Muay Thai: Meet the Cornish kick-boxing dynasty
23 March 2013 Last updated at 09:07 GMT
The woman who first went to a kick-boxing class in an effort to work off some baby-weight is about to hang up her gloves, a 14-time World Champion.
Julie Kitchen now teaches Muay Thai, and her twin daughters have taken up the sport - and one of them is challenging for her first world title on Sunday.
Mike Bushell reports.