doping Researchers have been quietly collecting urine samples at ultramarathons to study drug use – here's what they found The purpose of the study was to compare the methods of sampling against questionnaires to gather data “I’m utterly bewildered" – trail running world champ denies doping allegations after positive test Norway's Stian Angermund says he has no idea how he could have tested positive for banned substances 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 LATEST ARTICLES1The best trail shoes for ultra runners 2024: these robust and comfy rides are built for serious outdoor adventures2La Sportiva Mythos climbing shoes review: a multi-pitch legend3I’m a keen year-round outdoor swimmer – here’s how I update my wild swimming kit for winter4MSR Hubba NX tent review: a high-performing 3-season backpacking tent5New Year's resolutions for every runner: 7 new habits to try and how to stick to them
