Norbury hit her head on the club's bitumen courts competing for a ball against Mangoplah-Cookardinia United Eastlakes on June 22 and missed the following week's game at Griffith, where the Demons suffered their sole loss of the year.

After a bye the next week she returned for Saturday's win over Leeton, but was required to pass a baseline test after the squad completed it alongside their Aussie Rules counterparts during the pre-season.

The defender lost her feet competing for a ball with Goannas rival Sophie Fawns and her head hit the court hard.

"This is the first time I've ever had to do it (pre season test) and I've been playing netball for 20 years now," Norbury said.

"The footballers had to sit down and do it, so it was easy to get the netballers in. It's the first of its kind as far as I know in netball.

"You look at cards and different colours and it's based on your reaction time.

Concussions are obviously far rarer in netball, but Norbury said the increased recent awareness and exposure of the issue has ensured players take it seriously.

"Our sport isn't technically contact, it (concussion) isn't in the back of your mind the way it is with footballers," Norbury said.

"But the way the game's being played now, it's faster and harder and stronger than ever, you're quite likely to have a few knocks here and there.

"I've definitely had concussions before playing netball, but never did anything about it or sought treatment. This time was much better and makes you more aware.

"I've had a few headaches here or there and had a migraine after the game on Saturday, so it makes you aware of treating that and not pushing it to the side and forgetting about it.

" I don't know whether it (headache) was from a cold but it makes you aware if it sticks around to have a look into it."

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