Chris Froome: Tour de France winner doing physiological test

Watch Chris Froome being tested at the GlaxoSmithKline Human Performance Lab in London.

The two-time Tour de France winner is undertaking a series of physiological tests from which he will share data because he wants to prove people can "trust" his achievements.

Froome last month vehemently denied allegations of doping when he won the Tour for the second time.