Physical Activity Measurement | ActiGraph monitors are the most reliable and accurate means of measuring activity levels and energy expenditure outside of a clinical setting. A recently published independent accelerometer evaluation concluded that the ActiGraph is the only commercially available device of its kind that shows positive correlation with the doubly labeled water (DLW) technique of measuring energy expenditure. | | | | | GT3X ActiGraph |  | The triaxial GT3X monitor measures human activity on three axes, steps taken and contains an inclinometer to provide positional data. The GT3X features 16MB of nonvolatile storage and an extended 20-day battery life. The GT3X is fully backwards compatible with the GT1M, meaning the devices can be used together, and utilizes the same software and accessories as the previous model. | | | Printable Product Information | | | ActiTrainer ActiGraph |  | The ActiTrainer features the same triaxial accelerometer as the GT3X combined with heart rate monitoring capability, an ambient light sensor, and an OLED display window. When worn with the included Polar Wearlink T31, heart rate data is wirelessly transmitted to the ActiTrainer, where it can be viewed in real time and is stored alongside activity data for analysis. The light sensor allows users to distinguish between indoor and outdoor activity, and the OLED window provides t the ability to monitor performance parameters such as caloric expenditure, steps taken, pace, distance and intensity level in real time. | | | Printable Product Information | | | | GT1M ActiGraph | | The GT1M ActiGraph is the most widely used device of its kind in the scientific community. The GT1M is a sturdy and compact dual-axis accelerometer that measures and records activity counts and steps taken. This data is then used to accurately determine individual activity levels, energy expenditure and more. The GT1M features a direct USB connection, a rechargeable battery, 1 MB of non-volatile flash memory and requires no field calibration. | | | Printable Product Information | ActiLife Software |  | The ActiLife desktop analysis software program is compatible with the GT1M, the GT3X, ActiSleep and the ActiTrainer ActiGraphs. ActiLife allows the user to initialize the ActiGraph in a variety of different operating modes and select epochs ranging from 30 times per second (raw mode) to 4 minutes. The collected data is stored in ASCII format for simple access and compatibility with other analysis programs (e.g. SPSS & SAS). ActiLife also contains several basic macros which use the ASCII data to generate summary files, daily activity graphs, caloric files, data tables, sleep scores and much more! | | | Printable Product Information |
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