I am
Capturing hearts with wearable devices and smart home technology
heartfoundation.org.au|Helpline 13 11 12

Capturing hearts with wearable devices and smart home technology

This World Heart Day, get to know two talented researchers and their innovative, life-saving work funded by the Heart Foundation.

The COVID-19 pandemic has shown just how important digital technologies are in helping us to remain connected, as families, communities, and workplaces.  

So, it’s no coincidence the theme of World Heart Day this year is all about harnessing the power of digital health to improve global awareness, prevention and management of cardiovascular disease.  

Digital health refers to a range of technologies that can be used to both provide healthcare and share a person’s health information. It’s a broad term that covers things like smartphone apps, electronic health records, telehealth, wearable devices (like smart watches), electronic prescriptions and even health reminders sent by text message.  

The past 18 months have shone a spotlight on ways that digital health can give people the opportunity to lead heart-healthy lives, no matter where they live. More cardiac rehabilitation programs are now available via telehealth, our Heart Age Calculator can help you understand your risk of a heart attack or stroke, and over 100,000 people have signed up to our Personal Walking Plans.  

Recognising the potential of digital health to improve Australians’ heart health, the Heart Foundation is currently funding a variety of digital health research projects. Read on to meet two of our talented researchers as they explain their innovative, life-saving work.

Go go gadget watch: wearable devices to detect abnormal heart rhythms

You might remember ‘Inspector Gadget’ and his savvy sidekick Penny with her video-enabled watch that today would be referred to as a smart watch. 40 years later, this cartoon wasn’t so far off the mark, and the features of smart watches today go beyond video-calling. They can also potentially be used to detect abnormal heart rhythms.

Meet Associate Professor (A/Prof) Saurabh Kumar who is a cardiologist and cardiac electrophysiologist (a cardiologist who specialises in treating electrical problems of the heart) at Westmead Hospital in Sydney. He is also a Clinical Associate Professor of Medicine at the University of Sydney.


In 2019, A/Prof Kumar was awarded a Heart Foundation Vanguard Grant to support his research on wearable devices (smart watches) and their ability to detect abnormal heart rhythms, such as atrial fibrillation. Atrial fibrillation is a common cause of blood clots which can travel to the brain and cause a stroke.

"People from all age groups will experience palpitations or irregularities in their heart rate at some point in their lifetime,” says A/ Prof Kumar. “The older you are, the more likely you are to have a heart rhythm problem, which can be serious and can lead to a stroke or even sudden death."

The standard way of diagnosing heart rhythm abnormalities is with an electrocardiogram (ECG; a test that records the electrical activity of the heart). An ECG is most often performed in a clinic or sometimes people may wear a portable ECG monitor for 24 hours or longer to record their heart rhythm.

“One of the problems is that palpitations are fleeting and can be unpredictable. A person must have an abnormal heart rhythm when they’re in a doctor’s office or in the emergency department having an ECG,” explains A/Prof Kumar. “The chances of diagnosing someone with episodic palpitations (palpitations that come and go) are very low.”   

And while portable ECG monitors may be more likely to detect an abnormal heart rhythm than a five-minute ECG, they can be bothersome for people to wear and in some parts of Australia can be difficult to access. This is where other handheld devices and smart watches could play a role.   

There are several types of handheld devices and smart watches available in Australia. Some have ECG capabilities and have been approved as a medical device by the Therapeutic Goods Administration as being able to detect abnormal heart rhythms. Notifications are sent to the wearer in real time if a rhythm abnormality is detected. They are convenient and can be worn throughout the day (and night), or can come with sensors that can be placed on the back of a smartphone, capable of recording a single lead (or multi-lead) ECG. 

While innovative wearable devices like these sound exciting, there’s more to the story. Even though ECG-enabled smart watches or handheld devices can detect abnormal heart rhythms, how they compare to a standard ECG (using 12 leads) and other gold standard tests isn’t entirely clear. A/Prof Kumar’s research is exploring this.   

“The first question we want to answer is how accurate and reliable these devices are, and as doctors, if we can be sure they’re telling us the right information,” says A/Prof Kumar.  

Part of his project involves comparing the results of different brands of smart watches with a traditional ECG. “We’ve found that certain smart watches may perform as well as a normal ECG,” explains A/Prof Kumar. “This is an exciting finding and suggests these user-friendly devices could possibly help improve detection and treatment of atrial fibrillation and other rhythm abnormalities. Larger studies are currently underway to explore this further.”   

The second part of A/Prof Kumar’s research is looking at the reliability of a handheld ECG device, which is easy to carry and much less cumbersome than a normal ECG or a portable monitor. A person also needs to lie down for a normal ECG, which is not ideal.  

“This isn’t the typical scenario where a person would necessarily feel palpitations. Often, they experience them during exercise or when walking around,” says A/Prof Kumar. “This is where a handheld ECG could be useful.” A/Prof Kumar is investigating how a handheld ECG performs compares to a normal ECG. “Again, we have found very good agreement between a normal ECG and a handheld ECG.”  

