Wearable tech will transform sport – but will it also ruin athletes' personal lives?

Much of wearable technology is used to help coaches, trainers and general managers maximize player performance - but athletes want to make sure the line between the personal and the professional doesn't blur

Wearable technologies and big-data analytics are enabling coaches, trainers and general managers to analyze previously unquantifiable aspects of athletic performance in fine detail. But as more technology gets strapped on to professional athletes, some are beginning to express concern over how such devices could be used to track their diet, sleep patterns and life off the field.

"The pros have to be careful," said Brian Bulcke, a defensive lineman in the Canadian Football League. "They're working in a very small cluster of highly competitive people, they're highly monitored and highly scrutinized."