Thank you both for your replies.

Dr Damien - Yes I mean normal relaxed ideal anatomic standing. I already knew that I didn't use my glutes enough when walking (though I was over using my calfs by pushing off with my ankle more than anything) and have been working to correct this and strengthning my glutes. I have always had tight hamstring despite following various stretching protocals for extended periods of time. So I thought that I must be overusing my hamstrings but not sure when. Thats why I asked whether you could use them dysfunctionally as a stabiliser.

Again thanks for any replies.