Harvard professor Daniel Lieberman has ditched his trainers and started running barefoot. His research shows that barefoot runners, who tend to land on their fore-foot, generate less impact shock than runners in sports shoes who land heel first. This makes barefoot running comfortable and could minimise running-related injuries.

Read the story: A softer ride for barefoot runners

Read the paper: Foot strike patterns and collision forces in habitually barefoot versus shod runners