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      Movesense Data Format

      This article will help you understand how your downloaded Movesense data is organized with Labfront.

      - 👨‍🔬 For Researchers -

       

      ECG and 9-axis IMU data are available with Labfront's Movesense integration.

      In this article, we'll cover:

       

      How the Folders are Organized

      Labfront creates a single ZIP file of all of your participants' data, labeled with your unique Project ID.

      As you can see below, each participant has their own folder labeled with their Participant Insignia (name inputted by the researcher) and Participant ID (unique identifier).

       
      HC__Data__File__Movesense__Participant (1)
       
      In the participant folder are CSV files organized into subfolders by data source and/or tasks. Your Movesense physiological data CSV files will be located in the movesense-stream folder.
       
      HC__Data__File__Movesense-Stream (1)
       
      Each Movesense task has its own folder named after the task, containing subfolders for each instance (labeled with the Unix timestamp) and the collected data types (IMU, RR-Interval, and/or ECG).
      For example, here is an Exercise Recovery task that was completed twice. You can see the timestamped subfolders for each instance of the task and subfolders for each data type collected (movesense-stream-imu and movesense-stream-rr):
       
      HC__Data__File__Movesense (1)
       
      Movesense tasks are organized this way because each task can record lots of data, and can use different sensors at different resolutions, but they should all be contained together for easier analysis. 
       

      Note

      You will also see a movesense-stream-stopwatch-event file. This file does not contain physiological data but displays when participants stopped and started the Movesense task and keeps a record of each instance. 

      HC__Data__File__Movesense-Stream__Stopwatch (1)

       

      How Movesense CSV Files are Organized

      The CSV files in every folder are numbered beginning with 000000. If a file exceeds the maximum amount of rows permitted, a new CSV file will be created and numbered sequentially (Ex. 000001, 000002, etc.).

       

      HC__Data__File__Movesense-Stream-ECG (1)

      Header

      Your project, participant, and task details are located in the Header of every CSV file. The Header length (in this example it's 5) means that the subsequent 5 rows are part of the Header and do not contain participant data.
       
      HC__Data__File__Movesense__Header (1)
       
      For a list of variables included in the Header and their descriptions, you can view this table:
       

      Participant Data

      Within each data type's CSV file, each row represents one data recording.
       
      Sample IMU data: 
      HC__Data__File__Movesense__IMU (1)
       
      Sample ECG data: 
      HC__Data__File__Movesense__ECG (1)
       
      Sample RR-Interval data:
      HC__Data__File__Movesense__RRI (1)
       

      👀  View our documentation on Movesense data types and descriptions→  

       

      image 173 (2) Data Documentation Resource

      Access our data documentation PDF for a data dictionary of metrics you can collect with Labfront and their meanings. 
       

      ➕ Additional Information About Your Data

      For a better understanding of your data, we suggest reading the following articles:

       

      FAQs

      Why does Labfront use Unix time?

      The Unix timestamp is the number of seconds between a particular date and the Unix Epoch (Jan 1, 1970). Since this point in time technically does not change no matter where you are located on the globe, it's very useful for accurately comparing and manipulating dates and times across different platforms and time zones.

      Do you offer any services to help analyze the data? 

      We do! Our team of experts has over 20+ years of experience in digital biomarkers and research analytics. You can outsource your analytics to us and save up to several months of work. Learn more about Labfront Analytics here or contact us at support@labfront.com.