ActiLife 5 -User’s Manual Document No. PUB10DOC10 Revision: H Revision Date: 4/8/2011 Prepared By: ActiGraph R&D and Software Departments 1|Page 15 W. Main St. Pensacola, FL 32502 tel 850.
Change Page About the change page table The following table describes the changes that have been made to this document since its original baseline. This table shall be maintained as long as this document is active. Revision A B C D E F G H Date of Approval Brief Description of Change Complete Initial version Several major modifications • Made USB 2.
Contents General .................................................................................................................................................................................... 9 Trademarks ............................................................................................................................................................................. 9 System Requirements .........................................................................................................
Licensing ............................................................................................................................................................................ 31 Activation over the Internet ......................................................................................................................................... 31 Activation without an Internet Connection ..................................................................................................................
About ActiLife ................................................................................................................................................................ 42 Device Initialization and Download ...................................................................................................................................... 43 Device .........................................................................................................................................................
Dataset Analysis Overview .................................................................................................................................................... 60 Wear Time Validation ........................................................................................................................................................... 60 What is a dataset and what are the limitations? ..........................................................................................................
Sadeh Algorithm Summary ........................................................................................................................................... 76 Sleep Score Information.................................................................................................................................................... 76 ActoGram View ............................................................................................................................................................
.dat file examples .......................................................................................................................................................... 90 8|Page 15 W. Main St. Pensacola, FL 32502 tel 850.
General All screenshots herein are referencing ActiLife versions 5.0 and higher. © 2011 ActiGraph. All Rights Reserved. This document is copyrighted by ActiGraph, with all rights reserved. Trademarks Windows and Excel are registered trademarks of the Microsoft Corporation. Adobe and Reader are registered trademarks of Adobe Systems Incorporated. Pentium is a registered trademark of the Intel Corporation or its subsidiaries.
Important Information and Symbols Type B Applied Part. This symbol means that we are compliant with IEC (International Electrotechnical Commission) standards for "Type B Applied Part" - meaning that we comply with requirements for protection against electrical shock. More details available at: http://content.yudu.com/Library/A1l2bv/APracticalGuideto606/resources/8.htm CAUTION: Do not simultaneously charge and wear the device. The end user should not be in the patient vicinity when being charged 1 Part 15.
Introduction ActiLife 5 analysis software package supports the GT1M, GT3X, GT3X-plus, ActiSleep Monitor (ASM), and ActiTrainer activity monitors. The program provides a means to configure these activity monitors (initialize) as well as download and analyze the data collected by the devices. Wearing the Device All ActiGraph activity monitors are designed to monitor human activity and record energy expenditure (calories spent during normal activity, METs, everyday activity, and exercise).
assessment. The ActiTrainer may be worn on the arm using a neoprene armband; however, energy expenditure calculations will not be as accurate at this location. The ActiTrainers manufactured after July 1, 2009 have a 3 axis accelerometer as do the GT3X series and ASM Actigraphs. The ActiTrainer memory has also been expanded to 4 MB, four times storage capacity of the earlier model (see memory matrix on page 10). The GT3Xs, ActiTrainers with 3 axis accelerometers and the ASM have an Inclinometer feature.
Product Specifications and Functionality Epochs and Data Storage Data is stored on ActiGraph products in one of two ways: either post-filtered and accumulated or raw. Post Filtered/Accumulated Post-filtered and accumulated data is typically stored in time buckets referred to as “Epochs.” On ActiGraph devices, “Epochs” are whole-second numbers (e.g., 1s, 5s, 60s, 120s, etc.).
GT3X include a combination of Axis 1 and Axis 2 or Axis 1, Axis2, and Axis 3. GT3X+ devices collect data from all three axes regardless of configuration. Error! Reference source not found. illustrates each device’s orientation while Table 8 in Memory Size and Data Storage defines which devices support multi axis data collection.
Steps Step counts are accumulated on a per-epoch basis and are based on accelerometer data collected on Axis 1 (the vertical axis). An algorithm present in the device firmware filters out the accelerometer’s baseline noise level to help accurately accumulate the steps-per-epoch. Inclinometer The inclinometer feature can help users identify the orientation of the device and, more importantly, when the device itself was taken off.
