Marilyn Okoro

In order to see this content you need to have both Javascript enabled and Flash installed. Visit BBC Webwise for full instructions

"If I can do it so can you," says the British 800m runner.

"If I can do it so can you," says the British 800m runner.


See also

Don't follow, take the lead.

Tasha Danvers-Smith

400m hurdler

Media zone

Pierre Dulaine

Video clips

Check out the video with the famous dance instructor Pierre Dulaine.

Training ground

Colin Jackson

Work hard

Colin Jackson reveals more top tips on making exercise part of your lifestyle.

BBC © 2014The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.