DANNY: Hey, I'm Danny. And welcome to Let's Do This, where we will get active together. This activity is called Standing Long Jump. This is a great activity to develop your jumping power.

Steffensen said: "So are you trying to tell me if your team say: 'Usain, We need you to do the long jump. Can you do the long jump?' Are you going to long jump?" And Bolt, a nine-time Olympic gold ...