These are exciting early results, demonstrating the potential of digital health technologies to diagnose heart problems more conveniently and just as reliably. These types of digital health technologies can also improve accessibility for all Australians.  

“This is an example of how people who live in regional or remote parts of Australia can access healthcare without having to travel hundreds or thousands of kilometers,” says A/Prof Kumar.  

“This study funded by the Heart Foundation has the potential to transform healthcare in the current era, especially during the COVID-19 pandemic, but also in the future. We can empower people to take a central role in managing their heart health. I thank the Heart foundation again for the fantastic support in getting this project off the ground.”  

Science fiction or science? A smart home system for people living with heart failure

The term ‘smart home’ probably conjures up a range of different images. Something out of ‘The Jetsons’? Being able to turn the lights on by clapping your hands? Setting your coffee machine to turn on just as you’re about to get out of bed in the morning?  

Smart home devices can automate some of our daily tasks and make our life more convenient. What’s exciting is that they might also have a role to play in supporting people to manage heart conditions like heart failure.  

Heart failure is a condition where the heart muscle doesn’t pump blood to the rest of the body the way it should. It is a long-term condition that often needs lifelong management, including medicines.  In Australia, on average, one person is admitted to hospital for heart failure every 8 minutes. Nearly a quarter of people who are treated in hospital for heart failure are readmitted within 30 days of being discharged. The good news is that over half of these readmissions could be prevented by supporting people to manage their condition. This includes being able to recognise when their heart failure symptoms are getting worse and when to seek help.  

Dr Shariful Islam is a researcher at the Institute for Physical Activity and Nutrition at Deakin University. In 2017, he was awarded both a Heart Foundation Postdoctoral Fellowship and a Heart Foundation Vanguard Grant. Dr Islam is currently researching the role of a smart home system to help people living with heart failure to manage their condition.

“For a person with heart failure, their symptoms can change day by day,” says Dr Islam. “I am developing a smart home system to monitor behaviours like physical activity, daily weight measurements, and adherence to medicines. The system can also record blood pressure, heart rate and heart failure symptoms.”  

This means a person’s healthcare team can respond quickly to changes in a person’s condition before they become unwell. The system will also prompt people to check-in about their mood and mental health, food intake, and amount of time spent outdoors.  

Dr Islam describes his innovation as an ‘ecosystem’ which will use a combination of digital health technologies to give an overall picture of the person. These include wearable devices to measure blood pressure, heart rate and rhythm (which Dr Islam is also researching as part of his Vanguard Grant), along with apps and automated voice systems. The data are sent to the person’s healthcare team to review and intervene, if necessary.

The smart home system will also be able to send personalised voice and text messages to help motivate people and support them to stay on track. “We can empower the person with a simple tool to self-monitor and better manage their condition,” explains Dr Islam.  

The beauty of this smart home system is that it could also improve outcomes for people living in regional and remote parts of Australia, by connecting them more easily with their healthcare team.  

“The system could contribute to reducing readmissions to hospital, improving health outcomes and improving quality of life for people living with heart failure,” says Dr Islam.  

Dr Islam’s research is currently in the pilot phase. Support from the Heart Foundation has enabled him to secure a further $600,000 in funding from the National Health and Medical Research Council for the next phase of this project.  

While it’s still early days for some digital health technologies, it’s clear their part in the care of people with cardiovascular disease will continue to grow. This World Heart Day, the Heart Foundation would like to give a heartfelt thanks to our generous donors and supporters for their contribution to innovative and life-saving research like this.  

Remember that findings from any digital health technology should always be interpreted by and discussed with your doctor, in the context of your overall heart health. If you’re aged 45 years and over, or 30 years and over for Aboriginal and/or Torres Strait Islander Peoples, book in with your doctor today for a Heart Health Check.

You might also be interested in

The Heart Foundation Alumni Program

The Heart Foundation Alumni Program

The Heart Foundation Alumni Program

Stay connected with your research alumni community. ...

GLOBAL CARDIOVASCULAR RESEARCH FUNDERS FORUM

GLOBAL CARDIOVASCULAR RESEARCH FUNDERS FORUM

GLOBAL CARDIOVASCULAR RESEARCH FUNDERS FORUM

FACILITATING INTERNATIONAL CLINICAL TRIALS ...

2020 Strategic Grant Recipients

2020 Strategic Grant Recipients

Heart Foundation Research Award Recipients

Heart Foundation Research Award Recipients

Explore our research award recipients and projects...

Managing your funding

Managing your funding

Managing your funding

Resources to help manage your grant, scholarship or fellowship....

Research Alumni

Research Alumni

Research Alumni

The Heart Foundation Alumni Program brings together current and previously funded researchers to create a community of the best and brightest in heart-related research....

Our research stories

Our research stories

Our research stories

We fund amazing researchers who have important stories to tell...

