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Summary

This summary is machine-generated.

Physical therapists (PTs) use eye tracking to observe patients during balance rehabilitation. PTs focus most on lower extremities (LE), shifting attention to the head as balance worsens.

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Area of Science:

Biomechanics and Motor Control
Rehabilitation Science
Human-Computer Interaction

Background:

Physical therapists (PTs) are crucial in balance rehabilitation, relying on visual observation for patient assessment.
Eye tracking technology offers objective measurement of PTs' visual attention during clinical tasks.
Previous studies analyzed PT visual behavior based on experience, but not patient performance.

Purpose of the Study:

To identify body regions PTs visually focus on during standing balance evaluations.
To determine if PTs' visual attention shifts based on observed patient balance performance levels.

Main Methods:

Eleven pairs of older adults and PTs participated in the study.
PTs wore eye tracking glasses while observing older adults performing standing balance exercises.
Defined areas of interest (head, torso, upper extremities (UE), lower extremities (LE)) were analyzed for visit frequency and duration.

Main Results:

PTs dedicated the most time and had the highest frequency of visual attention to the lower extremities (LE).
Conversely, PTs showed the fewest and shortest visual fixations on the upper extremities (UE).
As patient balance performance declined, PTs increased visual attention to the head and decreased fixation duration on the torso and LE.

Conclusions:

Lower body strategies are key visual cues PTs use to assess balance.
PTs dynamically adjust their visual scanning patterns, rapidly assessing the whole body as balance challenges increase.
Findings can inform the development of PT-centric balance assessment tools and training models.