Walking examination

Yes. I do remember having to walk back and forth at the doctor's office in my underwear as an early teen (Maybe 13 to 15 year old). I think I was being checked for posture and maybe scoliosis. I also remember having special scoliosis exams once a year in middle school. It was done during gym class in the gym. We were in our regular gym uniforms and just had to take off our shirts. The boys were done separately from the girls. I think there were a couple of nurses doing it. I have not had any kind of a walking exam or scoliosis check since my early teens.

I remember having to bend over to check

Yes, I had to do this at both the pediatrician and at the family doctor in high school and college.

I recall having to do this during an exam in Junior High School. The whole boy's gym class was examined in the gym during a regular class, all wearing our gym shorts and jockstraps but with our T-shirts off.