(19)

(11)

EP 2 101 882 A1

(12)

(43) Date of publication: 23.09.2009 Bulletin 2009/39 (21) Application number: 07824659.2 (22) Date of filing: 20.11.2007

(51) International Patent Classification (IPC):  A63B 5/20(2006.01) (86) International application number: PCT/GB2007/004447 (87) International publication number: WO 2008/062180 (29.05.2008 Gazette 2008/22)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR (30) Priority: 21.11.2006 GB 0623202 (71) Applicant: COVENTRY UNIVERSITY Coventry CV1 5FB (GB)	(72) Inventors: ZHENG, Su Derbyshire DE56 1DS (GB) ADAM, Martin Derbyshire DE56 1DS (GB) MILLIGAN, Greg Coventry CV2 4EY (GB) (74) Representative: Butler, Michael John  Frank B. Dehn & Co. St Bride's House 10 Salisbury Square London EC4Y 8JD London EC4Y 8JD (GB)