Penn researchers have announced details for a suspended-load ergonomic backpack that reduces the force of a backpacks load on the wearer by 86%, allowing wearers to run far more comfortably with heavy loads.<br><br><a href='http://www.upenn.edu/pennnews/article.php?id=1064' target='_blank'>http://www.upenn.edu/pennnews/article.php?id=1064</a><br><br>