Lux Level Interpretation Comparison 1 Twilight 5 Minimal street light 10 Sunset 50 Family living room 80 Hallway 100 Very dark overcast day 320-500 Office lighting 400 Sunrise/sunset 1,000 Overcast day 10,000-25,000 Full daylight 32,000-130,000 Direct sunlight Table 2 – Lux Level Interpretation Estimates Low Frequency Extension The Low Frequency Extension (LFE) option, though not a mode or channel, is another data collection option during device initialization and, for the GT3X+, during post-processing.
Unlike other ActiGraph products (GT3X, ASM, or ActiTrainer), the GT3X+ does not filter or accumulate data into epochs. Raw data is collected at the selected sample rate and is post-processed in the ActiLife5 software. Because the GT3X+ collects data from all sensors at all times, users can generate native ActiLife *.agd files containing any desired combination of parametric data at a later time.
Each device uses a slightly different Amp hour (Ah) battery and battery life (Days): ASM & GT3X+: 150 mAH 8 Days* GT1M: 330 mAH 15 Days GT3X: 420 mAH 21 Days* ActiTrainer: 400 mAH 8 Days* *The battery life is affected by number axis turned on except for the GT3X+, which is impacted by the user’s selected data sample rate. Figure 5 shows the battery life profile for all ActiGraph devices. Table 3, Table 4, and Table 5 show the GT3X+ battery life estimates based on sample rate and usage profile.
Figure 5 – Battery Life 3 Profiles Note: If a computer is not available or if multiple devices need to be recharged, a self-powered USB hub can be used. IMPORTANT: ActiGraph devices do not come fully charged from the manufacturer. It is recommended that the units be charged fully before their initial use. 3“Profile” for all devices assumes a 67% active duty cycle (actively collecting data 67% of the time and in Low Power Mode (LPM) 33% of the time).
Sample Rate (Hz) Battery Life (Days) Memory Limit (Days) 30 19.68 21.35 40 17.98 16.01 50 16.10 12.81 60 13.75 10.68 70 13.79 9.15 80 12.92 8.01 90 10.80 7.12 100 10.56 6.41 Table 3 – GT3X+ battery life based on 16 Hrs Active, 8 Hrs sleep. Sample Rate (Hz) Battery Life (Days) Memory Limit (Days) 30 14.63 21.35 40 13.38 16.01 50 12.08 12.81 60 10.19 10.68 70 10.04 9.15 80 9.38 8.01 90 7.94 7.12 100 7.81 6.
Sample Rate (Hz) Active Recording Time (Days) Memory Limit (Days) 30 14.06 21.35 40 12.84 16.01 50 11.50 12.81 60 9.82 10.68 70 9.85 9.15 80 9.23 8.01 90 7.71 7.12 100 7.54 6.41 Table 5 – Active Mode Battery Life after a 10 day Delay Mode period. Low Voltage Mode (HALT) ActiGraph devices enter a “Low Voltage Mode” (or HALT) state when the battery discharges to 3.1V during normal operation.
Recharging and LED Decoding Recharging is automatic and is accomplished by connecting the device to a standard USB port. Charging time will depend on the battery life, but typically will not exceed four hours for a fully depleted battery. Once the battery is completely charged (max voltage of approximately 4.18V), the LED light will remain illuminated. If the battery voltage drops below 3.
ActiGraph GT1M/ASM/GT3X Connected to PC 1 Flash 2 Flashes Steady On Li-Ion Battery is Charging Li-Ion Battery is Faulty Battery Charged ActiGraph GT1M/ASM/GT3X Not Connected to PC Not Flashing (LED Off) Actively collecting data (“Flash Mode” Disabled) or dead battery - Delay before start mode (the LED always flashes prior to starting data collection) - Actively taking data ("Flash Mode" Enabled – not recommended) Low Battery (use ActiLife Lifestyle software to check for remaining battery life) The 2 Fla
Memory Size and Data Storage All ActiGraph devices contain flash based, non-volatile memory. All data is retained in spite of complete power loss due to battery drain. Table 8 shows the memory capacity for all ActiGraph products.
