The Actiwatch User Manual Ver 7.2 Oct 2008

Actiwatch - Medical Device Information The Actiwatch is a Class I Medical Device conforming to the essential safety & health requirements and provisions of EC Council Directives 93/42/EEC, Annex I and VII. Manufacturer: CamNtech Ltd Upper Pendrill Court Papworth Everard Cambridgeshire CB23 3UY UK Applicable Standards:

EN60601-1:2001

Medical electrical equipment – General requirements for safety.

EN60601-1-2:2002

Medical electrical equipment – Part 1-2: General requirements for safety – Collateral standard: Electromagnetic compatibility – Requirements and tests.

Group 1 equipment / Class B – (emissions only)

EN60601-1-2:2002

Medical electrical equipment – Part 1-2: General requirements for safety – Collateral standard: Electromagnetic compatibility – Requirements and tests.

Non life supporting equipment (immunity section only) EN60601-1-4:1997

Medical electrical equipment – Part 1-4: General requirements for safety – Collateral standard: General requirements for programmable electrical medical systems.

Waste Electrical & Electronic Equipment (WEEE) The EU requires, under the Waste Electrical and Electronic Equipment Directive 2002/96/EC, that manufacturers and/or distributors of Electronic and/or Electrical Equipment manage and pay for the collection and further handling of WEEE products, as well as provide WEEE-related information to their customers. CamNtech has taken the following approach to complying with this Directive: • • • •

CamNtech has registered with an approved producer compliance scheme (PCS) in accordance with the requirements of the WEEE Directive. CamNtech will provide free recycling for all of its WEEE products when returned. CamNtech WEEE products will be designed with recycling, reuse and waste management as a consideration. CamNtech WEEE products will be labelled or stamped with the WEEE marking in accordance with European Standard EN 50419

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Contents 1 2

Introduction... 6 File Menu... 7 2.1 Loading Files... 7 2.1.1 File types... 7 2.1.2 AWD files ... 7 2.1.3 AWF files... 8 2.1.4 AWF Plot on screen controls ... 9 2.2 Saving Files... 10 2.3 Join files ... 10 2.4 Edit file... 12 2.5 Properties ... 13 2.5.1 Actogram tab... 13

2.5.1.1 2.5.1.2 2.5.1.3 2.5.1.4 2.5.1.5 2.5.1.6

3

4

Default scale...13 Default Days ...13 Default Light start ...13 Default Dark Start ...13 Warn before overwriting during setup ...13 Use Default setup ...14

2.5.2 Reports tab ... 14 2.5.3 Data Path tab ... 14 2.5.4 Default Setup tab... 14 Reader Menu... 15 3.1 Comms ... 15 3.2 Read ... 15 3.3 Write ... 15 3.4 Test Actiwatch ... 15 3.5 Cal Activity ... 16 3.6 Recover data... 16 Actogram Menu ... 17 4.1 File ... 18 4.1.1 Load ... 18 4.1.2 Edit data ... 18 4.1.3 Colours... 19 4.1.4 Print... 19 4.1.5 Printer setup ... 19 4.1.6 Load setup ... 20 4.1.7 Save setup ... 20 4.2 Copy ... 21 4.3 Display ... 22 4.3.1 Redraw ... 22 4.3.2 Length ... 22 4.3.3 Type ... 22

4.3.3.1 4.3.3.2 4.3.3.3

4.4

Single day display ...22 Dual day display ...25 Expanded activity display ...26

4.3.4 Day ... 26 4.3.5 Activity ... 26 4.3.6 Light... 26 4.3.7 Change Epoch ... 26 Options ... 27 4.4.1 Time bars ... 27 4.4.2 Tau Line ... 27

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4.5

4.4.3 Graticule... 28 Graphs ... 29 4.5.1 Average ... 29

4.5.1.1 4.5.1.2 4.5.1.3 4.5.1.4 4.5.1.5

5

4.5.2 Line ... 31 4.5.3 FFT... 31 4.5.4 Periodogram... 32 4.5.5 NPCRA ... 33 4.6 Markers ... 34 4.7 Actogram on screen controls... 35 Sleep Analysis Menu ... 36 5.1 Analysing and scoring sleep data – preparing for sleep analysis ... 36 5.1.1 Setting the Analysis Window period... 37 5.1.2 Setting Bed and Get Up Times ... 37 5.1.3 Setting Sleep Start and Sleep End... 37 5.1.4 Performing the sleep analysis ... 37 5.2 File ... 38 5.2.1 Load file ... 38 5.2.2 Save summary ... 38 5.2.3 Colours... 38 5.2.4 Print... 39 5.3 Copy ... 39 5.3.1 Expanded raw data ... 39 5.3.2 Calculated data... 39 5.4 Summary ... 39 5.4.1 Display summary ... 39