NSW Cardiovascular Research Network

NSW Cardiovascular Research Network

NSW Cardiovascular Research Network

Encouraging cardiovascular research excellence in NSW ...

Research connect newsletter

Research connect newsletter

Research connect newsletter

The Research Connect Newsletter provides monthly updates on the Heart Foundation Research Program....

Queensland Cardiovascular Research Network

Queensland Cardiovascular Research Network

Queensland Cardiovascular Research Network

QCVRN provides a framework to strengthen cardiovascular research in Queensland...

MyMarathon

MyMarathon

MyMarathon

The fundraising race where you set the pace. Run, jog or walk MyMarathon at your own pace during October....

Heart Health Check Toolkit

Heart Health Check Toolkit

Research Directory

Research Directory

Benefits of physical activity for your heart

Benefits of physical activity for your heart

Benefits of physical activity for your heart

Physical activity and exercise can do wonders for your physical and mental health....

WEBINAR | Pressure rising: Clinical controversies and updates in hypertension

WEBINAR | Pressure rising: Clinical controversies and updates in hypertension

WEBINAR | Pressure rising: Clinical controversies and updates in hypertension

Workplace giving for employees

Workplace giving for employees

Workplace giving for employees

Your employer’s workplace giving program makes it easy to setup regular, tax-deductible donations from your pre-tax income. ...

Christmas recipes

Christmas recipes

Christmas recipes

Find heart healthy festive recipes. ...

Supporting Your Emotional Wellbeing: An Online Forum for Young Heart Patients

Supporting Your Emotional Wellbeing: An Online Forum for Young Heart Patients

Supporting Your Emotional Wellbeing: An Online Forum for Young Heart Patients

Donate to the Heart Foundation

Donate to the Heart Foundation

Donate to the Heart Foundation

Every dollar that you donate will help fund research, support and programs that help save lives....

Heart Health Check Toolkit – Post-use evaluation survey

Heart Health Check Toolkit – Post-use evaluation survey

Tahini tofu dressing

Tahini tofu dressing

Tahini tofu dressing

What is atrial fibrillation?

What is atrial fibrillation?

What is atrial fibrillation?

Atrial fibrillation is a type of arrhythmia where your heart beats irregularly and fast....

Become a corporate partner

Become a corporate partner

Become a corporate partner

Partner with us to help us fight for Australian hearts....

Q&A with Dr Rachel Climie

Q&A with Dr Rachel Climie

Q&A with Dr Rachel Climie

Vascular ageing and cardiovascular disease in high-risk populations...

Exercise boosts artery health in middle-aged and older men, not testosterone therapy

Exercise boosts artery health in middle-aged and older men, not testosterone therapy

Exercise boosts artery health in middle-aged and older men, not testosterone therapy

Media Release - 22 February 2021...

Raffles & Lotteries

Raffles & Lotteries

Raffles & Lotteries

Give yourself a chance to win up to $25,000* while helping the Heart Foundation to raise essential funds for heart research....

The Heart Foundation Research Program

The Heart Foundation Research Program

The Heart Foundation Research Program

We are Australia’s biggest non-government funder of world-class research into heart health. Learn more about our high impact research. ...

Snack recipes

Snack recipes

Snack recipes

Search for healthy snack ideas...

Know your risk: Family history and heart disease 

Know your risk: Family history and heart disease 

Know your risk: Family history and heart disease 

A family history of heart disease could mean you are at greater risk....

Seafood recipes

Seafood recipes

Seafood recipes

Find heart healthy seafood recipes...

24-hour Blood Pressure Monitoring

24-hour Blood Pressure Monitoring

Blood pressure monitoring at home using a 24-hour blood pressure monitor test....

Smoking and tobacco regulation

Smoking and tobacco regulation

There are still more than 20,000 deaths caused by smoking every year....

Salad recipes

Salad recipes

Salad recipes

Search through our tasty salad recipes...

Key Statistics: Cardiovascular Disease

Key Statistics: Cardiovascular Disease

Statistics and information on Cardiovascular disease in Australia. ...

Strawberry fields oats

Strawberry fields oats

Strawberry fields oats

10 minutes
Serves 2

Getting active at school

Getting active at school

Getting active at school

Physical activity resources for school staff....

Acute coronary syndromes (ACS) clinical resources

Acute coronary syndromes (ACS) clinical resources

Resources and clinical information for health professionals...

Help others in need through a gift in your Will

Help others in need through a gift in your Will

Help others in need through a gift in your Will

Ian “did not hesitate” to leave 100% of his estate to the Heart Foundation....

Atrial Fibrillation (AF) clinical resources

Atrial Fibrillation (AF) clinical resources

Resources and clinical information for health professionals...

WEBINAR | The future of CVD risk assessment

WEBINAR | The future of CVD risk assessment

WEBINAR | The future of CVD risk assessment

Should population-based CVD risk assessment models make way for individualised risk prediction techniques?...