I am primarily a cyclist, and just turned 40. I have noticed the same shift to the middle, although happy about the smaller thigh saddle bags. I started training for tri's, and the running and swimming have helped, everything. I also discovered planks, a core exercise that doesn't take long and kicks ***. Basically, assume the push up position, but get on your forearms. Standing on your toes and forearms, just hold it. Keep you body as flat as you can. Trust me when I say you will feel it. I hope that helps.