Question 92 of 433
Do I really need high-intensity intervals?
The short answer
A small dose once a week is the most efficient way to raise VO2 max. It is helpful, not mandatory.
A proven format is four minutes hard, three minutes easy, repeated four times. “Hard” means breathing heavily and unable to say more than a few words. If you have heart disease or have been inactive, get cleared first and build up over months. Most of your training, about 80 percent, should still be easy.
“This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship.” From the book’s medical disclaimer. Full disclaimer
ROBUST HUMAN TRIALS — Suitable adults: intervals improve cardiorespiratory fitness; not necessary or safe for everyone at every dose.Evidence grade (draft mapping)ARobust human trialsPart 6, Q92 · Part sources
From Longevity Unmasked by Afshine Ash Emrani, MD, FACC. Medical disclaimer. This book is for education. It is not medical advice, and reading it does not make you my patient or create a doctor-patient relationship. Nothing here is meant to diagnose, treat, cure, or prevent any disease. Medicine is personal: a test, drug, supplement, or exercise plan that helps one person can harm another. Do not start, stop, or change any medication or treatment because of something you read in these pages. Talk with a licensed clinician who knows your history first. If you think you are having a medical emergency, call 911. The author disclaims responsibility for any loss or harm arising from use of the information in this book.