Just do it: Is it really possible to achieve a sub-two-hour marathon?

Sportswear giant Nike has divided opinion with claims that advanced technology can combine with training and talent to change the face of athletics. Mitch Phillips reports

This weekend, aided by a host of technological and environmental advances, three carefully selected elite African athletes will attempt to run the first sub-two-hour marathon.

The ‘Breaking2’ project is the latest enterprise of American sportswear giant Nike and has split opinion in the world of athletics, not to mention physiology.