core strength 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 The 5 best core exercises for hikers – expert tips on hiking efficiency We speak to an experienced physical therapist on why core strength matters for hiking, and how to get it 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 READ1Marathon final-place finisher’s video becomes inspirational internet sensation2Fjallraven Abisko Hike Trousers review: lightweight comfort for summer hikes and active travel3How did this Colorado peak just get demoted to the shortest 14er in the state?4"The bear probably had a pretty traumatic experience" – disturbing video shows people hauling cub out of tree for selfies5Friday 5: fell, mountain and ultra runner Nicky Spinks