By Michael Lanza
One of the most immutable truisms about hiking is this: Backpackers, dayhikers, climbers, mountain runners, and others who start using trekking poles almost never hit the trail without them again. No matter how much weight you’re carrying—from an ultralight daypack or running vest to a godawful heavy monster backpack—using poles will lessen your chances of an accidental fall and your leg muscles and joints, feet, back, and body will all feel better, thanks to the reduced strain, fatigue, and impact on them.