Your Fitness Tracker Is Lying to You (And Here's Why)
Zack Kelly is a performance coach and psychophysiologist who completed his master's research in heart rate variability. He breaks down what HRV actually measures, why wearable devices often get the interpretation wrong, and how to use fitness tracker data without letting it control your training or stress you out. Zack explains why high HRV isn't always good (it can signal your body fighting off illness), how blunted HRV responses show up in clinical populations from depression to eating disorders, and why movement in your HRV scores matters more than the absolute number. He covers force plate testing for injury prevention and asymmetry detection, the danger of overthinking recovery scores, and why one client won a tennis match despite a tanked Whoop score after being up all night with a newborn. This episode reveals how performance coaches actually interpret wearable data, why focusing on one variable at a time beats tracking everything, and how to build a healthy relationship with metrics without becoming obsessive. 🎧 Listen to the Totum Wellness Podcast: Spotify: https://open.spotify.com/show/2Ogcq7E... Apple Podcasts: https://podcasts.apple.com/ca/podcast... 🌟 Follow Us Online: Website: https://www.totumwellness.com Instagram:   / totumwellness  Facebook:   / totumwellness  Twitter:   / totumwellness  📺 Don't Forget to: 👍 Like this video 💬 Leave a comment 🔔 Subscribe to our channel for more insights About Totum Wellness Podcast: The Totum Wellness Podcast is your go-to source for inspiring conversations on health, fitness, and personal growth. Hosted by Tim and Stacy Irvine, we bring you expert insights and real-life stories to help you achieve a balanced and fulfilling lifestyle. #fitness #health #workout 00:00 - Intro 01:37 - What Is HRV and Why Does It Matter? 03:33 - Why High HRV Isn't Always Good 05:34 - Blunted HRV Response in Clinical Populations 07:46 - Addressing Asymmetries With Force Plate Testing 12:55 - The Danger of Over-Interpreting Data 19:05 - When to Actually Pay Attention to Your Numbers 22:56 - Understanding Zone 2 Training 28:00 - How to Use Wearables Without Obsessing 35:24 - Preparing for VO2 Max Testing 40:06 - What Performance Coaches Actually Track
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