Table 9 – GT1M Memory Capacity Table 10 – GT3X (4MB) Memory Storage Matrix 25 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
Table 11 – GT3XE (16MB) Memory Storage Matrix 26 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
Table 12 – ActiSleep Monitor (ASM) (4MB) Memory Storage Matrix 27 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
Table 13 - ActiTrainer (2-Axis, 1MB) Memory Storage Matrix 28 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
Table 14– ActiTrainer (3-Axis, 4MB) Memory Storage Matrix 29 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
Getting Started: Downloading and Installing Download ActiLife5 from http://www.theactigraph.com/actilife to a known location. Double-click the icon to start the installer. After running the ActiLife5 installer, follow the installation instructions in the on-screen prompts. Note that you will be given an option to leave older versions of ActiLife installed. See “Older Versions” section for details about leaving an older version of ActiLife installed.
Figure 8 – Prompt during Installation to Leave Older Version Licensing ActiLife software is a licensed program and requires that an authorization key be obtained before the software can be used. If you have not purchased an ActiLife license, you may do so by visiting our store at www.theactigraph.com/store. If you have misplaced your license number, contact ActiGraph sales support at support@theactigraph.com in order to proceed.
Figure 10 – ActiLife Registration Confirmation Activation without an Internet Connection For users without an internet connection, ActiLife can be activated by contacting our technical support staff either via email (support@theactigraph.com) or over the phone (1-877-497-6996 option 1). Similar to the Internet activation, enter in ActiLife’s serial number in the first box that appears after launching the program. After clicking “Continue,” a screen similar to Figure 11 will appear.
ActiLife 5 Tour ActiLife 5 contains a quick tour package highlighting the major changes and improvements in the program. This tour starts automatically when the program is first opened, and we highly recommend spending a few minutes taking the tour. Figure 12 – ActiLife Tour Screen To replay the tour at any time, select the ‘Help’ tab in the menu bar and then select ‘ActiLife Tour’ as shown in Figure 13.
ActiLife Main Menu The ActiLife main menu contains four menu options to help users interface with any ActiGraph product. ActiLife5 promotes backward compatibility with all of ActiGraph’s products. The menu options available in ActiLife are meant to help improve our users’ experiences and provide for the multitude of needs with regards to data processing. File Menu The file menu in ActiLife contains options related to file manipulation, AGD file analysis, and template loading and editing.
Important: AGD file formats must be used in order to perform Wear Time Validation, Data Scoring, Sleep Scoring, or Graphing in ActiLife5 Figure 15 – ActiLife Import/Export Menu Option Converting to a Data Table vs. standard .CSV A data table *.csv file contains separate columns with corresponding headers for each data type collected by the device and also includes the Vector Magnitude sum of each axis if data is collected for all three axes. A standard *.
Figure 16 – Re-integration Option AGD File Viewer The AGD File Viewer can be accessed from the File menu, by clicking “finished downloading” from the Devices grid after a download, or by double-clicking on an *.agd file from within Windows Explorer. Using the AGD viewer, users can instantly view the data they’ve just downloaded. The AGD viewer provides a breakdown of activity levels (according to the stored cut points in ActiLife).
Figure 17 – AGD File Viewer Load Template The ‘Load Template’ option allows users to browse and locate an ActiLife template file (*.agt) which forces ActiLife to pre-defined initialization and/or download parameters to ensure consistency among all sites. For details on using the template editor, see Building and Using a Template.
Remove Template The ‘Remove Template’ option simply disables any active template that ActiLife is using. The current template information as shown in Figure 18 will disappear after using this option. For more information about the template feature, see Building and Using a Template. Template Editor The template editor loads the template editor form which can be used to create new or modify existing templates for use with all versions of ActiLife. For more information, see Building and Using a Template.
the device is fully erased. The “Update Firmware on Initialization” option allows the user to disable this feature. However, in order to guarantee that all devices remain up to date, this feature is permanently checked and enabled and cannot be unchecked. In order to disable this feature, contact ActiGraph support at support@theactigraph.com. It should be noted that ActiLife automatically downloads the latest version of firmware (for all ActiGraph devices) each time the program loads.
Compress GT3X+ Files This option will apply maximum file compression to *.gt3x files when they are downloaded from GT3X+ devices. This compression can greatly reduce the file size of the *.gt3x zip files, but can double the post-processing time (i.e., the time it takes to create an *.agd file from a *.gt3x file). For details on post-processing, see Uncompressing *.gt3x Files.
