Clinical journal of sport medicine : official journal of the Canadian Academy of Sport Medicine · 2019
Dual-Task Tandem Gait and Average Walking Speed in Healthy Collegiate Athletes.
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Howell David R, Oldham Jessie R, Meehan William P, DiFabio Melissa S, Buckley Thomas A
Аннотация
OBJECTIVES: To (1) examine the association between a commonly used concussion test, tandem gait, in single/dual-task conditions with single-task and dual-task average walking speed, (2) characterize the prevalence of tandem gait false positives, and (3) develop a normative reference range of dual-task tandem gait times.
DESIGN: Cross-sectional study.
SETTING: Two NCAA collegiate athletic facilities.
INDEPENDENT VARIABLES: Athletes completed the tandem gait test and a gait evaluation in single/dual-task conditions during a preseason examination.
MAIN OUTCOME MEASURES: Associations between tandem gait times and average walking speeds were evaluated using multiple linear regression models. Various tandem gait test time pass/fail cutoffs were calculated to examine false-positive rates.
RESULTS: Among the 171 participants (103 men, 19.8 ± 1.2 years of age), dual-task tandem gait completion times were independently associated with dual-task average walking speed [β = -4.018; 95% confidence interval (CI), -7.153 to -0.883], but single-task associations were not found. Male gender was associated with faster tandem gait times in both single-task (β = -0.880, 95% CI, -1.731 to -0.029) and dual-task conditions (β = -2.225, 95% CI, -3.691 to -0.759). A pass/fail cutoff threshold of 14 seconds resulted in a 2% false-positive rate for single-task tandem gait, while it resulted in a 29% false-positive rate during dual-task tandem gait.
CONCLUSIONS: Average walking speed and dual-task tandem gait represent objective measures that are useful in concussion management. While a single-task tandem gait cutoff of 14 seconds seems appropriate for males, adjustments may be necessary based on sex and alternate pass/fail criteria may be appropriate for dual-task tandem gait.
DESIGN: Cross-sectional study.
SETTING: Two NCAA collegiate athletic facilities.
INDEPENDENT VARIABLES: Athletes completed the tandem gait test and a gait evaluation in single/dual-task conditions during a preseason examination.
MAIN OUTCOME MEASURES: Associations between tandem gait times and average walking speeds were evaluated using multiple linear regression models. Various tandem gait test time pass/fail cutoffs were calculated to examine false-positive rates.
RESULTS: Among the 171 participants (103 men, 19.8 ± 1.2 years of age), dual-task tandem gait completion times were independently associated with dual-task average walking speed [β = -4.018; 95% confidence interval (CI), -7.153 to -0.883], but single-task associations were not found. Male gender was associated with faster tandem gait times in both single-task (β = -0.880, 95% CI, -1.731 to -0.029) and dual-task conditions (β = -2.225, 95% CI, -3.691 to -0.759). A pass/fail cutoff threshold of 14 seconds resulted in a 2% false-positive rate for single-task tandem gait, while it resulted in a 29% false-positive rate during dual-task tandem gait.
CONCLUSIONS: Average walking speed and dual-task tandem gait represent objective measures that are useful in concussion management. While a single-task tandem gait cutoff of 14 seconds seems appropriate for males, adjustments may be necessary based on sex and alternate pass/fail criteria may be appropriate for dual-task tandem gait.