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Actiheart Guide to Getting Started 5.1.11 (Feb 2020)    

    

         

6

 

1. Introduction to the Actiheart System 

1.1 Overview

 

The Actiheart 5 and is a compact lightweight device that records the 
electrocardiogram (ECG) between two ECG pads on the chest, simultaneously 
with three-axis acceleration waveforms within the same unit. 

Alternatively, the Actiheart 5 can record ECG peak information for continuous 
Inter-Beat-Interval (IBI) monitoring for up to two weeks, in addition to three-axis 
acceleration waveforms. 

This allows detailed study of movement patterns on both a short and long term 
basis, in addition to heart rate variability and energy expenditure in everyday 
daily living and more intense sessions of exercise.  

An Actiheart system consists of two components:  

 

The Actiheart device with detachable electrode connection 

 

Actiheart Analysis Software

 

 
Additionally, a standard micro-USB lead is used to connect the Actiheart to a PC 
for setup, download & charging of the device.

 

1.2 
Contraindications 

The Actiheart is indicated for use on healthy, undamaged areas of skin. Where 
the subject has a history of skin irritation, a sample ECG electrode should be 

tested for skin irritation prior to commencing any recording. 

1.3 Required 
Skills, Training & 
Knowledge of 
Intended Users. 

It is intended that the device be administered only by duly qualified health care 
professionals, researchers and or trained nursing staff. 

1.4 General 
Description of Use 

The Actiheart is intended for the monitoring of physical movement and activities, 
measurement of Energy Expenditure and analysis of HRV in research 
applications. 

The Actiheart is typically worn by the subject during their normal daily activities 
over a period of up to one week thus providing a benefit over lab based ECG 
tests which only provide a short ‘snapshot’ of heart activity. 

The Actiheart has an LED indicator on the front which flashes to indicate ongoing 
recording.  

 

 

Содержание Actiheart 5

Страница 1: ... Guide to Getting Started Covering Actiheart Actiheart Software Document Reference 30209 Issue Version 5 1 11 Issue Date 24 02 2020 This equipment must be configured and operated in accordance with these instructions and in conjunction with The Actiheart 5 User Manual ...

Страница 2: ...ation if further clarification is required The CE mark is applied to the Actiheart to indicate conformity with the following Directives Electromagnetic Compatibility Directive 2014 30 EU RoHS2 Directive 2011 65 EU WEEE Directive 2012 19 EU Manufacturer For assistance with set up use or maintenance of the Actiheart or to report any unexpected operation or events please contact CamNtech using the de...

Страница 3: ...er to the warnings in the instructions for use i e this user guide Consult Instructions for Use This symbol indicates that important operational information is contained in the user instructions i e this user guide Ingress Protection Rating IPX7 The Actiheart is suitable for temporary immersion in water up to 30 minutes at 1m Serial Number This number provides a unique identification for a particu...

Страница 4: ...appropriate ECG Pads and Preparation of the Skin 13 5 2 Skin Preparation 13 5 3 Multi Day Wear of ECG Pads 14 5 3 Electrode Positioning 14 5 4 Positioning of the Actiheart 15 5 5 Use of the Actiheart in Water 16 6 0 Setting up a User in the Database 17 6 1 Selecting an existing User from the Database 17 6 2 Setting up a new User 18 7 0 Checking Signal Integrity and Performing a Test Recording 20 7...

Страница 5: ...be cared for correctly to maximise service life Following any long recording always ensure the battery is at least partly re charged do not leave it completely flat before storage However it need not be completely recharged If the device is to be stored for an extended period then it should ideally be part charged rather than left either completely full or empty ...

Страница 6: ...a standard micro USB lead is used to connect the Actiheart to a PC for setup download charging of the device 1 2 Contraindications The Actiheart is indicated for use on healthy undamaged areas of skin Where the subject has a history of skin irritation a sample ECG electrode should be tested for skin irritation prior to commencing any recording 1 3 Required Skills Training Knowledge of Intended Use...

Страница 7: ... optional Live Display feature with an Actiheart 5 BT which has the Bluetooth module fitted your PC must also meet these requirements Windows 10 Bluetooth capable hardware 2 2 Software Installation Menu Place the CD ROM into the drive the operating system should automatically offer to install the Actiheart 5 software You will then see the installation wizard below To install the software click Nex...

