Between the ages of 17 and 22 I didn't even own a pair of trainers. When I visited a friend and she had Kung Fu class, she invited me to join in, but I put a mental block on it and refused to see myself doing it. Aged about 22, I don't remember why but I bought a pair of trainers and some jogging bottoms and joined the gym at the local leisure centre. That lasted about three years, on and off, maybe once every two months on average over the whole period. Then I broke my finger and didn't get back into it once I recovered. I still have that same pair of trainers and they look pretty new. Since I stopped going to the gym I reckon I've worn them about ten times (for football or squash). I went jogging on Hove seafront once, for about 300 metres.
I'm not inactive - I've played tenpin bowling weekly since I was 11, with only about four years off in that time. I also went out dancing a lot during uni. And I never once got a car or bus to school, ever.
But that's not very active for someone in a Sports Science department. Most other people here either are or were competitive in the Athletics Union, trained to be a PE teacher, or they jog, swim, play football, etc. regularly. Not me, despite studying young people's constructions of status in physical activity. I think I keep guiding my research towards answering a few of my own questions about my own relationship with activity - why was/is it irrelevant to me?