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APDM Wearable Motion Analysis

APDM Wearable Motion Analysis

Introducing APDM, a groundbreaking platform designed to revolutionize movement science and neurodegenerative disease research.

APDM enables the scientific community to conduct high-quality research, accelerate clinical trials with new biomarkers and endpoints, and improve the quality of life for those with movement disorders through precision medicine. Join us in transforming research and changing lives with APDM.

It has 3 types of software analysis selection for different application:

  1. Motion Studio - Raw Movement Data
  2. Mobility Lab - Gait and Balance Analysis
  3. Moveo Explorer - Full-body Kinematics
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Mobility Lab

Mobility Lab provides sensitive, reliable and valid outcome measure for assessing functional mobility anywhere.

Full Body GAIT Analysis

The APDM sensor is a sophisticated device that offers a wide range of measurements for both lower limb and upper limb movements. For the lower limb, it can measure cadence, elevation at midswing, gait cycle duration, gait speed, double support, terminal double support, lateral step variability, circumduction, dorsiflexion, plantarflexion, stance, step duration, stride length, swing, toe-out angle, and stride length variability.

On the other hand, for the upper limb, the sensor can capture arm swing velocity and arm range of motion. Additionally, it can measure anticipatory postural adjustment (APA) parameters such as APA duration, first step duration, first step range of motion, sagittal APA peak, and coronal APA peak.


The APDM sensor offers a comprehensive suite of measurements to assess balance, including trunk and lumbar range of motion (coronal, sagittal, and transverse), turning (angle, duration, turn velocity, steps in turn), sit-to-stand (lean angle, duration), and stand-to-sit (lean angle, duration). These measurements provide valuable insights into movement patterns critical for understanding and improving balance control, facilitating the development of targeted interventions to reduce the risk of falls and improve balance in individuals with movement disorders.

  • Tug

    Timed Up and Go (TUG) is a standard test to evaluate an individual's mobility. It gauges postural transitions (sit, stand, and turning). Number of Opal: 3+

  • Walk

    The Walk test is a comprehensive assessment of a subject's gait, examining the full body gait (legs, arms, and trunk), asymmetry variability, and turning. Number of Opal: 3+

  • Postural Sway

    Postural Sway (Sawy) test is a common test of quiet stance balance examining the postural sway. Number of Opal: 1+

  • mCTSIB

    The mCTSIB is a test to assess balance under various conditions, evaluating postural sway, visual and proprioceptive dependence, and vestibular loss. Number of Opal: 1+

  • mBESS

    The mBESS test is a shortened version of the BESS test, used for assessing postural stability in mild head injury cases and guiding return-to-sport decisions. Opal: 1+

  • 360° Turn Test

    The 360° Turn Test is measure of dynamic balance. It measures turn velocity, time and number of steps. Number of Opal: 6+

  • 5 x Sit to Stand

    The 5 Times Sit to Stand is a measure of functional lower lib muscle strength. It is useful in quantifying functional change of transitional movement. It measures trunks excursion, stand time, cadence, and total time. Number of Opal: 6+

  • Saw

    The Stand and Walk (SAW) test allow clinicians and nonexperts to quickly obtain objective measures of standing balance, step-initiation, gait and turning.

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Moveo Explorer

Through automated kinematic analysis, Moveo Explorer acts as a portable motion capture lab providing joint angle data, in addition to gait and balance analysis.

Full-Body Kinematics

APDM enables full-body kinematic measurement, capturing a wide range of movements across the body. This includes neck flexion-extension, lateral bending, and rotation; back flexion-extension, lateral bending, and rotation; shoulder flexion-extension, abduction-adduction, and internal-external rotation; elbow flexion-extension and supination-pronation; wrist flexion-extension and ulnar-radial deviation; hip flexion-extension, abduction-adduction, and internal-external rotation; knee flexion-extension, varus-valgus, and internal-external rotation; and ankle dorsiflexion-plantarflexion, inversion-eversion, and abduction-adduction.

Lower Limb Kinematics

APDM provides comprehensive lower-limb kinematic measurement, capturing movements in the lumbar region including flexion-extension, lateral bending, and left-right rotation; hip movements such as flexion-extension, abduction-adduction, and internal-external rotation; knee flexion-extension, varus-valgus, and internal-external rotation; and ankle dorsiflexion-plantarflexion, inversion-eversion, and abduction-adduction.

Motion Studio

Motion Studio allow user to record and export raw data of the motion sensors.


The APDM sensor offers high sampling and syncs with MATLAB, Java, Python, and C. It provides raw kinematic data, streams or logs data, and lasts 8hr-4d on a charge. With up to 24 Opals on one network.

Sensor Specification