STEP/QUICK TURN (SQT)
Description
SQT Report
Functional Implications
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Description
The SQT quantifies turn performance characteristics as the patient takes two forward steps, quickly turns 180o and returns to the starting point. The measured parameters are the time to execute the turn and the sway velocity during the turn execution.
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SQT Comprehensive Report
- The COG trace for each trial is shown on the left side of the report.
- Turn Time quantifies the number of seconds required for the individual to execute the 180-degree in-place turn. Time begins when forward progression is arrested and ends when forward progression in the opposite direction is initiated.
- Turn Sway quantifies the postural stability of the individual during the turn time defined above. Turn sway is expressed as the average COG sway velocity in degrees/second.
- The shaded area on each graphic represents performance outside of the normative data range. Green bars indicate performance within the normal range; red bars indicate performance outside the normal range. A numerical value is given at the top of each bar.
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Functional Implications
Ability to quickly change direction of travel is a critical component of normal mobility. The task is sensitive to impairments of balance because the patient must maintain stability during the turn while the visual and vestibular inputs are being disturbed by rapid turning of the head and eyes. The functional consequences are an inability to perform activities requiring rapid turns, such as dancing or sports, and increased risk for falls during normal activities of daily living that require turning.
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