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Paul Macdermid

Doctor of Philosophy, (Sport and Exercise Science)
Study Completed: 2015
College of Health


Thesis Title
Performance and physiological consequences of roll dynamics during cross-country mountain bike racing

Read article at Massey Research Online: MRO icon

Understanding the interaction between physical exertion and subsequent physiological responses is vital if athletes or coaches are to improve human efficiency and thus sports performance. Mr Macdermid investigated the non-propulsive element of cross-country mountain biking through a series of novel field based studies performed on New Zealand mountain bike courses. Data from tri-axial accelerometers synchronised with a bicycle power meter enabled the separation of propulsive and non-propulsive work. Combined with the use of a breath-by-breath portable metabolic cart and heart rate monitor, indices of human efficiency were assessed. His research identified considerable exposure to impacts and vibrations with high levels of mechanical-soft tissue damping taking place to protect the central nervous system and brain during off-road riding. Reduction in exposure levels increased rider efficiency and was proposed as a means of performance enhancement and reduced injury risk.

Professor Steve Stannard
Dr Philip Fink