# EP 99: Heart Rate Zone Training? Watch This Before You Rely on Your Running Watch Page: https://stenobird.com/podcast/the-hybrid-lab-with-dr-alyssa-olenick-2941020/ep-99-heart-rate-zone-training-watch-this-before-you-rely-on-your-running-watch Text version: https://stenobird.com/podcast/the-hybrid-lab-with-dr-alyssa-olenick-2941020/ep-99-heart-rate-zone-training-watch-this-before-you-rely-on-your-running-watch.md Podcast: [The Hybrid Lab with Dr. Alyssa Olenick](https://stenobird.com/podcast/the-hybrid-lab-with-dr-alyssa-olenick-2941020) Published: 2026-03-06T15:25:21+00:00 Episode link: https://podcasters.spotify.com/pod/show/the-hybrid-lab/episodes/EP-99-Heart-Rate-Zone-Training--Watch-This-Before-You-Rely-on-Your-Running-Watch-e3g1ng1 Audio file: https://traffic.megaphone.fm/APO8095267681.mp3 Processing state: not_requested JSON: https://stenobird.com/v1/public/podcasts/the-hybrid-lab-with-dr-alyssa-olenick-2941020/episodes/ep-99-heart-rate-zone-training-watch-this-before-you-rely-on-your-running-watch Duration seconds: 369 ## Resource 🔥 Get my free ZONES CALCULATOR & PhD-backed running tips here → https://bit.ly/4lYPHKK → This video is a podcast version of a full YouTube video! Watch it here on Spotify (video edition) or YouTube: https://youtu.be/Yl56Q6ZK4HU Get $20 off your first month with code PODCAST: → https://www.thelyssmethod.com/ Are you relying on your running watch for heart rate training? 👀 You might be getting inaccurate data! In this video, Dr. Alyssa breaks down the differences between optical heart rate sensors (like those in Garmin, Apple Watch, and Coros) and chest strap monitors. Learn how wrist-based HR monitors actually work, when they fail, and why chest straps are still the gold standard for accurate heart rate training. Whether you're training by heart rate zones, doing Zone 2 cardio, or looking to improve performance, this video will help you understand which device gives you the most reliable data for smarter training. TOPICS COVERED: - How optical heart rate sensors work - Why wrist-based monitors are often inaccurate - Benefits of chest strap HR monitors for runners and endurance athletes - Tips for getting the most accurate heart rate data during workouts Perfect for runners, cyclists, endurance athletes, and anyone training with heart rate. 📌 Don't forget to like, subscribe, and drop a comment if you’ve noticed differences between your watch and chest strap readings! 🤘🏻 TRAIN WITH ME HERE → https://www.thelyssmethod.com/programs 🤘🏻 FOLLOW ME ON IG → https://www.instagram.com/doclyssfitness/ 🤘🏻 LEARN MORE + FREE RESOURCES → https://doclyssfitness.com Time Stamps: 0:00 – Should You Use a Watch or Chest Strap? 0:07 – Intro: Why Accuracy Matters 0:25 – How Watches Measure Heart Rate 0:50 – Photoplethysmography Explained 1:35 – Why Wrist Sensors Are Less Accurate 2:10 – W… ## Actions - request_transcript: `POST https://stenobird.com/v1/public/podcasts/the-hybrid-lab-with-dr-alyssa-olenick-2941020/episodes/ep-99-heart-rate-zone-training-watch-this-before-you-rely-on-your-running-watch/transcription-requests` — Idempotently request low-priority transcript generation for this episode. - read_markdown: `GET https://stenobird.com/podcast/the-hybrid-lab-with-dr-alyssa-olenick-2941020/ep-99-heart-rate-zone-training-watch-this-before-you-rely-on-your-running-watch.md` — Read the agent-friendly Markdown representation of this episode resource. A page view does not enqueue transcription. Agents should invoke `request_transcript` explicitly when they need this episode processed. ## Transcript Full transcripts are not published on public pages unless there is a clear rights basis.