NeuroCom International

CLINICAL RESEARCH SYSTEM®

EquitestDescription
Research Software Package
Clinical Software Package
Performance Characteristics
Optional Capabilities











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NeuroCom®, a division of Natus® CRS™

Motor Settings
Motor Settings

Motor Settings
Motor Settings

Description

The clinical efficacy of NeuroCom EquiTest and SMART EquiTest Computerized Dynamic Posturography (CDP) systems, the recording capabilities of the NeuroCom Dual Top forceplate from AMTI, and NeuroCom’s dynamic research software package are combined in the new Clinical Research System (CRS).

The CRS systems provide the researcher with objective documentation of the balance control functions (sensory as well as voluntary and reflexive motor) in the population to be studied, the ability to design complex sensory and motor challenges to emulate real world conditions, and full access to the detailed force response data (X, Y and Z components) to accurately demonstrate the impact of those challenges on human balance performance.

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Performance Characteristics

Multiple servomotors provide smooth, accurate movements of the NeuroCom Dual Top forceplate from AMTI and/or the surround. User can specify the waveforms to control the servomotors, which can be activated individually or in pairs.

Translation:
• ±2.5” (6.35 cm) from center, for a maximum of 5” (12.7 cm) in the forward-backward direction
• Maximum velocity: 20 cm/s

Rotation:
• ±10o from center, either toes-up or toes-down, for a maximum of 20o
• Maximum velocity: 50o/s

Visual Surround Movement:
• ±10o from center.
• Maximum velocity: 15o/s

NeuroCom Dual Top Forceplate (Per Plate):
• Fz Capacity, lb (N): 400 (1800)
• Fx, Fy Capacity, lb (N): 40 (180)
• Mz Capacity, in-lb (Nm): 300 (34)
• Mx Capacity, in-lb (Nm): 1200 (135)
• My Capacity, in-lb (Nm): 600 (68)
• Sampling rate: 100 Hz

Forceplate and/or surround movements and data acquisition can be initiated either under operator control or by an external synch pulse. A synch-out pulse is also available to synchronize external devices.

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Research Software Package

User programmable operating system for flexibility in designing research protocols. User can specify:

  • Independent control of forceplate and surround movements

  • —Waveform
  • Mathematical function

  • Look-up tables

  • —Step or ramp function
    —Sway referencing
    —Movement onset delay
  • Trial duration

  • Cursor display


  • Data from the AMTI forceplate and motor positions can be exported to a text delimited file for easy access by statistical packages.

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    Clinical Software Package

    User can select standardized assessment protocols and compare to normative data:

    Sensory Impairments Motor Impairments Functional Limitations
    Sensory Organization Test (SOT)

    Motor Control Test (MCT)

    Adaptation Test (ADT)

    Weight Bearing Squat (WBS)

    Limits of Stability (LOS)*

    Rhythmic Weight Shift (RWS)*

    Unilateral Stance (US)
    • The SOT, MCT and ADT comprise the core battery of tests recognized as Computerized Dynamic Posturography (CDP), considered the highest standard available for diagnosing the functional impairments underlying balance disorders.
      *Available on the SMART EquiTest® only.

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    Optional Capabilities

    With the optional long (18" x 60") static forceplate, the EquiTest can provide the additional functional assessment and retraining capabilities as included on the Balance Master®.

    The Head Shake-Sensory Organization Test (HS-SOT) can be added to the EquiTest for objective identification of abnormalities in the patient's use of vestibular inputs for balance during active head movements.

    EMG recordings are integral to the NeuroCom Postural Evoked Response test (PER), which analyzes the automatic responses of a patient's gastrocnemius and tibialis muscles to an unexpected external balance perturbation.

    Objective quantification of VOR impairment is available with the addition of the optional inVision™ package, which includes the Dynamic Visual Acuity (DVA) and Gaze Stabilization Test (GST) protocols.

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