5.4.1.1 5.4.1.2

6

Copy ...29 Display ...30 Select Days...30 Smoothing ...31 Scale...31

File ...40 Copy ...41

5.5 Sensitivity... 41 5.6 Sleep-Wake ... 41 5.7 Markers ... 42 5.8 Sleep Diary... 42 5.9 Sleep Parameters ... 43 Activity Analysis Menu ... 45 6.1 Analysing a file using Activity Analysis ... 45 6.2 File ... 45 6.3 Copy ... 46 6.3.1 Histogram data ... 46 6.3.2 Times and data ... 46 6.3.3 Activity data... 46 6.3.4 Daily activity data ... 46 6.3.5 Examples of copied activity data ... 46 6.4 Activity Analysis on screen controls... 46 6.4.1 Reference time ... 46 6.4.2 Pre reference ... 46 6.4.3 Post reference... 47 6.4.4 Find marker ... 47 6.4.5 Histogram period... 47 6.4.6 Activity display ... 47 6.4.7 Histogram display ... 47

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6.4.8 Autoscale... 47 Nap Analysis Menu ... 48 7.1 File ... 48 7.2 Markers ... 48 7.3 Copy ... 48 7.3.1 Nap details ... 48 7.3.2 Analysis... 49 7.4 Nap analysis on screen controls ... 49 7.4.1 Day ... 49 7.4.2 Scale... 49 7.4.3 Minimum Nap ... 49 7.4.4 Maximum Nap ... 49 7.4.5 Sensitivity ... 49 7.5 Nap Details... 49 7.6 Analysis period ... 50 8 Light Analysis Menu ... 51 8.1 Analysing a light file... 51 8.2 File ... 52 8.2.1 Colours... 52 8.2.2 Print... 52 8.3 Summary ... 52 8.3.1 Copy summary ... 52 8.3.2 Print summary ... 52 8.4 Copy Expanded Stats ... 53 8.5 Cal ... 53 8.6 On screen controls... 54 9 The ActiLight... 55 9.1.1 ActiLight overview ... 55 9.1.2 ActiLight Technical Specification ... 55 9.1.3 Wearing the ActiLight ... 56 9.1.4 Setting up the ActiLight... 56 9.1.5 Downloading data from the ActiLight ... 57 9.1.6 Loading data from the ActiLight ... 57 9.1.7 Changing the ActiLight battery... 58 10 Options Menu ... 59 10.1 Full Menus ... 59 11 Technical Appendix... 60 11.1 Sensor calibration and reproducibility ... 60 11.2 How does the Actiwatch work ... 60 11.2.1 Activity Counts... 60 11.2.2 Epoch ... 62 11.2.3 Activity Score ... 63 11.2.4 Total Activity Score... 63 11.2.5 Mean Activity Score ... 63 11.2.6 Mean Activity Score in Active Periods ... 63 11.3 Sleep scoring algorithm ... 63 11.4 Time keeping... 64 11.5 Sensitivity settings ... 65 11.6 Shock resistance ... 65 11.7 Temperature range ... 65 11.8 Changing the battery (Actiwatch AW4, and AWL)... 65 11.9 Trouble Shooting; ... 67 7

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1

Introduction

The Actiwatch User Manual is designed to be read in conjunction with the ‘Actiwatch Guide to Getting Started’. Both the User Manual and the Guide to Getting Started are supplied on the Actiwatch software CD. The Guide to Getting Started is also supplied in printed form with each copy of Actiwatch software supplied. The Guide to Getting Started contains all the information required to enable the user to install the Actiwatch software and to setup and download an Actiwatch. It also contains an overview of the Actiwatch range and analysis options. The Actiwatch User Manual is a detailed guide to the Actiwatch software and covers the functionality of that software tab by tab.

