Nordic walking involves walking with two lightweight poles that resemble ski poles. As you walk, you push the poles against the ground, maintaining a relaxed grip and using the straps to press down on the back swing. The more pressure you apply, the more your upper-body muscles will be engaged. Nordic walking has several benefits. Like conventional walking, it serves as an effective form of aerobic exercise, or cardio training, while using the poles helps to build your upper-body strength. Research shows that Nordic walking can be a safe and beneficial activity for both young adults and older people.