Advertisement02:07VideoHong KongPreparing the Hong Kong marathon with a prosthetic legPublished: 3:30pm, 25 Jan 2013Updated: 11:11am, 10 Oct 2014AdvertisementAdvertisementSelect VoiceSelect Speed0.8x0.9x1.0x1.1x1.2x1.5x1.75x00:0000:001.00x