noun, noun or participle which takes 'suru'
going up and down; ascent and descent
Describes the action of moving up and down, such as climbing and descending stairs, hills, or slopes. Can be used as a noun or with する to mean 'to go up and down'.
山道の上がり下りで疲れた。
I got tired from going up and down the mountain path.
階段の上がり下りはいい
Going up and down stairs is good exercise.