Communication Menu Figure 20 – Communication Menu Show Download Folder The Show Download Folder simply opens ActiLife’s default download folder. This option is useful for locating files downloaded from devices in the Devices tab. Show CSV Folder The Show CSV Folder opens the default CSV conversion/download folder Update Firmware from File Within the “Advanced” menu, the Update Firmware from File option allows users to manually upgrade (or downgrade) device firmware.
Figure 21 – Deactivating ActiLife Prior to deactivating, be sure to click “View Activation Details.” Write down the Registered Serial Number shown. This number will be required to reactivate ActiLife5 Click “Deactivate” to complete the deactivation. About ActiLife The About ActiLife option displays information about the ActiLife program including a link to ActiGraph’s corporate website, copyright information, and the software version number. 42 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
Device Initialization and Download Once ActiLife is properly installed and licensed, users will be presented with the “Devices” screen similar to the one shown in Figure 22. ActiLife5 is capable of initializing or downloading multiple devices simultaneously. Devices can be connected either before or after ActiLife5 is launched. Figure 22 – Opening Screen 43 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
As shown in Figure 23, device status information will appear in the “Devices” tab as devices are connected to the computer. ActiLife5 can handle up to 127 devices at one time, although computer limitations may decrease that number. Device status information is provided in the Devices grid. Device The “Device” column describes the device connected to the PC. This could be any of the products offered by ActiGraph. Mixing devices is allowed.
Stop Date & Time This column displays the stop date and time programmed on the device. This is set during initialization and is used to align the file lengths for multiple devices during large longitudinal studies. Filter The “Filter” column displays the on-board accelerometer filter setting for initialized devices (Normal or Low-FrequencyExtension). See Setting Device Parameters for details. This column is not applicable for GT3X+ devices as no on-board filtering is performed.
The data in the Devices grid can be copied and pasted into any text editor by clicking on a cell, pressing and holding the Shift key and clicking on another cell to select a group of cells then pressing “Ctrl+C” to copy the data to the PC clipboard. This can be useful for studies in which device data must be logged. Figure 23 – Devices Screen Showing Multiple Actigraphs IMPORTANT: Device drivers must load the first time a device is connected to a USB port.
Select the tab for the type of device you wish to configure and set the specific data collection parameters. Filter information can also be set at the time of initialization. For more details about the low frequency extension, see Low Frequency Extension. All ActiGraph devices of the same type that are initialized simultaneously will be initialized with the same data collection parameters. Start Date and Time and Stop Date and Time apply to all devices and cannot be unique for each device group.
Subject Info The Subject Name screen allows users to enter a unique subject name for the attached devices. This data will be stored on the device and will be available at download and can help with file naming when data is downloaded from the device. To add or change a name, highlight the subject name cell. Note that ActiTrainer devices (devices with serial numbers beginning with ‘PUL’) will store more information.
• • • • Race – Subject race: Asian/Pacific Islander, Black/African American, White/Caucasian, Latino/Hispanic, Other Limb – The limb on which the device is worn: Wrist, Waist, Ankle, Upper Arm Side – The side of the body that the patient is wearing the device. Left or Right Dominance – Dominant or Non-Dominant. This allows the researcher to store whether or not the wear location is on the subject’s dominant or non-dominant side. This data is stored in the info.txt file as part of the *.
To select a different download location, select “Select Download Location…” and browse to the desired download directory. To make this directory the default download directory, check the box below the download location in the Download Options prompt. This can also be changed by selecting the directory from the “Edit->Options->Directories” setting in the program’s main menu.
Dominance The “Dominance” option allows users to specify whether the wear location side was the subject’s dominant or nondominant side. Figure 27 – Biometric and User Information during Download Custom Fields When custom fields are collected as part of a template (see Building and Using a Template for more details), those custom fields will appear in the metadata grid as shown in Figure 28.
ActiLife can automatically create *.csv files on download by setting this in the edit menu. Note that this only works for GT3X+ devices if an *.agd file is created during the download process. Downloading GT3X+ Devices Downloading data from GT3X+ devices is very similar to download from other devices. It is important to understand the difference in the file handling for this device.
