![]() ![]() Sleep Tracker with All Three Sleep ClassesĮmfit QS sleep tracker can tell you how much light, deep, and REM sleep you get each night. Sleep-tracker-all-three-sleep-classes-emfit-qs In this sense, our RMSSD graph can be used to optimize both the training schedule and load. If the morning value is high, you are fully recovered and ready for another heavy exercise. If the evening value is low, you know that training day was effective. Heavy training lowers the RMSSD value, and recovery raises it. HRV, and to be more exact, so called RMSSD value, can be used to monitor both daily training load, and nocturnal recovery. Science of Heart-Rate- Variability during sleep ![]() Long-term evaluation of HRV will determine how effectively your exercise or lifestyle changes are affecting your wellness.Įmfit QS uses either Wi-Fi or Cellular Mobile Data (3G). RMSSD data allows you to optimize your training schedule according to actual body requirements, helping you avoid overtraining and giving you a peak performance at the office too. The Evening RMSSD value shows accumulated load over the day, and Morning RMSSD provides recovery status and readiness for a new day. Tracking Heart-Rate-Variability throughout the night will give you a detailed picture of progression of your recovery during the night. My plan is to produce a longer term review in the coming months, where I hope to compare this device to some of the lesser expensive means of measuring HRV, such as HRV4Training, and whether the data is reliable, consistent, and if the convenience of passive measurements makes it a worthy and helpful choice for measuring recovery metrics.Your heart shows your recovery and readiness The associated web interface is simple to use and provides many options to analyze the various metrics but is not yet capable of exporting data to platforms such as Trainingpeaks or SportsTracks. Requiring a person to wear a device, or to take a measurement daily, often results in user non-compliance, or irregular testing, which can lead to faulty deductions when attempting to analyze data trends. Most recovery oriented devices on the market today require users to either put on a heart rate strap, or measure optically, upon awakening each morning, or require the wearing of a monitor throughout the day or night. Once the hub is connected, there are indicator lights to show the system is active, and when it is in an operating mode. The set-up process took about 10 minutes, however if using WPS network, or 5Ghz WiFi, it might take longer. The device is then paired to the user’s wireless network via a unique device ID and it is ready allowing the hub to transmit data wirelessly to EMFIT servers. The EMFIT QS obtains the data using ballistocardiography via a hub and belt that is placed underneath the user’s side of the mattress, or mattress pad/protector, and then plugged into a power outlet. No more wearing a heart rate strap to bed. The feature that distinguishes the EMFIT QS from other devices measuring HRV or recovery metrics is that it obtains all this data unobtrusively, while sleeping. The EMFIT operating system lets users analyze the various metrics via their web interface in several data increments including: 7, 14, 30, 60, and 90 days, or custom ranges. The EMFIT QS measures full night HRV, heart rate and breathing rate, movement during sleep, along with some derivative metrics such as phases of sleep, autonomic nervous system balance, sleep score, and HRV recovery. HRV trends may neatly predict overtraining or lack of recovery, key markers for endurance athletes. Research indicates that lower HRV values are correlated with the central nervous system still in a state of recovery from a stress (i.e., exercise). Briefly, HRV is the variation in time between heartbeats. The EMFIT QS is a non-intrusive device that allows users to collect and analyze several trends in established markers of recovery such as heart rate variability (HRV). While my long-term testing is a long way from conclusive, I have been pleasantly surprised with the initial results. The EMFIT QS is a next generation device attempting to optimizing sports performance. It’s the data geek’s dream device (pun intended, as you’ll see below) tracking recovery and sleep metrics.
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