A Sydney woman has become the first to complete seven marathons in seven days on seven continents in a wheelchair (the so-called World Marathon Challenge).<br /><br />Johanna Garvin -who was diagnosed with cerebral palsy at the age of one- completed the World Marathon challenge with help from two runners with extensive endurance experience, fellow Australian James Alderson and British Steve Birnie.<br /> <br />Alderson and Birnie took it in turns to alternately push the 26-year-old woman in a customized wheelchair. The aerodynamic chair, which cost approximately $50,000, had one wheel at the front and two wheels at the back. <br /> <br />Even though Johanna was being pushed around the courses, she was kept busy helping with logistics, particularly during the four-night marathons, often shouting out “potholes, left hand side.”<br /> <br />The trio took on average between four to five hours to complete each of the marathons.
