1. Department of Science and Health, Institute of Technology Carlow, Carlow R93 V960, Ireland.
2. School of Biomedical Sciences, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK.
3. London Institute of Sport, Middlesex University, London NW4 4BT, UK.
4. Department of Natural Sciences, Middlesex University, London NW4 4BT, UK.
5. GlaxoSimthKline Human Performance Laboratory, Brentford, London TW8 9DA, UK.
6. Institute of Cellular Medicine, Newcastle University, Newcastle Upon Tyne NE2 4HH, UK.