Question 340 of 433
Can a special bike make me fit in a few minutes a week?
The short answer
In selected participants, very short sprint protocols improve fitness. It is a supplement to regular activity, not a replacement.
The method is called reduced-exertion high-intensity training: two 20-second maximal sprints inside a ride of under ten minutes. In a small eight-week trial, it raised VO2 max by about 12 percent, more than half an hour of moderate cardio five days a week. The studies are small and short. Only suitable equipment and a safe, individualized protocol should be used; an all-out sprint is not appropriate for every person or bike. Because the sprints are truly maximal, people with heart disease or risk factors should be cleared first.
“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
SMALL HUMAN TRIALS — Suitable adults: sprint protocols improve fitness; the bike itself has no established longevity advantage.Evidence grade (draft mapping)BLimited or small human studiesPart 22, Q340 · 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.