"We are fully aware that this may make some families uncomfortable."

Freshmen at Florida's Lakewood High School lined up against gold and black gymnasium mats on Friday to have their height and weight measured, an assessment to launch a novel study on fighting teenage obesity with trendy new technology.

Researchers affiliated with Johns Hopkins Medicine, whose network includes a Florida children's hospital near the school, plan to use results of the screening to select about 50 overweight students and track their activity levels using the Fitbit, a connected wristband.

Read more at Reuters.