To view the *.gt3x files, select “Communication->Show Download Folder” from the main menu in ActiLife5. Files will appear in this folder as shown in Figure 30. Figure 30 – *.gt3x files Uncompressing *.gt3x Files Binary *.gt3x files can be uncompressed to *agd (for use in ActiLife), *csv, or *.dat file format. Users have the option of creating *.agd files during the download process by checking “Create AGD File” from within the download prompt (see Figure 29).
Figure 31 – GT3X+ Export Tool The GT3X+ export tool can also be accessed by clicking “finished downloading” hyperlink from the devices grid after downloading. Figure 32 – Finished Downloading Hyperlink in Devices Grid Another option under the ‘File’ tab is the reintegrate file. This allows users to convert data collected in smaller epoch files into larger epoch datasets (e.g., a 1 second epoch dataset can be converted to a 60 second epoch dataset). Datasets cannot be down converted (e.g., 60s to 1s).
Figure 33 – “finished downloading…” link in Status column after download completed Building and Using a Template Templates were created in ActiLife version 5.5.0 to assist customers who deploy ActiGraph devices using remote distribution centers or who need to ensure consistency in the initialization and/or download process when multiple people (e.g., lab assistants) are distributing devices to patients.
Figure 34 – Initialization/Download Template Editor Template Parameters Initialization Template Options Use the initialization options on the left side of the template editor to force template users to use specific settings during the initialization process. Template Name (required) The name of the template that will appear at the top of ActiLife once the template is loaded. An illustration is shown in Figure 18. This is a required field.
and use the time selection box to set the start time. Use “Any” in the Day selection box to give the user the flexibility to choose which day the device should start collecting data but the rigidity to force a start time for data collection. If the template start time has already passed, ActiLife will automatically default to the next day with the same start time. For example, suppose the template is set to force users to start collecting data at “+0 day(s) at: 3:00pm.
Figure 35 – Custom Fields as they appear after clicking “Download” Download Settings Use the “Download Settings” in the download section of the template builder to force template users to utilize a specific file download location and/or a specific file naming convention. By checking the “Force Download Location” and selecting a directory, template users will be forced to use the specific location.
Note: If the selected directory does not exist, ActiLife will attempt to create the directory (e.g., “C:\PatientDownloads”). If the user does not have administrative permissions or otherwise cannot create the directory, this feature will automatically disable itself, thus allowing the user to select the directory of their choice. To force a file naming convention for template users, check the “Force Naming Convention” option and select the desired naming convention.
When a template is loaded in ActiLife, the template will remain present even after closing and re-opening the software. This ensures that the template settings remain unchanged even when a user’s computer is shut down and restarted. To remove a template, click “Remove Template” from the file menu.
Figure 37 – Wear Time Validation Screen What is a dataset and what are the limitations? The Wear Time Validation tab performs screening on datasets. A single dataset represents a single device download and may contain multiple days of data. Datasets are specific to a device and a user. If a user wears a device for five days, recharges the device and wears it again for seven days, that user’s dataset will contain 12 days’ worth of data. At this time, datasets cannot be concatenated.
Stage 1: Qualification of valid hourly activity data. Stage 1 qualifies hours as either valid or invalid based on minimum minute-by-minute requirements Stage 2: Qualification of valid days within a dataset. Stage 2 qualifies days as valid or invalid based on the number of valid hours in a day determined from Stage 1 Stage3: Qualification of an entire dataset. Stage 3 qualifies an entire dataset as either valid or invalid (turns it red) based on the number of valid days as determined in Stage 2.
Example 2: - One-Minute Epoch Dataset - Minimum non-zero epochs per hour required: 15% - Ignore counts below: 0 (i.e., any value is valid) - Ignore counts above: 0 (i.e., any value is valid) - Beginning at 1:00pm and going until 1:59pm on a given day, 4 epochs (4 minutes) contain counts that are between 0 and 100 counts - Between that same time span, the remaining epochs (56 minutes) contain epochs that are 0. - This hour would be considered INVALID because only 6.
After the Wear Time Validation filter has been executed (following Stage 3), individual days that are flagged as valid or invalid can be viewed by selecting the “Details” button corresponding to the dataset. Figure 40 – Details View Shows Epoch-By-Epoch Validation Details about which days are considered “valid” can be seen in the details view. An example is shown in Figure 41. “Valid” days (those that will be used in further analysis) are checked as “Use.
