It is the same movement as cross country skiing.
I bought an inexpensive "telescoping" pair, so they would be easy to take in the car, and my only complaint is that they tend to telescope (slide smaller) while walking. I have trouble getting the joints tight enough not to slip within an hour or two, but my husband can.
Maybe if I'd spent a little more????
Anyway, you might want to check that feature.
“The only way to keep your health is to eat what you don't want, drink what you don't like, and do what you'd rather not.”
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