Putting HELO to the test

HELO is a fitness band that utilizes photoplethysmography (PPG) to measure health parameters, and we’re putting it to the test. Alan has collaborated with Nanyang Polytechnic to conduct a controlled trial. We were excited to have an established physiotherapy lecturer and researcher Dr Bala Rajaratnam to oversee this project.

Just a couple of weeks ago, Alan has participated as one of the volunteers in this trial. 

Perhaps, to put it more accurately, he himself was put to the test!

Alan preparing for the controlled trial of HELO.
Alan preparing for the controlled trial of HELO.
The readings were first compared at resting levels.
The readings were first compared at resting levels.

Comparing readings at rest

In this activity, the measurements of HELO’s blood pressure and heart rate were compared to readings given by a gold standard blood pressure monitor device and heart rate monitor device respectively.

As we can see here, we compared the blood pressure readings between HELO and a blood pressure monitor. We’re talking 131/88 to 128/85 mmHg; looks like on the right track!

Then the real workout began

The participant needs to travel on the treadmill in stages of approximately 2 minutes each, starting from low walking intensity. The intensity increased every stage, with the speed rising by around 2.5 km/h and the angle of elevation rising by around 2 degrees. The readings were similarly taken at every stage.

Alan paced himself on the treadmill, with increasing intensity at every stage.
Alan paced himself on the treadmill, with increasing intensity at every stage.

Rating Their Exertion

Participants had to rate how much exertion they felt at every stage, based on the Borg Rating of Exertion Scale. The scales ranges from 0 to 20, where 20 is the maximal exertion.

Most participants hit 20 when they hit the 5th stage of the workout.

The Borg Rating of Exertion Scale
The Borg Rating of Exertion Scale
Dr Bala (middle) recording and comparing the readings.
Dr Bala (middle) recording and comparing the readings.

Great workout! It’s all for science.

This post originally appeared on http://sbamobile.com/putting-helo-to-the-test/