Important: “Weekend Days” are considered Saturday and Sunday in ActiLife5 while “Weekdays” are considered Monday thru Friday. Dataset Qualifier Example: - Minimum number of days to wear: 6 - Minimum number of weekdays to wear: 3 - Minimum number of weekend days to wear: 3 - Note that “weekend days” refer to the total weekend days available in the dataset; not the weekend days per week. In this example, the dataset is 14 days long and covers two weekends or four possible weekend days.
Following criteria selection (Stages 1-3), the “Get Results” button (Figure 43) will analyze all datasets and return the results. Datasets with a red background are considered invalid. Datasets with red backgrounds (see Figure 37) are considered invalid. That is, they do not meet the minimum dataset criteria defined in the “Valid Dataset” section of the Wear Time Validation tool. Datasets can contain invalid days and hours even when the dataset itself is valid.
Data Scoring Data Scoring in ActiLife allows users to analyze the details of their dataset(s) by examining Energy Expenditure, Activity Cut Points, Activity Bouts, and Heart Rate Energy Expenditure. In addition, energy expenditure in children can also be analyzed using Children’s MET levels. Date and Time Filters Date and time filtering allows users to isolate the data scoring to specific dates or times of interest. Multiple filters can be added simultaneously to specifically target certain days or times.
Figure 45 – Removing Date and Time Filters Energy Expenditure Energy expenditure in kilo-calories (kcals) can be calculated quickly and easily by adding datasets to the “Data Scoring” tab, entering the subject’s weight (in lbs.), selecting “Worn on Wrist” (if applicable), and clicking “Calculate Energy Expenditure.” Each dataset kcal value will be summed and reported alongside the corresponding dataset. A summed total will appear at the bottom of the grid for the entire dataset group.
• The Freedson Equation. Developed by Dr. Patty Freedson in 1997, this equation is only accurate above 1951 counts for adults. 𝑘𝑐𝑎𝑙𝑠 = 𝑆𝑐𝑎𝑙𝑒 × (0.00094 × 𝐶𝑜𝑢𝑛𝑡𝑠 + (0.1346 × 𝑀𝑎𝑠𝑠 − 7.37418)) [𝑓𝑜𝑟 𝐶𝑜𝑢𝑛𝑡𝑠 ≥ (1952 × 𝑆𝑐𝑎𝑙𝑒)] where • • 𝑆𝑐𝑎𝑙𝑒 = (𝐸𝑝𝑜𝑐ℎ 𝑃𝑒𝑟𝑖𝑜𝑑 𝑖𝑛 𝑆𝑒𝑐𝑜𝑛𝑑𝑠 ÷ 60) Combination (Work Energy and Freedson).
Default Cut Points Range Sedentary 0 – 100 Counts Lifestyle 101 – 759 Counts Light 760 – 1952 Counts Moderate 1953 – 5724 Counts Vigorous 5725 – 9498 Counts Very Vigorous 9499 and higher Counts Table 16 – Default Cut Points Bouts Bouts are defined as periods of activity bound by a minimum time and a range of activity levels. ActiLife5 allows users to detect the number and length of such bouts in multiple datasets.
ADL Heart Rate: Average Daily Living Heart Rate. This is the average base (resting) heart rate of all ADL qualified epochs in the dataset. In order to qualify as ADL heart rate, an epoch must contain heart rate data below 79 beats per minute and one-minute activity data above 100 counts per epoch. Avg Active Heart Rate: The average active heart rate in a given dataset.
Sleep Scoring Sleep scoring can be performed on any dataset to determine sleep efficiency and other parameters that may indicate sleep problems. Any combinations of the various initialization modes are allowed for a given dataset file (activity, dualaxis, steps and heart rate). ActiLife will attempt to re-integrate data collected at epoch intervals less than 60 seconds as all scoring is performed using 60 second epoch cycles.
Figure 47 – Graphing Entering Sleep Times Sleep times (time in or out of bed) can be entered into the Sleep Scoring tool using two different techniques. To key-in sleep times, select the “Add Bed Time” button on the right of the Sleep Scoring tool. Enter the subject’s exact time in bed and time out of bed and click “ok.” The selected time slot will be highlighted in translucent red on the graph.
