Jussi Peltonen

Jussi Peltonen is a Senior Researcher at Polar, specialized in running biomechanics. When he is not collecting data for future running features he enjoys barefoot running.

How To Run In The Blistering Heat

It’s hot, but your body can take it… if you make some adjustments to your training plan. Learn how you can keep enjoying your favorite sport safely.

Time to Run or Time to Walk? Your Body Knows the Answer

Have you ever wondered why we walk as fast as we do? Here’s how the body understands when – and how fast – to walk and when it’s time to start running.

Running Running Science Walking

Running Power Is Here – Does It Mean Heart Rate Training Is Old News?

With the new wrist-based running power, the power vs heart rate question is puzzling many runners: What are the differences and should you favor one over the other?

Running Data