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2 2.1

File Menu

Loading Files

In order to view or analyse an Actiwatch file, the relevant file has to be loaded. Selecting ‘File’ and then ‘Load’ brings up the following screen:

This shows all of the available files which can be viewed or analysed. The default file path for storage of Actiwatch files is within the Actiwatch Sleep 5/7 folder. For further details on saving Actiwatch files, please see section 2.2 Clicking on the required file and then selecting ‘Open’ or double clicking on the required file will load it into the program for analysis. 2.1.1

File types

There are 2 different types of Actiwatch file; Actiwatch AWD files and Actiwatch AWF files. When loading an Actiwatch file ensure that the correct type of file is selected in the ‘Files of type’ field. 2.1.2

AWD files

Actiwatch data files are saved by default as Actiwatch (.AWD) files. This should not be altered otherwise the files may not be recognised by the Actiwatch software. The only exception to this is if a file has a 2, 5 or 10 second epoch. In this case the user has the option to save these files as AWF files. For full details on AWF files, please see section 2.1.3

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2.1.3

AWF files

When an Actiwatch has been set up with either a 2, 5 or 10 second epoch, it is possible to save the file as either an AWF file or as an AWD file. Full information on AWD files is given in section 2.1.2. AWF files are high resolution activity data files recorded at either a 2, 5 or 10 second epoch. Selecting ‘Open’ and then ‘Files of type – AWF’ will bring up any available AWF files as shown below:

Once an AWF file has been loaded, the main software screen will show a dropdown menu for ‘AWF_plot’ as shown below:

Selecting ‘AWF_plot’ brings up the following screen:

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2.1.4 • • • • • •

AWF Plot on screen controls

The ‘File’ menu allows the user to print the screen shown above The ‘Copy’ menu puts the raw data onto the clipboard for use in a third party program such as Excel ‘Expand window’ allows the user to increase the amount of time viewed i.e. decrease the resolution ‘Reduce window’ allows the user to decrease the amount of time viewed i.e. increase the resolution The scale can be altered using the slider to the left of the screen as shown above It is possible to scroll through the data either using the scroll bar shown at the bottom of the screen or using the mouse to click and drag on the data

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2.2

Saving Files

Clicking on ‘File’ and then ‘Save’ brings up the following screen:

This allows the user to save the file currently loaded with the file name required. 2.3

Join files

It is possible to join two Actiwatch AWD files together. It is important to note that when joining files, the epoch lengths of the 2 files joined must be the same. Ideally the files should also be from the same Actiwatch. To join two files it is necessary to follow the following steps: • Firstly load the earlier of the 2 files to be joined (this must be the file with the earlier date). • Selecting ‘File’ and then ‘Join files brings up the following screen:

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• •

Clicking on ‘Load’ then lists the files available for joining to the previously loaded file. Selecting the tick-box ‘Remove Complete Blank Days’ brings up the following message. When this option is selected, complete blank days are removed and part days are filled with zeros to maintain timing. If this option is selected then the 2 files will be displayed sequentially ignoring the start date of the second file:

•

are compatible, the two files will be joined and the following message displayed:

•

The new file has then been created and named joined.awd

It is important to note that each time a new joined file is created, it is named ‘joined.awd’ and the previous joined file is overwritten. To avoid this it is important to re-name joined files as soon as they are created.

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2.4

Edit file

Selecting ‘File’ and then ‘Edit file’ brings up the following screen:

This allows the user to edit AWD files. The procedure for doing this is as follows: • • •

1. 2. 3. • • •

Select the day/date of the file to be edited Enter the start and end times required (all times are in 24 hour format) Select the format to replace the activity data with. This can be one of three things: Zero Day average for the selected day User enterable fixed value Click on ‘Replace’ to replace the value Edited files are saved as ‘filename (edited).awd’ to differentiate them from the original files The Actogram for the edited file can now be displayed

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2.5

Properties

Selecting ‘File’ and then ‘Properties’ brings up the following screen:

2.5.1

Actogram tab

The Actogram tab allows the user to alter the following parameters: 2.5.1.1

Default scale

This is the default scale used when an Actogram is displayed. The software default value is 5000 which is the maximum allowable value. 2.5.1.2

Default Days

This is the number of days shown when an Actogram is displayed. The software default is 40 days and the maximum allowable value is 60. 2.5.1.3

Default Light start

This is the default for the ‘lights on’ value shown on the left hand side of the Actogram screen. The software default value is 06.00 2.5.1.4

Default Dark Start

This is the default for the ‘lights off’ value shown on the left hand side of the Actogram screen. The software default value is 18.00 2.5.1.5

