The wGT3X-BT is a body worn device that measures and records physical movement associated with daily activity and sleep. The wGT3X-BT is intended for use in applications where quantifiable measurement and storage of physical movement is desired.
What You’ll Need wGT3X-BT ActiLife software (version 6.11.5 or higher) Triangle Tool USB Cables Wrist Band Waist Belt Heart Rate Monitor (Optional) USB Charging Hub and Cables (Optional) actigraphcorp.com...
Note: The ActiLife full version and ActiLife Lite can both be used to initialize and download data from the wGT3X-BT. However, the ActiLife full version is required to view and/or process the collected data.
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Getting Started (Continued) Charging multiple devices An ActiGraph approved USB charging hub can be used to charge up to 7 devices simultaneously. Multiple hubs can be used to further increase charging capacity. Connect hub to power supply and PC using supplied cables.
This section describes how to configure the wGT3X-BT and begin collecting data. Open the ActiLife software. Connect the wGT3X-BT to the PC using the USB cable. The monitor(s) will appear in the grid under the ‘Devices’ tab. Select ‘Initialize’. A submenu will open to display several initialization options.
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Setup & Initialization (Continued) Device Time Set device to local computer time or atomic time. Sample Rate Select the device sampling rate ranging from 30 to 100 Hz. The sample rate is the number of times per second that the activity monitor will record data. Note that higher sampling rates will result in higher data fidelity, but will reduce the device storage capacity and battery life.
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Select ‘Initialize 1 Device’ . A progress bar in the devices grid will indicate when the initialization process is completed. After initialization is complete, unplug the wGT3X-BT and replace the USB cap by turning clockwise with the triangle tool. Be careful not to overtighten.
Wearing the wGT3X-BT The wGT3X-BT is typically worn at the waist or on the non-dominant wrist using one of our compatible belts or wrist straps. The appropriate wear location is dependent on specific research objectives and will be outlined in the study protocol.
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Unsnap the heart rate transmitter from the chest strap, position the transmitter in the center of the sternum, and snap back into place. Adjust the strap so that it is secure across the breast bone. The wGT3X-BT will automatically begin collecting heart rate information when in range of the chest strap.
Downloading the Data Open the ActiLife software. Connect the wGT3X-BT to the PC using the USB cable. The monitor will appear in the grid under the ‘Devices’ tab. Verify the box in front of the device is checked and select ‘Download’ from the taskbar menu.
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Select to include positional data (standing, sitting, or lying down and when the device has been removed) based on device orientation in the AGD file. Note: The wGT3X-BT must be worn at the hip or attached to the upper thigh for accurate inclinometer readings.
Storage In order to maximize battery life, ActiGraph recommends devices be stored in a partially charged state (40 – 60% battery capacity is ideal) in low ambient temperatures. The device should never be stored lower than -10...
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