What is it? A fusion of Nordic walking and Pilates, Pole-zing involves power-walking in groups with ski-type poles and performing toning and strengthening exercises. It is the brainchild of personal trainer Corinne Thompson, who says the 90-minute classes transport the best elements of a gym session to the great outdoors. So popular is it that there are now Pole-zing trainers taking sessions around the country.

Embarrassment factor

High. It is best suited to a secluded woodland trail, where few will see you stretching, squatting and lunging while lifting the poles above your head.

Is it worth looking silly for?

Yes. In studies at the University of Wisconsin in the US, Professor John Pocari, an exercise physiologist, found that using walking poles forces people to pick up their pace and work harder. Participants in his studies increased their upper body strength by 40%. There was also 26% less impact on vulnerable hips, ankles and knees than with running. On average, they burned around 420 calories an hour, a fifth more than those who walked without poles. Other studies have shown that the heart rates of Nordic walkers reach up to 75% of their maximum, so you get a tough aerobic workout. The addition of the strengthening exercises in Pole-zing tests the muscles and cardio- vascular system to the full.

Anything else?

If you like the idea of training with poles, you could try Nordic Blading, an activity performed on in-line skates. Its movements simulate cross-country skiing - the toughest of all forms of exercise - so it burns even more calories.

The expert's view

"It's a great idea because it uses 90% of the body's skeletal muscles," says fitness expert Lucy Knight. "Because the spine rotates as your poles swing, it increases mobility of the spinal discs reducing neck and shoulder pain. For people with vulnerable knees, it is also a great alternative to running."

Final verdict

Not for shrinking violets. Pole-zing.com