Knowledge Base

DSI

DSI Ponemah 6.40

The following picture shows the import profile for Ponemah 6.40. With this profile you can import one or more data columns.

• Note that the second column of the data file (B) contains time stamps and must be dragged to the Time series field.
• IMPORTANT: Import of data from Ponemah 6.40 to EthoVision XT works when the time format in Windows is set without AM/PM. When exported, the time should be in a format like 10:57:55.000.
• To export the data in Ponemah, choose Action > Start Review. Select all signals you want to export, and the time range. In the graph window, choose File > ASCII Output. Select the channels and the data range. Select the option to Include Time in Output. Next, click Convert to ASCII. The file is ready for import into EthoVision XT.

DSI DataQuest A.R.T. 4.3

For DataQuest, the profile specifies that the first column of the data file (A in Data Sets) contains the time stamps. Column B contains the sync data, and the remaining columns C-G contain activity and physiological data.

BIOPAC

For the BIOPAC system, AcqKnowledge is the software used to record, analyze and export the data. This is an example of an export file of AcqKnowledge 5. The file contains information about the sample interval. In this case the sample interval is 2 ms.

The following picture shows the Import Profile Definition window in EthoVision XT for a BIOPAC AcqKnowledge 5 file.

The header contains information about the sample interval (milliseconds), and information about the channels. In this example, the ECG, heart rate, the R-R interval and R-peak height were measured.

The sample rate is calculated based on the sample interval. In this case the samples are taken at an interval of 2 milliseconds. This corresponds to a sample rate of 500 Hz.

Doric

Doric (*.doric) data files can be exported as CSV files to EthoVision XT.

The following figure shows an import profile for CSV files with multiple channels. The first column of the CSV includes the time stamps. The other columns contain data of the channels recorded. The arrows indicate where you need to drag the cell contents in the Header section and in the Data sets section in order to create a similar import profile.

Polar

The Polar system is used for monitoring heart rate. After data acquisition the data can be transferred to a computer (not available with all Polar systems). The data is stored in a HRM file. These HRM files can be directly imported into EthoVision XT. EthoVision XT cannot be connected to the Polar system. Therefore, Polar heart rate data and EthoVision tracking data always need to be synchronized manually.

To facilitate manual synchronization of Polar heart rate data and tracking data you can do the following:

• If the Polar software is running on the EthoVision XT computer: Synchronize the Polar watch with the clock of the EthoVision XT computer. Please see the Polar Precision Performance software Reference Manual for a description of how to do this. Please note that this is not possible for all Polar systems.
• If the Polar software is not running on the EthoVision XT computer: Synchronize the EthoVision XT computer and the Polar computer. Synchronize the Polar watch with the clock of the Polar computer.

The settings on the Polar receiver determine what header information is written to the HRM file. Please refer to your Polar manual for a detailed description of the settings.

The file header contains information about date and time, the length of the recording period (00:12:54:08) and the sample interval (5 sec). It also contains information about settings of the upper and lower limit of the heart rate.

Depending on the settings of the receiver, the HRM file can contain additional information. This does affect subsequent import of HRM files acquired with different types of receivers.

The HRData column shows the mean heart rate (in beats per minute) over a 5-second period.

Polar Precision Performance 4.01 (No Date - Time)

This is an example of the Import Profile Definition window in EthoVision XT for the profile Polar Precision Performance 4.01 (no date - time) obtained with the Polar file described above.

Note that in the Data definition section the cells under Start Date and Start Time are empty, meaning that the import profile does not read date and time information in the Polar file.

Polar Precision Performance 4.01

This is an example of the Import Profile Definition window in EthoVision XT for the profile Polar Precision Performance 4.01 obtained with the Polar file described above. This profile reads the date and time information contained in the export file header.

Note that in the Data definition section the cells under Start Date and Start Time contain the information read from the Header section (the corresponding cells in the Header section are grayed out).

Interbeat Interval Data

Interbeat interval data obtained with a Polar system have the same format as HRM data. However, the file does not contain the time stamps that EthoVision XT needs for time information.