hill-climbing

Walking, running, and hill climbing are all excellent, but do not in themselves suffice to develop the chest to the utmost.

Except during the moments of hill-climbing, it is so easy to send the machine spinning along.

If too much wheeling on the level road is bad, too much hill-climbing is ten times worse.

Climbers who become ill through mountain-climbing would also become ill in hill-climbing.

This worked very nicely for a time until it became dark and the hill climbing act began.