Bigtex
VIP Member
- Aug 14, 2012
- 1,417
- 2,166
I have gotten very interested in these technological advances in fitness watches. The latest that has come out is the Readiness Score. The Fitbit Readiness Score is a feature designed to help users gauge how prepared their body is for physical activity on a given day. It takes into account several metrics derived from Fitbit's health and fitness data to provide personalized recommendations. Most of this data is taken while you sleep at night so it is very important to wear your watch while you sleep.
The score compares your recent activity, sleep and heart rate variability (HRV) levels against your personal baseline. So the longer you wear your fitness watch, the more accurate it is. I have about 4 years worth the date on mine so the accuracy based on how I feel is very realistic.
First off Fitbit uses you daily Heart Rate Variability (HRV). HRV is the variation in the time interval between consecutive heartbeat. Higher HRV indicates better cardiovascular function and stress resilience. It also usually indicates that your body is well-recovered and ready for activity. A lower HRV might suggest stress, fatigue, or insufficient recovery.
Resting Heart Rate (RHR): A lower RHR generally signals good recovery and fitness. An elevated RHR compared to your baseline might indicate stress, fatigue, or illness.
Sleep Quality and Duration: The score considers how much sleep you got, the duration of each sleep stage (REM, deep, light), and overall sleep efficiency. So obviously the higher your sleep score the better you recovery.
Activity Levels: Data on recent physical activity (e.g., workouts, steps) is factored in. Overtraining or high-intensity workouts without recovery time can lower the score. High intensity workouts can definitely effect the score but sleep quality and diet can help lower the effects of intensity and insure you recovery better. As part of your circadian rhythm, your body temperature naturally decreases in the evening and during sleep. This drop signals the body that it's time to rest and facilitates deeper sleep stages, which are crucial for recovery. Elevated body temperatures (e.g., due to a hot room, heavy bedding, or fever) can make it harder to fall asleep and reduce the time spent in deep sleep stages like slow-wave sleep (SWS) and REM sleep. Both stages are essential for physical and mental recovery
Recovery Metrics: Devices often monitor metrics like respiratory rate, body temperature, or blood oxygen levels, which can indicate how well your body is recovering. So the slower your respiration rate is while you sleep and the higher your SPO2 is the better you recover.
This is very cool stuff. We use to do something similar when I powerlifted taking HR at bedtime and HR when you wake. If the HR is slower than bed time you are recovering well. If it is faster you may be over trained. This date here that is collected as you sleep is very accurate stuff. I have noticed on the day where I score Good or better, I do have a pretty good day in the gym. I have had a couple of Poor scores and it was more of a struggle to get the job done. Another poor day and I did not feel like going to the gym at all and skipped.
The score compares your recent activity, sleep and heart rate variability (HRV) levels against your personal baseline. So the longer you wear your fitness watch, the more accurate it is. I have about 4 years worth the date on mine so the accuracy based on how I feel is very realistic.
First off Fitbit uses you daily Heart Rate Variability (HRV). HRV is the variation in the time interval between consecutive heartbeat. Higher HRV indicates better cardiovascular function and stress resilience. It also usually indicates that your body is well-recovered and ready for activity. A lower HRV might suggest stress, fatigue, or insufficient recovery.
Resting Heart Rate (RHR): A lower RHR generally signals good recovery and fitness. An elevated RHR compared to your baseline might indicate stress, fatigue, or illness.
Sleep Quality and Duration: The score considers how much sleep you got, the duration of each sleep stage (REM, deep, light), and overall sleep efficiency. So obviously the higher your sleep score the better you recovery.
Activity Levels: Data on recent physical activity (e.g., workouts, steps) is factored in. Overtraining or high-intensity workouts without recovery time can lower the score. High intensity workouts can definitely effect the score but sleep quality and diet can help lower the effects of intensity and insure you recovery better. As part of your circadian rhythm, your body temperature naturally decreases in the evening and during sleep. This drop signals the body that it's time to rest and facilitates deeper sleep stages, which are crucial for recovery. Elevated body temperatures (e.g., due to a hot room, heavy bedding, or fever) can make it harder to fall asleep and reduce the time spent in deep sleep stages like slow-wave sleep (SWS) and REM sleep. Both stages are essential for physical and mental recovery
Recovery Metrics: Devices often monitor metrics like respiratory rate, body temperature, or blood oxygen levels, which can indicate how well your body is recovering. So the slower your respiration rate is while you sleep and the higher your SPO2 is the better you recover.
This is very cool stuff. We use to do something similar when I powerlifted taking HR at bedtime and HR when you wake. If the HR is slower than bed time you are recovering well. If it is faster you may be over trained. This date here that is collected as you sleep is very accurate stuff. I have noticed on the day where I score Good or better, I do have a pretty good day in the gym. I have had a couple of Poor scores and it was more of a struggle to get the job done. Another poor day and I did not feel like going to the gym at all and skipped.