Dr Len Parker Simpson



Len has been working in elite sport for over 10 years, contributing to Team GB’s success across three Olympic and Paralympic cycles. 


Most recently, Len has been working with coaches, athletes and colleagues at British Cycling. In his role as Physiologist, his input into the training content and periodisation assisted GB in recording their record medal hauls at the London 2012 and Rio 2016 Games.  


Len completed his PhD in sports Physiology at the University of Exeter, UK.  There, he studied the ‘Critical Power model’; a bioenergetic model explaining performance capabilities for events spanning ~ 2 to 45 min. More specifically, he specialised in how both the ‘aerobic’ and ‘anaerobic’ parts of this model changed in different environments and following divergent training stimuli.


Using a scientifically-led approach to training and applying it within the elite sport environment led to some substantial steps forwards in the performances of high-level athletes. 


Having developed further understanding through working with some of the worlds best athletes, coaches and practitioners, Len has a clear, straight forward approach to optimise training for the goals or performances of any athlete.