Device for cardiovascular intensity measurement

Abstract

Embodiments provide physiological measurement systems, devices and methods for cardiovascular intensity measurement. In an aspect, a wearable device receives a time series of heart rate data for a user. The time series of heart rate data can be weighted and summed according to a weighting scheme. The weighted and summed time series of heart rate data can be used to generate an intensity score indicating the cardiovascular intensities experienced by the user during a desired period of time.

What is claimed is: 
     
         1 . A system for physiological monitoring and measurement comprising:
 a wearable physiological measurement device including one or more sensors configured to continuously monitor a heart rate of a user;   a strap attached to the continuously wearable physiological measurement device and couplable to an appendage of the user;   a display device; and   a processor coupled in a communicating relationship with the wearable physiological measurement device, the processor configured by computer code stored in a memory and executing on the processor to:
 receive heart rate data for the user from the wearable physiological measurement device, the heart rate data including a time series of heart rate data for the user; 
 weight the time series of heart rate according to a weighting scheme to provide a weighted time series of heart rate data using two or more models of physiological processes for different levels of cardiovascular exertion; 
 sum the weighted time series of heart rate data for a predetermined unit interval to provide a summed weighted time series of heart rate data; 
 generate an intensity score providing an indicator of cardiovascular intensity based on the summed weighted time series of heart rate data over the predetermined unit interval; and 
 display the intensity score in a user interface rendered on the display device. 
   
     
     
         2 . The system of  claim 1  wherein the processor is further configured to transform the time series of heart rate data to a time series of heart rate reserve data based on the time series of heart rate data, a resting heart rate for the user, and a maximum heart rate for the user. 
     
     
         3 . The system of  claim 1  wherein the processor is further configured to determine a maximum heart rate of the user and a resting heart rate of the user. 
     
     
         4 . The system of  claim 1  wherein the weighting scheme includes a dynamic weighting scheme adapted for one or more physiological properties of the user. 
     
     
         5 . The system of  claim 1  wherein the weighting scheme includes a static weighting scheme based on static models of a physiological process. 
     
     
         6 . The system of  claim 1  wherein the weighting scheme includes a plurality of categories dependent on an efficiency of cellular respiration. 
     
     
         7 . The system of  claim 1  wherein the weighting scheme includes at least one category for anaerobic respiration. 
     
     
         8 . The system of  claim 1  wherein the weighting scheme includes piecewise linear parameter ranges. 
     
     
         9 . The system of  claim 1  wherein the weighting scheme includes weighting categories with strictly increasing weight values for increasing heart rates. 
     
     
         10 . The system of  claim 1  wherein the weighting scheme includes a weighting function that increases for increasing categories of exertion. 
     
     
         11 . The system of  claim 1  wherein the intensity score is adapted for one or more of a user age, a resting heart rate, and a maximum heart rate. 
     
     
         12 . The system of  claim 1  wherein the intensity score is adapted for an anaerobic threshold for the user. 
     
     
         13 . The system of  claim 1  further comprising receiving a user input to activate a privacy setting during which physiological data is not shared with other users. 
     
     
         14 . The system of  claim 1  further comprising displaying the intensity score along with information characterizing heart rate zones experienced by the user during an exercise routine. 
     
     
         15 . The system of  claim 1  further comprising displaying the intensity score along with information characterizing whether the user exceeded an anaerobic threshold. 
     
     
         16 . The system of  claim 1  wherein the processor is further configured to scale the summed weighted time series of heart rate data transform the intensity score to a predetermined distribution. 
     
     
         17 . The system of  claim 1  wherein the processor executes on a web server or a mobile computing device. 
     
     
         18 . The system of  claim 1  wherein the wearable physiological measurement device includes a wireless transmitter coupling the wearable physiological measurement device in a communicating relationship with the processor. 
     
     
         19 . The system of  claim 1  wherein the predetermined unit interval for summing the weighted time series of heart rate data includes an exercise routine by the user. 
     
     
         20 . The system of  claim 1  wherein the processor is coupled to the wearable physiological measurement device through a Bluetooth connection.