A lot has been made of the importance of the heart rate zone you train in. Mostly that zone 2 is good & that zone 3 is bad! A grey zone, which should be avoided. But why? What’s the reason for this? And should you avoid the grey zone when trying to improve your fitness levels? Mark is here to investigate! Useful Links Submit your Photo and Video to us 👉 https://gtn.io/UPLOAD Check out the GTN Shop 👉 https://gtn.io/TeamKit GTN Training Plans 👉 https://gcn.eu/gtntp Watch more on GTN… 📹 Why Is Everyone Talking About Zone 2?! 👉 • Why Is Everyone T… 📹 Watch our Editor’s Choice Playlist 👉 https://gtn.io/editorschoice 📹 Watch our weekly show, The GTN Show 👉 https://gtn.io/GTNshowPlaylist Photos: © Triathlon / Getty Images 🎵 Music – licensed by Epidemic Sound / Artlist 🎵 Ten Days – Dylan Sitts Still No Wifi – Dylan Sitts 368 – Jobii The Aftermath – Dylan Sitts #gtn#triathlon#swimbikerun#swim#bike#run#fitness#health The Global Triathlon Network (GTN) is the world’s biggest triathlon YouTube channel, with new videos every day! GTN is for anyone who loves triathlon: from seasoned triathletes to first-timers – and everyone in between! With the help of our former pro and Olympic medal-winning team, we’re here to inform, entertain and inspire you to become a better triathlete; including videos on: – How to swim, bike, and run faster with expert knowledge – Try our session ideas – Investigations into wide-ranging topics – The best triathlon bike tech and gear with pro-know-how – In-depth, entertaining features from the heart of the sport – Chat, opinion and interact with us across the channel and on social media! Join us on YouTube’s best triathlon channel to get closer to the sport and to become a better, faster and fitter triathlete! Welcome to the Global Triathlon Network. Thanks to our sponsors: Canyon bikes: http://gtn.io/canyon-bikes THEMAGIC5: https://gtn.io/TheMagic5 MET Helmets: https://gtn.io/MET ON Running: http://gtn.io/On-Running Orca: http://gtn.io/Orca Park Tool: http://gtn.io/parktool Precision Fuel & Hydration: https://gtn.io/PrecisionHydration Selle Italia: https://gtn.io/SelleItalia Trimtex: https://gtn.io/Trimtex Wahoo: https://gtn.io/Wahoo Zwift: http://gtn.io/zwift Watch our sister channels: Global Cycling Network – / gcn GCN Tech – / gcntech GCN Racing – / gcnracing GCN Italia – / gcnitalia GCN en Espanol – / gcnenespanol GCN auf Deutsch – / gcnaufdeutsch GCN en Francais – / gcnenfrancais GCN Japan – / gcnjapan GCN Training – / gcntraining Global Mountain Bike Network – / gmbn GMBN Racing – https://gmbn.eu/GMBNracing GMBN Tech – / gmbntech
