[{"data":1,"prerenderedAt":190},["ShallowReactive",2],{"content:\u002Fen\u002Fblog\u002Fthe-norwegian-4x4-method-is-now-available-on-kindle":3},{"id":4,"title":5,"alternate":6,"blogIndex":9,"body":10,"canonical":9,"description":174,"excludeFromBlogIndex":175,"extension":176,"heroBadges":9,"heroBody":177,"heroCta":9,"heroImage":140,"heroImageAlt":5,"heroImageObjectPosition":178,"heroImagePresentation":9,"heroSubtitle":9,"heroTitle":5,"heroTitleClass":9,"images":179,"language":180,"layoutIntent":181,"meta":182,"navigation":184,"noindex":175,"ogImage":9,"path":185,"publishedAt":9,"readingTime":9,"sections":9,"seo":186,"stem":187,"tag":188,"topics":9,"webflowCollection":9,"webflowItemId":9,"webflowSource":9,"__hash__":189},"pages\u002Fen\u002Fblog\u002Fthe-norwegian-4x4-method-is-now-available-on-kindle.md","The Norwegian 4x4 Method Is Now Available on Kindle",{"en":7,"nb-NO":8},"https:\u002F\u002Fwww.myworkout.com\u002Fen\u002Fblog\u002Fthe-norwegian-4x4-method-is-now-available-on-kindle","https:\u002F\u002Fwww.myworkout.com\u002Fno",null,{"type":11,"value":12,"toc":165},"minimark",[13,17,25,33,36,70,73,76,83,86,93,96,102,105,111,118,121,127,134,137,160],[14,15,16],"p",{},"The Norwegian 4x4 Method: Science, History and Practice from its Creators, written by professors Jan Helgerud and Jan Hoff together with Øystein Lie, offers a rare inside look into the method that has influenced both elite sports and modern preventive medicine.\nFor the first time, international readers can dive into the story of how a simple idea — four intervals of four minutes — became one of the most effective ways to improve both health and performance.",[18,19,21],"h2",{"id":20},"from-a-research-lab-in-trondheim-to-the-worlds-biggest-arenas",[22,23,24],"strong",{},"From a Research Lab in Trondheim to the World’s Biggest Arenas",[14,26,27,28,32],{},"This book tells the story of two researchers determined to understand what truly improves the heart and body. Their findings led to what we now know as the ",[29,30,31],"em",{},"Norwegian 4x4 method",".",[14,34,35],{},"The method has shaped the training of:",[37,38,39,46,56],"ul",{},[40,41,42,43],"li",{},"Olympic champion ",[22,44,45],{},"Marit Bjørgen",[40,47,48,49,52,53],{},"Global football stars like ",[22,50,51],{},"Cristiano Ronaldo"," and ",[22,54,55],{},"Lionel Messi",[40,57,58,59,62,63,66,67],{},"Top clubs such as ",[22,60,61],{},"Celtic",", ",[22,64,65],{},"Real Madrid",", and ",[22,68,69],{},"Barcelona",[14,71,72],{},"But perhaps the most meaningful impact came outside elite sports. Over the past two decades, Helgerud and Hoff have shown how high-intensity training can improve health and longevity for patients with heart disease, stroke, COPD, MS, and several lifestyle diseases.",[14,74,75],{},"This research is the foundation Myworkout is built on — and the reason we believe exercise can be a powerful form of medicine.",[77,78,80],"h3",{"id":79},"what-youll-find-in-the-book",[22,81,82],{},"What You’ll Find in the Book",[14,84,85],{},"The Kindle edition brings together:",[87,88,90],"h4",{"id":89},"_1-the-science",[22,91,92],{},"1. The Science",[14,94,95],{},"A clear explanation of why high-intensity intervals — especially the 4x4 protocol — are so effective for improving VO₂max and overall