Dr Tina van Duijn (IMAGE) University of Otago Caption Dr Tina van Duijn from the University of Otago's School of Physical Education, Sport and Exercise Sciences. Credit The University of Otago Usage Restrictions No restrictions if credit is used License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.