Usain Bolt has congratulated his team-mate and training partner Yohan Blake on his victory in the 100m final at the World Championships. But the athletics community is buzzing with debate about whether it was Blake himself who was partly to blame for Bolt's false-start.

Slow-motion replays of the start of the race show how Blake's left leg twitched in the instant before Bolt pushed off from the blocks. Some commentators have suggested that Blake himself could, and maybe should, have been disqualified. The IAAF rules state that once the athletes are in the "set" position, they must not move, and Blake's leg clearly twitched. It was that rule which caused Dwain Chambers to be disqualified in his semi-final. Also, the rules state that if any athlete distracts another on the start line, the start of the race should be aborted. It is being argued by some that Bolt was only responding to Blake's twitch, but was so focused on his race that he was oblivious to it.

"Firstly I would like to congratulate my team mate Yohan Blake and the other athletes who won the medals," Bolt said on Monday. "Of course I am extremely disappointed not to have had the chance to defend my title due to the false start. I was feeling great through the rounds and was ready to run fast in the final. I worked very hard to get ready for this championships and things were looking good."

Bolt confirmed that he will run in the heats of the 200m on Friday. "However I have to move on now as there is no point dwelling in the past. I have a few days to refocus and get ready for the 200m. After this I have the 4x100m and a few other races before the end of the season. I know that I am in good shape and will focus on running well in the 200m."

Did Yohan Blake trigger Usain Bolt's false start by twitching in the blocks? And should he have been disqualified? Judge for yourself …