health.",[87,97,99],{"id":98},"_2-the-story",[22,100,101],{},"2. The Story",[14,103,104],{},"How two professors from Trondheim, Norway, developed a method that transformed both athletic training and medical rehabilitation.",[87,106,108],{"id":107},"_3-the-practice",[22,109,110],{},"3. The Practice",[14,112,113,114,117],{},"A 12-week endurance and strength program suitable for ",[29,115,116],{},"everyone"," — from beginners and patients to elite athletes.",[14,119,120],{},"This is more than a training guide. It’s a piece of modern exercise science history.",[77,122,124],{"id":123},"why-this-matters",[22,125,126],{},"Why This Matters",[14,128,129,130,133],{},"Our app is built directly on the research and methods described in this book.\nWith Myworkout, you can measure your VO₂max and biological age with a margin of error of just ",[22,131,132],{},"4.5%","— and 4x4 remains at the heart of our approach in the app, in clinics, and in our training centers.",[14,135,136],{},"Having the book available on Kindle means more people can understand the science behind what we do, and why it works so well.",[138,139,141,148,151],"interval-book-callout",{"imageId":140},"webflow-692458769b979cf5b3a295c8-bok-20forside-20grandfinale-20250925-20helgerud-20og-20hoff-4x4-eng-v3-f60f32407961",[142,143,145],"h1",{"id":144},"read-the-book-and-try-the-method-yourself",[22,146,147],{},"Read the Book – and Try the Method Yourself",[14,149,150],{},"Ready to dive into the history and science behind the Norwegian 4x4 method?",[14,152,153],{},[154,155,159],"a",{"href":156,"rel":157},"https:\u002F\u002Fwww.amazon.com\u002FNorwegian-4x4-Method-PRACTICE-CREATORS-ebook\u002Fdp\u002FB0G3HPNQLM\u002Fref=sr_1_11?crid=I2U310A14WJK&dib=eyJ2IjoiMSJ9.jlbC0AlI18q4kW1jhcXCA_3fVrdMxmRzohhAZLOErLdPMdKtQ1xo8qlV9iW8p0URVFac3QwL98buaI_zrzZvGpP1YQ2EIYdGwWFpTOe7LdFbqjJ3N0tN_qOS8MfXBCyxthVIWAs9AVUZOOdOvKnVPtr8g-Wr9WpGSCBrVqOiitSn_7nOSdGFGzHIrWs9VH6i2qVepi58XxsbgzVo6x6jbYGZkJ4YG_FRlYc70NC3UYQ.LaJHqXYCTdmdBNg9wxtrnm5VN_7XHVgtmfa4JUMOTfc&dib_tag=se&keywords=norwegian+method&qid=1763971021&s=books&sprefix=norwegian+metho%2Cstripbooks-intl-ship%2C256&sr=1-11",[158],"nofollow","Buy the Book on Kindle",[161,162],"app-download-cta",{"body":163,"title":164},"Track your 4x4 intervals, measure your VO₂max, and discover your biological age — all based on the research covered in this book.","Want to experience the method in practice?",{"title":166,"searchDepth":167,"depth":167,"links":168},"",2,[169],{"id":20,"depth":167,"text":24,"children":170},[171,173],{"id":79,"depth":172,"text":82},3,{"id":123,"depth":172,"text":126},"We're excited to share an important update: the story and science behind the training method that forms the foundation of the Myworkout app is now.",false,"md","We’re excited to share an important update: the story and science behind the training method that forms the foundation of the Myworkout app is now available to readers worldwide.","50% 0%",[140],"en","Imported from Webflow CMS as a public content page.",{"seoStatus":183},"migrated",true,"\u002Fen\u002Fblog\u002Fthe-norwegian-4x4-method-is-now-available-on-kindle",{"title":5,"description":174},"en\u002Fblog\u002Fthe-norwegian-4x4-method-is-now-available-on-kindle","announcements","vXNEzgd_abC2ycL51WV4NiUdziSOHSXyBNhrtT3NNik",1783582682894]