Sleep periods can also be removed by selecting the sleep period in the list to the right and clicking the “Remove” button below the list. Activity and Lux Scale The “Activity Scale” and “Lux Scale” settings below the sleep graphs adjust the maximum scale shown for Activity and Lux counts on the sleep graphs. Changing the value scales all of the graphs simultaneously.
Figure 50 – Lux Data Overlay on Sleep Graphs Figure 51 – Lux Thresholds Sleep Scoring Algorithms The sleep scoring tool uses one of two algorithms (Sadeh 7or Cole-Kripke 8) to determine minute-by-minute asleep/awake status. These algorithms are selectable by the user and can be changed instantly for comparison purposes. The algorithms are described here. 7 “Automatic Sleep/Wake Identification From Wrist Activity”, Roger J. Cole, Daniel F.
Cole-Kripke Algorithm The Cole-Kripke algorithm is considered appropriate for use with adult populations because it was developed using subjects ranging from 35 to 65 years of age. Roger J. Cole and Daniel F. Kripke adapted a scoring method developed by J. B. Webster with an experimental wrist actigraph for the AMI actigraph in 1992. It was developed using 10, 30 and 60 epochs, with the highest level of accuracy resulting from data collected at10 second epoch periods.
ActoGram View The ActoGram view option provides the user with the ability to quickly discern circadian patterns in sleep behavior by scaling and compressing the sleep graphs. Enable the ActoGram view by choosing the radio button corresponding to this view at the bottom of the Sleep Scoring tool. Figure 52 illustrates an ActoGram view. Figure 52 – ActoGram View Saving the ActoGram The ActoGram can be saved as a sharable image by clicking “Save ActoGram at the bottom of the graph.
Save Sleep Report Sleep scores produced in the Sleep Scoring tab can be exported to either a CSV or PDF file by clicking the “Save Sleep Report” option at the bottom right-hand side of the screen. Select the desired output from the options dialog that appears. Browse to the export location, type a file name, and click “Save” to begin the export. Figure 53 – Lux Thresholds 78 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
Graphing ActiLife5’s graphing tab allows users to quickly see graphs of each day in a given dataset. Click “Select Dataset” and browse to an .agd file containing data. The graphs will load vertically and will be ordered from latest to most recent date, ascending downward. Zooming is accomplished by dragging the mouse over the area of interest as shown in Figure 47. Graphs can be reset by clicking the small icon in the bottom left-hand corner of the graph which is also illustrated in Figure 47.
Parameter graph colors can be selected by clicking the palette icon to the right of the variable of interest and choosing the desired color. The graph will immediately update with the new color. Figure 55 – Graph Legends Axes Scaling Unless specified, each day shown in the graphing area is scaled individually according to the maximum values collected on that day. By checking the “Equal Scales” option on the right, all activity graphs will be scaled evenly according to the number in the scale box.
Data Comparison The Data Comparison tool allows users to compare ambulatory activity data collected during private studies with other public activity datasets that were generated from ActiGraph devices. ActiLife version 5.5.0 introduces this feature with the option to compare data against one public dataset – the 2003-2004 and 2005-2006 National Health And Nutrition Examination Survey (NHANES) data collected by the Center for Disease Control and Prevention.
Figure 56 – Data Comparison Subject Form If ActiLife detects that there are missing metadata within your subject data (as is the case in Figure 56), a hyperlink will appear in the “Your Subject Data” area near the top of the Data Comparison tool as shown in Figure 57. Click the hyperlink to instantly launch the subject grid as shown in Figure 56 to quickly make corrections. Note that comparisons can still be made on the metadata that is present, even if a subject’s metadata is only partially populated.
Comparing only Validated Data To exclude “invalid hours” as determined by the Wear Time Validation tool, check the “use Validated Data if Available” option in the Your Subject Data area. Doing so will exclude invalid whole hours that have been flagged in your datasets. For more details, see Wear Time Validation. Filtering Data Data comparisons are not limited to the entire scope of the datasets for NHANES and/or the user’s subject data.