Страница 8: ...s upgrading from an earlier version of Actiheart Software The Actiheart 4 software may be installed and used alongside the Actiheart 5 software The use of Actiheart 4 devices is fully supported in the newer version and we would recommend upgrading to it whenever possible It also better supports installation for non admin users than the older software However we would not recommend switching softwa...

Страница 9: ...ter your Actiheart system with CamNtech you will be supplied with an 8 digit serial number along with the software This serial number is unique to the user and will enable the user to obtain software support from CamNtech Once this is done the software is ready to use ...

Страница 10: ...tiheart 5 Test Window function and then the Battery button If charged this will show a result similar to If you experiencing any battery charge issues leave the Actiheart connected to a mains powered USB supply for at least three hours Then connect to a PC and perform the check described above noting the result values for CamNtech technical support It is very important that you DO NOT attempt to c...

Страница 11: ...fe in the short term recording mode is only 4 days due to the LED flashing with every heart beat IMPORTANT NOTES ABOUT USB CHARGING Many Computers have power saving functions which shut down all or part of the PC after a period of time this will stop the charging of the Actiheart Un powered USB hubs can have an output voltage below that required for Actiheart charging For reliable charging of the ...

Страница 12: ...emonstration data in your own Documents directory This will allow you to quickly try out parts of the software to view data before needing to make a proper recording Note however that we strongly recommend creating a new empty database before beginning any significant data collection as it will make it easier to organise the data and distinguish real results from test recordings When you wish to c...

Страница 13: ... high adhesion 3M Red Dot 2560 These are extremely adhesive pads that provide very good adhesion for short term use The downside of this is that on removal CamNtech has noticed some gel residue left on the skin They are not really suitable for long term use Long Term Recording Pads These tend to be micro porous cloth backed pads which allow the skin to breathe during longer term recordings DORMO S...

Страница 14: ...hould not be cause for concern Apply the chosen pads to the chest This is best achieved by placing the pad in the centre of the chest and locating the Actiheart on it Attach the second pad to the other clip on the Actiheart and use the wire to position the second electrode Further details on positioning of the Actiheart are shown below 5 3 Multi Day Wear of ECG Pads Although many of the ECG pads f...

Страница 15: ...CG amplitudes in women J Electrocardiol 1998 Jan 31 1 17 29 5 4 Positioning of the Actiheart For good accurate measurement of activity the Actiheart needs to be placed with the top edge of the device body as near to horizontal as possible A 10 degree tilt Fig B gives a theoretical activity reading error of 3 for vertical movement However a 45 degree tilt would mean that the detected magnitude is 3...

Страница 16: ...roof use in the water for example when swimming can result in movement of water and the Actiheart which will result in noise on the ECG signal This can be avoided by covering the Actiheart unit completely with a swimsuit which will isolate movement over that area or large waterproof plaster or equivalent whilst swimming ...

Страница 17: ...y the unit is checked by recording a short signal test so this is usually the most appropriate place to set up a new user After opening the main menu of the Actiheart software click on the Signal Test button This brings up the screen shown below Clicking the Setup button then produces the following screen Clicking Find allows the settings for an existing user to be retrieved Clicking Add New allow...

Страница 18: ... selecting Add New produces the following screen The user ID date of birth and sex are entered here Selecting Next produces the following The weight and height of the user are selected from here It is possible to input the user details either in Metric or Imperial units The increments are 1cm and 0 1 Kg Accurate measurements are necessary for calculations of energy expenditure but do not affect th...

Страница 19: ...ny other measurements made using the software Sleeping heart rate is critical to accurate energy expenditure calculations during daily living The easiest way to collect accurate sleeping data is to wear the Actiheart for at least one overnight recording then use the Set sleeping heart rate function in the Long Term analysis window to extract the measure from the overnight Actiheart recording Howev...

Страница 20: ...es will be more than sufficient The method described below for making a recording and downloading the data to the PC for analysis applies equally to the various other recording modes described in the User Manual and summarised in Section 8 of this guide 7 1 How to set up a Signal Test Connect the Actiheart to its micro USB lead and to the PC Look carefully before inserting the connector The intern...

