Walking is a great way to get and stay fit. But are you doing enough to see results? Using activity-tracking devices and apps can help you set and reach your fitness goals. See how these tools can get ...

It’s that time of year when many people are getting started on their resolutions for the year ahead. Doing more physical activity is a popular and worthwhile goal. If you’re hoping to be more active ...

After living with activity trackers meant to help him stay fit, columnist Danny Sullivan finds "big data" didn't translate into more motivation. Danny Sullivan is a journalist who has covered the ...