[{"data":1,"prerenderedAt":118},["ShallowReactive",2],{"knowledge-metabolic-zones-en":3,"knowledge-list-en":80},{"_path":4,"_dir":5,"_draft":6,"_partial":6,"_locale":7,"title":8,"description":9,"related":10,"references":14,"body":23,"_type":74,"_id":75,"_source":76,"_file":77,"_stem":78,"_extension":79},"\u002Fen\u002Fknowledge\u002Fmetabolic-zones","knowledge",false,"","Metabolic Training Zones","From fat burning to VO2max - training with metabolic precision.",[11,12,13],"slow-endurance","training-problems","fatmax",[15,19],{"title":16,"url":17,"source":18},"Polarized training intensity distribution improves performance","https:\u002F\u002Fpubmed.ncbi.nlm.nih.gov\u002F24448618\u002F","Stöggl T, Sperlich B, Front Physiol 2014",{"title":20,"url":21,"source":22},"Ventilatory thresholds: concept and application in sport","https:\u002F\u002Fpubmed.ncbi.nlm.nih.gov\u002F20622542\u002F","Binder RK et al., Eur J Appl Physiol 2008",{"type":24,"children":25,"toc":68},"root",[26,34,41,46,52,57,63],{"type":27,"tag":28,"props":29,"children":30},"element","p",{},[31],{"type":32,"value":33},"text","Metabolic training zones are intensity ranges defined by physiological thresholds measured through spiroergometry. Unlike traditional heart rate zones or perceived exertion scales, metabolic zones are based on actual fuel utilization and ventilatory responses, making them the most precise way to structure endurance training.",{"type":27,"tag":35,"props":36,"children":38},"h2",{"id":37},"zone-definitions",[39],{"type":32,"value":40},"Zone definitions",{"type":27,"tag":28,"props":42,"children":43},{},[44],{"type":32,"value":45},"Zone 1 (Recovery): Below first ventilatory threshold (VT1), very low RER (0.70-0.80), almost entirely fat-fueled. Zone 2 (Endurance\u002FFatMax): Around FatMax intensity, RER 0.80-0.87, optimal fat oxidation. Zone 3 (Tempo): Between VT1 and second ventilatory threshold (VT2), RER 0.87-0.95, mixed fuel. Zone 4 (Threshold): At or near VT2, RER 0.95-1.00, predominantly carbohydrate. Zone 5 (VO2max): Above VT2, RER >1.00, maximal intensity.",{"type":27,"tag":35,"props":47,"children":49},{"id":48},"why-metabolic-zones-beat-heart-rate-zones",[50],{"type":32,"value":51},"Why metabolic zones beat heart rate zones",{"type":27,"tag":28,"props":53,"children":54},{},[55],{"type":32,"value":56},"Heart rate zones are estimates based on maximum heart rate formulas, which can vary by 10-20 bpm between individuals. Metabolic zones are measured directly from your body's physiological response. Two athletes with the same max heart rate may have vastly different FatMax zones. Only metabolic testing reveals your personal thresholds and the corresponding heart rate and power values for each zone.",{"type":27,"tag":35,"props":58,"children":60},{"id":59},"applying-zones-to-training",[61],{"type":32,"value":62},"Applying zones to training",{"type":27,"tag":28,"props":64,"children":65},{},[66],{"type":32,"value":67},"A well-structured endurance training plan uses metabolic zones to ensure the right stimulus. The 80\u002F20 principle suggests 80% of training volume should be in Zones 1-2 (below VT1) and 20% in Zones 3-5. OpenSpiro maps your metabolic thresholds to heart rate and power ranges, so you can execute zone-based training with any bike computer or watch after a single test session.",{"title":7,"searchDepth":69,"depth":69,"links":70},2,[71,72,73],{"id":37,"depth":69,"text":40},{"id":48,"depth":69,"text":51},{"id":59,"depth":69,"text":62},"markdown","content:en:knowledge:metabolic-zones.md","content","en\u002Fknowledge\u002Fmetabolic-zones.md","en\u002Fknowledge\u002Fmetabolic-zones","md",[81,85,89,90,94,98,102,106,110,114],{"_path":82,"title":83,"description":84},"\u002Fen\u002Fknowledge\u002Fdiesel-vs-sprinter","Diesel vs. Sprinter — Two Athlete Types, One Test","Some athletes burn fat efficiently at high intensities. Others depend on carbs from the start. A metabolic test reveals which type you are — and how to train accordingly.",{"_path":86,"title":87,"description":88},"\u002Fen\u002Fknowledge\u002Ffatmax","FatMax - Maximum Fat Oxidation","Finding the intensity where your body burns the most fat.",{"_path":4,"title":8,"description":9},{"_path":91,"title":92,"description":93},"\u002Fen\u002Fknowledge\u002Fpower-meter","Power Meter Integration in Metabolic Testing","Why power data is essential for accurate metabolic analysis.",{"_path":95,"title":96,"description":97},"\u002Fen\u002Fknowledge\u002Frer","RER - Respiratory Exchange Ratio","The metabolic fingerprint that reveals your fuel mix.",{"_path":99,"title":100,"description":101},"\u002Fen\u002Fknowledge\u002Fslow-endurance","Why Slow Endurance Training Makes You Faster","The science behind long, slow distance training. Why 80% of your training should feel too easy - and how to find the right intensity.",{"_path":103,"title":104,"description":105},"\u002Fen\u002Fknowledge\u002Fspiroergometry","Best Practices for Spiroergometry","Where to get a spiroergometry test, what it costs, how to prepare, and how to do it yourself with portable equipment.",{"_path":107,"title":108,"description":109},"\u002Fen\u002Fknowledge\u002Ftraining-problems","Common Problems from Training in the Wrong Zones","Achilles tendon pain, chronic fatigue, stagnating performance - often caused by wrong training intensity.",{"_path":111,"title":112,"description":113},"\u002Fen\u002Fknowledge\u002Fvo2max","VO2max - Maximum Oxygen Uptake","The gold standard of cardiorespiratory fitness.",{"_path":115,"title":116,"description":117},"\u002Fen\u002Fknowledge\u002Fwhy-vo2-testing","Why VO2 Testing — What Your Watch Can't Tell You","Heart rate zones are guesses. VO2 testing shows what's actually happening inside your body. Here's why it matters for every endurance athlete.",1776594391333]