plank How to do a plank: improve your efficiency on the trail Plank is hands down the best exercise for your core, and can improve your endurance, strength and reduce injury risk, but only if you do it properly Advnture NewsletterAll the latest inspiration, tips and guides to help you plan your next Advnture!Contact me with news and offers from other Future brandsReceive email from us on behalf of our trusted partners or sponsors MOST READ1How did this Colorado peak just get demoted to the shortest 14er in the state?2"The bear probably had a pretty traumatic experience" – disturbing video shows people hauling cub out of tree for selfies3Friday 5: fell, mountain and ultra runner Nicky Spinks4Can you help find Sadie the hiking dog, missing on Appalachian Trail for 5 weeks?5The 12 worst things to take on a hiking trip