Polar running index
Based on heart rate and speed data measurement during the run.
Running Index is based on heart rate and speed data measured during the running exercise. It gives daily information about the runner’s performance level, both aerobic fitness and running economy. Improvement in running efficiency indicates improved economy of running performance.
Related Polar Heart Monitors
For analytical running. You demand more information and analytical feedback. You want to shave off minutes and seconds from your personal best with proper training planning. RS400sd is your system for planning, monitoring and analyzing your running.
Together with adidas, Polar has created something unique, something truly revolutionary! the world's first integrated training system, combining the Polar s3 stride sensor, Polar WearLink transmitter, Polar RS800 Running computer, the adidas adistar Fusion apparel and the adidas adistar Fusion shoe.
