0.118 s, 95% CI, −0.178 to −0.057) and slowed normalized GTT (F1,19 = 5.655, P =.028, mean difference = −0.167 s2/m, 95% CI, −0.314 to −0.020). Conclusions: Overall, participants displayed more conservative gait strategies and slower RT, normalized GTT, and gait velocity as task difficulty increased. More investigation is needed to truly understand the clinical meaningfulness of these measures in athletic injuries.
      pubtype: Academic Journal
      doctype:
        research
        tables/charts
        Journal Article
      ougenre: Article
    language: English
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