POSTED: Friday, January 29, 2010 - 10:11am
UPDATED: Thursday, February 25, 2010 - 12:35pm
A robot that helps people exercise is one of several popular products unveiled at an expo in Japan.
The robot, named Tazio, led a group of people in an exercise session and another product could help double the strength of a person's legs and make it easier for them to walk.