Yes, I have been doing NORDIC OR SKI-WALKING for two years now; and I love it too; and as COUNTING says, they are great for hiking as well (very popular in Europe). The poles give me balance and strength so that I can walk much better in snow and sand (I have Spina Bifida and the related weak back issues; spine not closed).
$$$ ~ And you don't have to pay a fortune for good poles either; I got two pairs like new from our local second-hand shop during the winter season for only a buck a pair (got some for both Dh and myself). You can try goodwill, the Salvation Army, eBay, second-hand shops, or check out your local classifieds or run an ad: many people have them sitting around in their attics or basements collecting dust; and the money you will save will more than pay for the ad many times over.
ROSEBUD