Warn before overwriting during setup

It is possible to activate a warning which is shown before an Actiwatch is downloaded. By ticking the box ‘Warn before overwriting during setup’ the following warning message is displayed when an Actiwatch is being downloaded:

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Selecting ‘Yes’ allows the user to proceed with the setup. Selecting ‘No’ aborts the setup procedure. 2.5.1.6

Use Default setup

It is possible to specify a default setup for certain parameters by ticking the ‘Use default setup’ tick box. For further information, please see section 2.5.4 on the default setup tab 2.5.2

Reports tab

The reports tab allows the user to select what information is included on printed reports. This includes the option to include: • • • • •

User name – free text field Date/Time – selected by tick box Watch serial number - selected by tick box User name – selected by tick box Actiwatch read date – selected by tick box 2.5.3

Data Path tab

The Actiwatch data path tab allows a default data path to be selected for saving Actiwatch files to. The software default path is C:program filesactiwatch sleep 5 This should only be changed if necessary. 2.5.4

Default Setup tab

It is possible to select certain parameters which appear as default parameters when an Actiwatch is set up. These are: • • • •

Epoch Start Time Gender Age

When the ‘Use default setup’ box is ticked, this tab is accessible and these parameters can be set by the user. When this function is enabled, it is not possible to alter these parameters during the Actiwatch setup procedure.

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3 3.1

Reader Menu

Comms

Select ‘Reader’ and then ‘Comms’ from the main screen:

The following form will be shown

It is important to ensure that the USB reader is correctly installed before attempting to either set-up or download an Actiwatch. For further information on installing the USB reader, please see section 2.7 to 2.10 of the Actiwatch Guide to Getting Started. 3.2

Read

For full details on using the ‘Read’ function, please see section 5 of the Actiwatch Guide to Getting Started. 3.3

Write

For full details on using the ‘Write’ function, please see section 3.1 of the Actiwatch Guide to Getting Started. 3.4

Test Actiwatch

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Selecting ‘Reader’ and then ‘Test Actiwatch’ brings up the following message:

This function should normally only be accessed under instruction from CamNtech. If technical support is required, please call +44 (1) 480 831223. 3.5

Cal Activity

The ‘Cal Activity’ tab is normally an engineering function and should only be used either under instruction from CamNtech or by users familiar with this function. For further information or technical support, please call (+44) 1 480 831223. 3.6

Recover data

Selecting ‘Reader’ and then ‘Recover data’ brings up the following screen:

This option should also only be used under instruction from CamNtech.

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4

Actogram Menu

The Actogram menu allows the user to view a visual display of the activity-rest patterns over the entire length of an experiment. The identity, sex, age, start date, start time, age, gender and epoch are displayed at the top of the screen. The Actogram can either be shown as a single day or dual day plot. Which of these is shown by default can be selected from the properties menu (see section 2.5). For further information on single and double day plots, please see section 4.3.3 The double day plot Actogram as shown in the example below is particularly useful for the visualisation of data collection over a long time period such as in chronobiological experiments.

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4.1

File 4.1.1

Load

Selecting ‘File’ and then ‘Load’ brings up the following screen:

It is then possible to select a file for viewing by double clicking on it. 4.1.2

Edit data

Selecting ‘File’ and then ‘Edit data’ brings up the following screen:

It is then possible to edit the Actiwatch data. Full details are given in section 2.4

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4.1.3

Colours

If a light file is displayed, it is possible to change the colour in which the light data is displayed. For full details on using light files, please see section 8 on Light Analysis. Selecting ‘File’ and then ‘Colours’ brings up the following screen:

The default colour is yellow. Selecting a different colour and clicking on ‘OK’ will change the colour used to display the light data. 4.1.4

Print

Selecting ‘Print’ from the file menu brings up the following screen:

This allows the user to specify the parameters to be printed. Correctly setting these parameters and then selecting ‘Confirm’ will print the selected parameters. 4.1.5

Printer setup

Selecting ‘Printer setup’ brings up the following screen:

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This allows the user to select which printer is used for printing (if applicable) and to alter the page setup when printing 4.1.6

Load setup

Selecting ‘Load setup’ brings up the following message:

This function loads previously saved settings for controls and menu options if they have been saved by the user. For a full list of these settings please see section 4.1.7. 4.1.7

Save setup

Selecting ‘File’ and then ‘Save setup’ brings up the following screen:

Selecting ‘Yes’ saves the current control settings defined by the user. The parameters that can be set are as follows: • Light on

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