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Single-task and dual-task tandem gait test performance after concussion.

David R Howell¹, Louis R Osternig², Li-Shan Chou²

¹The Micheli Center for Sports Injury Prevention, USA; Division of Sports Medicine, Department of Orthopaedics, Boston Children's Hospital, USA; Brain Injury Center, Boston Children's Hospital, USA.

Journal of Science and Medicine in Sport

|February 8, 2017

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Dual-task tandem gait testing reveals prolonged post-concussion deficits in athletes. This method enhances detection of balance control issues compared to single-task testing, aiding return-to-sport decisions.

Area of Science:

Neurology
Sports Medicine
Biomechanics

Background:

Concussion is a common injury in athletes, often leading to impaired motor function.
Assessing dynamic balance and cognitive-motor interference is crucial for concussion recovery and return-to-sport protocols.

Purpose of the Study:

To compare single-task and dual-task tandem gait test performance in athletes post-concussion versus controls.
To evaluate observer-timed, spatio-temporal, and center-of-mass (COM) balance control measurements.

Main Methods:

Ten athletes post-concussion and seven uninjured controls underwent tandem gait testing with and without a concurrent cognitive task.
Whole-body motion analysis was used to measure test completion time, velocity, cadence, and COM frontal plane displacement.

Keywords:

Balance Concussion Dual-task Locomotion Mild traumatic brain injury Tandem gait

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Main Results:

Athletes post-concussion showed significantly longer dual-task completion times in the first two weeks post-injury.
Dual-task cadence was significantly lower in the concussion group.
Strong correlations were found between tandem gait test time and COM medial-lateral displacement during dual-tasking.

Conclusions:

Dual-task tandem gait testing detects longer-lasting deficits post-concussion than single-task testing.
The tandem gait test, particularly under dual-task conditions, shows promise as a clinical tool for assessing dynamic motor function and informing return-to-sport decisions.