Insights

Daily Readiness

Primarily using key heart rate and heart rate variability (HRV) metrics, the Daily Readiness is a daily morning score that quantifies the user's ability (readiness) to handle the day’s challenges based on their body’s cumulative stress load and recovery status.
This insight automatically help users optimize their daily behavior to achieve better long-term results.﻿
The Daily Readiness and ANS Balance﻿  insights require at least two days of data in order to be calculated. If it's the first day recording a daily reading, the output value for both of these insights will be null. See the input requirements and output table below for more details!
Input Requirements
If you're using your own device or an external device to connect to Spren API, follow the input requirements below. If you're using Spren Vision to connect to Spren API, you will just pass along the readingData object from the SDK directly to Spren API. See more information in the Spren API Overview.
Input
Data Type
Description
ibi
array of int
An array for inter-beat intervals; at minimum, 60 inter-beat (R-R) intervals are required.
Input Requirements
Example Input JSON
Recommendations for increased accuracy
﻿
JSON
{
    "ibi": [
        1096,
        1056,
        1040,
        1052,
        994,
        959,
        931,
        910,
        887,
        867,
        871,
        920,
        1259,
        1188,
        1180,
        1142,
        1113,
        1052,
        999,
        976,
        978,
        973,
        978,
        951,
        957,
        998,
        1037,
        1052,
        1020,
        986,
        1025,
        1039,
        1039,
        1003,
        959,
        969,
        991,
        981,
        968,
        945,
        983,
        1042,
        1061,
        977,
        956,
        965,
        971,
        983,
        959,
        966,
        972,
        970,
        947,
        944,
        972,
        984,
        949,
        915,
        957,
        959
    ]
}    
{
    "ibi": [
        1096,
        1056,
        1040,
        1052,
        994,
        959,
        931,
        910,
        887,
        867,
        871,
        920,
        1259,
        1188,
        1180,
        1142,
        1113,
        1052,
        999,
        976,
        978,
        973,
        978,
        951,
        957,
        998,
        1037,
        1052,
        1020,
        986,
        1025,
        1039,
        1039,
        1003,
        959,
        969,
        991,
        981,
        968,
        945,
        983,
        1042,
        1061,
        977,
        956,
        965,
        971,
        983,
        959,
        966,
        972,
        970,
        947,
        944,
        972,
        984,
        949,
        915,
        957,
        959
    ]
}    
﻿
Minimum 60 inter-beat intervals (R-R intervals)
Measurement was taken "at rest," not during exercise nor during a stressful period
No more than one missing inter-beat interval per 60 seconds of data
No more than one major artifact from movement or sensor disruption per 60 seconds of data
A minimum of 50Hz sampling rate for PPG signals or 250Hz sampling rate for ECG signals
Note: If you are using the Spren Vision SDK to collect the measurement data, then these additional recommendations 
Outputs
Daily Readiness is returned as a part of the output response JSON, with the key readiness. The output is a 1-10 integer scores for readiness that corresponds with a low, medium, or high readiness/recovery definition. Some definitions and examples are outlined in the below table.
Output
Definition
Data Type
Example Color Indicators
Example User Text
null
Insufficient data
None
Grey
Come back tomorrow after collecting additional data to unlock your daily readiness guidance!
1 - 3
Low
int
Red
Prioritize recovery-promoting activities today. Avoid pushing your physical or mental limits if possible.
4 - 6
Medium
int
Yellow
Consider reducing stressful activities today. If you decide to push harder, then stay extra aware of recovery needs for the next few days.
7 - 10
High
int
Green
You should be able to handle more stress and activity today!
﻿
Design Examples
The most common display of the Daily Readiness score is using a gauge, although the Readiness score display is completely customizable to match the branding and user experience goal of your app.
Examples of Readiness scores in an app card for a fitness-oriented app.
﻿
Example text for an in-app tooltip or information drawer to provide user education about the Readiness Score:
﻿
Your Readiness Score is a personalized daily score that quantifies your ability (readiness) to handle the day’s challenges based on your body’s cumulative stress load and recovery status.
﻿
This 1-10 score uses key heart rate and heart rate variability (HRV) metrics to learn your personal patterns and quantify how your body is adapting to things like exercise, stress, nutrition, work, and more. It helps you understand when your body is ready to perform and when you need to focus on rest and recovery.
7-10: Optimal, you are ready to handle more challenges today!
4-6: Not ideal, consider reducing stressful activities today.
1-3: You are not fully recovered. Prioritize recovery-promoting activities.
﻿

Input	Data Type	Description
ibi	array of int	An array for inter-beat intervals; at minimum, 60 inter-beat (R-R) intervals are required.

Output	Definition	Data Type	Example Color Indicators	Example User Text
null	Insufficient data	None	Grey	Come back tomorrow after collecting additional data to unlock your daily readiness guidance!
1 - 3	Low	int	Red	Prioritize recovery-promoting activities today. Avoid pushing your physical or mental limits if possible.
4 - 6	Medium	int	Yellow	Consider reducing stressful activities today. If you decide to push harder, then stay extra aware of recovery needs for the next few days.
7 - 10	High	int	Green	You should be able to handle more stress and activity today!

Insights

ANS Balance