Comparison Graphs The comparison graphs can be enlarged by double-clicking on them. To return to the normal view, double-click on the chart again. As shown in Figure 59, users can also hover over the chart areas to see details about the comparison numbers. Figure 59 – Data Comparison Graphs Charts can be enabled or disabled by checking the graph selection boxes at the top of the Data Comparison tool.
Preventative Inspection, Maintenance, and Cleaning All of ActiGraph’s devices are manufactured in such a way that preventative maintenance is typically not required. This required. This includes device calibration. However, in order to ensure proper operation and to minimize loss of data all devices should be visually inspected prior to each deployment. This is especially true for water resistant devices, in which any o-ring/gasket should be inspected to ensure no cracks are present.
Customer is responsible for all shipping and handling costs. ActiGraph is not responsible for devices damaged due to poor packaging, defaced packaging, or lost shipments. Delivery times vary; please allow 2-3 weeks for return of the Actigraph. ANY ADDITIONAL QUESTIONS OR PROBLEMS, PLEASE CALL 850.332.7900 OR EMAIL: SUPPORT@THEACTIGRAPH.COM Appendix A – File Types in ActiLife5 *.gt3x File Format GT3X+ devices produce an interim compressed file with file extension *.gt3x.
*.agd files are created in ActiLife immediately when data from a GT1M, GT3X, ActiTrainer, or ASM device is downloaded through the “Devices” tab. These *.agd files typically contain post-filtered and accumulated data as this is the only type of data that ActiLife can properly handle. The rows in the database represent whole-number epoch summations (1s, 5s, 10s, 30s, 60s, etc.).
stores all of the activity (1 to 3 axis), pedometer, Inclinometer, and/or heart rate data in ASCII format. This file also contains the Serial Number, Start Time, Start Date, Epoch Period, Download Time, Download Date, Current Memory Address Pointer, Current Battery Voltage, Mode and First Start Time (used to build the DAT file) as part of its ten (10) line header information. The file can be viewed with any standard text editor such as MS Notepad.
Table 17 – DAT File Modes 89 | P a g e 15 W. Main St. Pensacola, FL 32502 tel 850.
The “DAT” file data is interleaved in the following priority order based on the Mode value. Device GT1M/GT3X/ASM ActiTrainer .DAT file data priority (order of appearance) 1) Activity 2) Steps 1) Activity 2) Steps 3) Heart Rate 4) Workout Activity (0 unless device is in workout mode) 5) Workout Steps (0 unless device is in workout mode) Table 18 – Order of data appearance in DAT file Note that the ActiTrainer records workout data in a separate memory slot.
ActiTrainer .dat file with activity only ------------ Data File Created By ActiTrainer ActiLife v3.3.1 Firmware v5.2.0 ----------Serial Number: PUL1B30060050 Start Time 23:50:00 Start Date 12/31/2007 Epoch Period (hh:mm:ss) 00:01:00 Download Time 11:49:07 Download Date 4/14/2008 Current Memory Address: 618 Current Battery Voltage: 3.
- WA1 represents the Workout Activity Data from 23:50:00 to 23:51:00. WS1 represents Workout Step Count (Pedo) from 23:50:00 to 23:51:00. A2 represents Activity Data from 23:51:00 to 23:52:00. S2 represents Step Count (Pedo) from 23:51:00 to 23:52:00. WA2 represents Workout Activity Data from 23:51:00 to 23:52:00. WS2 represents Workout Step Count (Pedo) from 23:51:00 to 23:52:00. A3 represents Activity Data from 23:52:00 to 23:53:00. This cycle repeats for the entire length of the file.
.dat file with dual axis activity, step count and heart rate data ------------ Data File Created By ActiTrainer ActiLife v3.3.1 Firmware v5.2.0 ----------Serial Number: PUL1B30060050 Start Time 23:50:00 Start Date 12/31/2007 Epoch Period (hh:mm:ss) 00:00:30 Download Time 13:24:27 Download Date 4/14/2008 Current Memory Address: 1390 Current Battery Voltage: 3.
Each epoch is 15 seconds long and contains 1 activity reading. Note that the GT1M has no workout information. A1, A2, A3, A4 and A5 all represent a separate epoch, each 15 seconds apart. .dat file with activity and step data ------------ Data File Created By ActiGraph GT1M ActiLife v3.2.12 Firmware v3.0.