Страница 21: ...o is also upwards After switching to the ECG connector lead connect both clips to the ECG pads attached to the chest This is performed for each connector separately First depress the small button to release the connector While holding this depressed move it onto the ECG pad metal nipple Once onto the nipple release the button and the Actiheart will grip the ECG pad Note that no physical push is re...

Страница 22: ...gress bar Once this is finished the following screen is shown 7 3 Storing Comments with the Data This allows the user to add comments on the recording which will be stored along with the data This could be for example that the wearer has described when they did or did not wear the Actiheart during the period or the type of ECG pads that were used for the recording Once any comment required is ente...

Страница 23: ...en caused by movement If a recording has failed for the 10 second period currently displayed as indicated by the graphics to the right of the window this usually means that either the noise level is too high or the R wave is too low The following tests are applied to determine this 16 signal noise x 2 7 signal noise 4 75 signal 9 6 but this is normally true anyway In either case it is necessary to...

Страница 24: ...ption will appear in the available mode list as shown below Note that the Actiheart 5 is not designed to provide alarms or warning of any kind against high heart rate arrhythmia or any other heart condition It is presenting live data and estimated heart rate as additional information for the researcher or clinician not diagnostic purposes or as a preventative alarm for a life threatening condition...

Страница 25: ...tooth function is set to On Then click Add Bluetooth or other device and choose to add a Bluetooth device The computer will then display any nearby devices Your Actiheart 5 must be broadcasting in order to appear in this list If you have set it up as described previously you will still need to wait for it to begin recording before it will appear in the list as shown below Click on the Actiheart 5 ...

Страница 26: ...t was set up on another computer you can do so from the main menu via Utilities Actiheart 5 Several Actiheart 5 BT live streams can be shown simultaneously The windows may be opened automatically as each is set up or through the Utilities window as described above 8 4 Capabilities Requirements The Live Display feature requires Windows 10 and Bluetooth functionality in your PC in order to function ...

Страница 27: ... with sample rates of 25Hz 50Hz or 100Hz Note that the exact acceleration sampling frequency will vary internally but it is timestamped alongside the ECG signal capture and interpolated as necessary for each analysis window The raw data exported as text from the Recording Details window will show the timing for each raw sample rather than any interpolated results For the Full Waveform mode the ECG...

Страница 28: ...Mode IBI Monitoring Designed for capturing and measuring heart rate variability for up to two weeks Requires IBI recording and activity data quantifying the amount of movement each 15 seconds Using an Actiheart 5 IBI Mode Long Term Designed for robustly capturing heart rate and movement data for up to two weeks without emphasis on individual IBIs Requires heart rate recording and activity data qua...

Страница 29: ...mplex options Makes use of heart rate and activity data Using an Actiheart 5 IBI Mode Advanced EE Designed for more flexible measurement of Energy Expenditure and including many more options for individual calibration adjustment and breakdown of the branched model Makes use of heart rate and activity data Using an Actiheart 5 IBI Mode Exercise Test Designed as a more flexible variant of the step t...

Страница 30: ... is recommended to charge after use and only avoid fully recharging if the device will be left stored for a long period when it should be left part charged A1 3 Disposal Waste Electrical Electronic Equipment WEEE The EU requires under the Waste Electrical and Electronic Equipment Directive 2012 19 EU that manufacturers and or distributors of Electronic and or Electrical Equipment manage and pay fo...

Страница 31: ...dance connection to the skin of the subject Carefully follow the advice provided in section 5 and allow the ECG electrodes time to settle at least 30 minutes before attempting a recording Perform a signal test to determine the quality of the ECG If the signal quality is poor try moving the position of the ECG electrodes slightly or try the alternative mounting location see section 5 The Actiheart ...

Страница 32: ...018 First Issue Pre production TE 5 0 6 5 0 6a 01 02 2019 Corrected doc ref corrected page no position minor layout corrections HS 5 0 6a 5 0 28 01 12 2019 Inclusion of live Actiheart 5 data display TE 5 0 28 5 0 29 31 12 2019 Updated CamNtech address details HS 5 0 29 5 1 11 24 02 2020 Updated for longer IBI recordings up to two weeks TE ...

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