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A Practical Guide to Using Inertial Sensor Mobility Assessments

Mobility: A Key to Health,
Performance, and Independence

Mobility is a core indicator of health, independence, and quality of life. Whether you’re working in a clinical setting, a sports performance facility, a research lab, or a long-term care environment, understanding how an individual moves—and how that movement changes over time—is critical for making informed decisions.

Postural Sway 

Sit-to-Stand

Timed Up and Go (TUG)

Timed Walk

Data-Driven Mobility
Assessments with IMUs

IMUs bring objectivity and precision to common mobility tests like the 30-Second Chair Stand, TUG, and 10-Meter Walk. Beyond simple timing, they capture detailed metrics such as acceleration, gait speed, turn velocity, stride length, and asymmetry indices. These insights reveal subtle deficits often missed by observation, establish clear baselines, and track progress over time. Each test generates reports that support clinical decision-making, guide tailored interventions, and strengthen documentation for insurers and referring providers.

Timed Up & Go (TUG) Report from Noraxon IMU Mobility Assessments. The protocol diagram shows a patient standing from a chair, walking 3 meters, turning, walking back, and sitting down, segmented into phases: Sit-to-Stand, Walk 1, Turn 1, Walk 2, Turn 2, and Stand-to-Sit. Results table displays timing for each phase, with total time of 14.4 seconds. Additional metrics include stand duration, walk duration, cadence (106 steps/min), step count (7), double support percentages for left (16%) and right (12.3%) legs, and stance ratio asymmetry. Data is shown with colored bars and phase-specific breakdowns.
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