Research Reports - Self-selected walking speed predicts ability to run following traumatic brain injury

J Head Trauma Rehabil. 2013 Sep-Oct;28(5):379-85

Williams G, Schache AG, Morris ME

OBJECTIVE: To identify factors that predict running ability following traumatic
brain injury (TBI), and to quantify performance thresholds for these predictors.
DESIGN: Cross-sectional cohort study.
PARTICIPANTS: One hundred fourteen people with TBI.
OUTCOME MEASURES: Self-selected walking speed, the high-level mobility assessment
tool, postural stability (lateral center of mass displacement), ankle power
generation at push-off and quality of gait performance (Gait Profile Score).
RESULTS: All predictor variables were all strongly associated with the ability to
run. However, only self-selected walking speed contributed significantly to the
final result. Investigation of performance thresholds for self-selected walking
speed indicated that following TBI, people who walk at speeds of 1.0 m/s or
higher are 16.9 times more likely of being able to run than for those who walk at
speeds of less than 1.0 m/s.
CONCLUSIONS: Self-selected walking speeds higher than 1.0 m/s greatly increase
the likelihood of running following brain injury. The 1.0 m/s threshold, although
slower than able-bodied self-selected walking speeds, may be an important
indicator of the ability to run in this population.

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