1. Biomechanics Research Group, Department of Exercise and Sport Science, Manchester Metropolitan University, Hassall Road, Alsager ST7 2HL, UK
2. Cycle Historian, 522 Holly Lane, Erdington, Birmingham, B24 9LY, UK
3. Physiology Group, Dipartimento di Scienze e Technologie Biomediche, Universitá degli Studi di Udine, Piazzale Kolbe 4, 33100 Udine, Italy