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How to Choose Your Heart Rate Variability (HRV) Calculation Method

This article provides step-by-step instructions on how to select your preferred calculation method for Heart Rate Variability (HRV) within the app. Choosing the appropriate method ensures your recovery and readiness metrics are calculated accurately based on your preference.

  1. From the Today screen, tap your profile picture in the top-right corner.
  2. On the profile screen, tap Settings.
  3. Under the GENERAL section, tap HRV Method.
  4. In the pop-up window, select either RMSSD (Preferred) or SDNN (Apple Health method used in Vitals). Your choice is saved automatically.
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Understanding the Methods

The RMSSD method is widely recognized as one of the most accurate ways to track the impact of training load and short-term recovery. The SDNN method is considered the gold standard for medical stratification of cardiac risk. For most athletic training purposes, RMSSD is the preferred method.

Summary

This article explains how to change the calculation method for your Heart Rate Variability (HRV). Adjusting this setting allows you to align the app's data processing with your personal tracking preferences, ensuring your recovery insights are based on the scientific standard that best suits your goals.

Related

  • Monitor your Heart Rate Variability (HRV)
  • Manage your personal and fitness details
  • Change general app settings (Units, Energy, Start of Week)
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