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He was referred by his physiotherapist to an exercise scheme at his local leisure centre to help him during the wait for his second knee replacement.

NHS staff then deliver classes at the leisure centre instead of the hospital setting.

Paul O'Sullivan retired 10 months ago and has filled his days with sessions at the leisure centre, after also being referred by his physiotherapist following a second knee replacement six months ago.

"At the end of the six week programme where they would have left the hospital setting they're already in the leisure centre, they've already broken down that barrier of coming through the door," she said.

Hayayei, 36, died on 11 July 2017 after a metal cage fell on him while he was training at Newham Leisure Centre in east London ahead of the World Para Athletics Championships.