shining light on the body

 
 

                                                Haemoglobin changes colour as it binds oxygen          

Near Infrared Spectroscopy (NIRS) is able to use colour changes in the 700 - 1000 nm region to measure absolute and relative levels of chromophores in the body e.g. oxyhaemoglobin, deoxyhaemoglobin, lipid, mitochondrial cytochrome oxidase. We are particularly interested in the colour changes of the blood oxygen transporting protein, haemoglobin. Changes in these chromophore concentrations can be used to measure brain injury, brain activity, muscle blood flow and muscle oxygen consumption. We have clinical interests in using mathematical modelling to inform the treatment of traumatic brain injury (click here) and sports interests in informing training techniques in elite athletes (see below). My work in this area has been funded by the UK’s Medical Research and Engineering and Physical Sciences Research Councils, the Wellcome Trust, the British Olympic Association and elite sports teams.

    This enables us to measure brain function                         Or sports performance in elite athletes

Double click below to see a movie of elite UK short track speed skaters trialling NIRS methods of comparing muscle oxygenation in their left and right legs during a 500m time trial