Now, a musical app that listens to your heart during exercise
The biofeedback-based system developed by a University of Virginia graduate researcher helps smartphones select music that will help get their owners' heart pumping during exercise and slow it down when they want to cool down or relax.
"Whether I am driving, jogging, travelling or relaxing – I never find the appropriate music to listen to," said Shahriar Nirjon, a doctoral student in computer science in the School of Engineering and Applied Science.
"I believe there are many like me. The problem is: The heart wants to hear something, but our music player does not understand the need. My joy was in connecting them together - in a non-invasive and cost-effective way," Nirjon said.
Called "Musical Heart", the system "brings together wellness and entertainment," Nirjon said in a statement.
Musical Heart works by merging a microphone that detects the pulse in arteries in the ear with earphones that bring in music from a playlist on a smartphone.
An app selects tunes that optimise the heart rate of an individual user based on a given activity, whether running, walking or relaxing - playing fast-paced music for hard workouts, and slowing the beat for cool-downs.
An algorithm refines the music selection process of the system by storing heart rate data and calculating the effects of selected music on the rate. Over time, it improves music selections to optimise the user's heart rate.
"We've designed Musical Heart to be convenient,
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