An avalanche of fitness monitoring devices has poured onto the market in recent years.

I wondered how people in the fitness business are using them, so I polled a bunch of people I know. I was particularly interested in how heart rate monitors are figuring in the mix. Heart rate monitoring figures prominently in recommendations about prescribing exercise routines, but I found my own results pretty confusing. Continue reading How Fitness Experts Use Monitoring Devices (Part II) →