I hate it when my leg/butt muscles hurt, but I love it when my arms and pecs hurt
Im not sure why.
Weirdest thing that happened to me - and mind you, this was two years and at least 40 pounds ago -
I lived with my family in the country - gravel road kind of thing, barely see your neighbors. I wasn't comfortable walking or running, because cars tended to take the corners fast, the road was narrow, and there was no way for me to be seen.
So I would ride my bike. Around our "block" which was at least 2 miles. I went one day in the blasting heat, but it felt good to get the wind in my face rather than sit around the farm. I felt exhilirated after I got off the bike, but you know when you do a repetitive motion, when you stop you still feel it? That was me that day.
Anyway, I was hot, sweaty, and grimy, so I dashed up the stairs of our house and into a nice shower.
My leg muscles began to SEIZE! Both legs were cramping so bad I had to hit them with my hands. I'm a hockey player - I can lift over 450 pounds on a leg press machine...but this simple bike ride and my out of shape body (or was it the cold water? God knows!).
I literally had to pound the knots out of my thigh muscles as I stood there with water pouring over me. I never did that intense of a bike ride again, just because I was afraid of that moment