But if I keep my core and back strong, the scoliosis doesn't really bother me.

We're not like the distance guys. I have a very simple approach. I don't overcomplicate. People ask me, are you doing 42 steps, 44 steps for 100 metres? I don't know.

It's always a wake-up call to get beaten.

You have good days and bad days.

We Jamaicans are not so much stressed about time, you know, but you have to stay on top of it. And, of course, on the track, every time we go on the track, it is all about the seconds and the fractions of a second that count.

I don't have a clue. These things don't bother me. I think about the technical stuff but not how many steps or what my heart rate is.

Every season something happens so I programme that in; something will happen.