|Get Started (Internet)|
November 13th, 2010
The Get Started menu:
Note: Just below menu item #6 is the example text "BreatheHeart:111310". This indicates the release date of the software.
1. Amp & Sensor:
Valsalva Wave "hardware" consists of an "Amplifier" and a plethysmographic "Sensor". The sensor detects blood volume/density as a function of blood flow and pressure. The amplifier amplifies, conditions, and digitizes the signal, as well as providing Universal Serial Bus (USB) interfacing with a Windows PC.
Regarding general use, BreatheHeart depends on the presence of the Amplifier and Sensor. If the Amplifier is unplugged from the PC when the application is running, the application will be interrupted. Also, if the Sensor is plugged into the Amplifier or unplugged from the Amplifier while the application is running, the application will be interrupted. It is best to plug the Sensor into the Amplifier, then plug the Amplifier into the USB port on the computer, then open the application. Follow this same process in reverse for unplugging the Amplifier and Sensor.
Please visit: www.breatheheart.com/breathehearthelp.html for additional information about the Amplifier and Sensor.
The BreatheHeart sensor detects blood volume and changes in blood volume due respiration and the heart beat. Respiration is easier to detect than heart beat and for this reason it is possible to detect the former without detecting the latter. Detecting both requires that the tension being applied to the body is strong enough to detect the "pulse" and at the same time, light enough not to interfere with blood volume in the ear lobe.
For this reason, the ear sensor is equipped with a "drift kit" that keeps the clip properly tight on the typical ear. See the photo below. The purpose of the drift kit is to keep the clip from squeezing the ear too much.
2. Basic Signals: See description of each graph below.
3. Heart Rate Metrics
See description of each graph below. Heart rate signals are "Blue".
BreatheHeart provides visual thresholding for certain Heart Rate functions.
This includes Heart Rate, Heart Rate Variability, and Heart Rate Variability Average screens. Thresholds are indicated by an adjustable horizontal yellow line or bar that can be moved up or down to indicate the training goal. Audible reward prompts will be added in the next software release.
A yellow "Threshold" legend is presented at the top of those screens that support thresholding. Also, the "Threshold" button is available on the toolbar. When the threshold button is clicked, the Threshold Settings dialog box appears, allowing the threshold of interest to be selected, and its value established.
Heart Rate Variability screen depicting a threshold set at 20 beats
Please note that on variability measurement screens (with a fixed Y-axis) threshold values correlate with the Y axis. On screens where gain is automatically adjusted (and values on the Y-axis vary with gain), threshold values are simply numerical. Also, thresholds are presently not printed on reports.
It is recommended that threshold values are recorded using the Event Marker function which is available on recorded reports. Below is an example of a single event marker that captures the threshold for the Heart Rate Variability measurement. Where there is an upper and lower threshold, 2 event markers are presently required.
Recorded "report" depicting Event Marker with threshold value
To create an event marker, when in record mode, click the green "marker" on the Control Bar along the bottom of the screen. A small input window will open briefly. Input the threshold value and hit "return". It then appears on reports as depicted above and with exported data.
Using Event Marking to record threshold values
5. Sessions & Reports
BreathHeart allows the user to run sessions, record session data, and generate reports. Users can access any one of the pre-defined "report screens" or export the data to generate reports externally.
The most basic entry and exit screen
To run a session, click on the run session button. Using the primary Navigation Bar at the top of the screen choose the screen you wish to view. To record a session, click on the "record button" depicted in the bottom control bar below. (BreatheHeart records all of the signals that are being generated by the instrument, not just the one that is presented at any given moment. The yellow bar will begin advancing to the right, indicating that the session is being recorded.
To end recording, the record button must be pushed again. Recording stops and the yellow bar disappears. To save the session, click on the "stop" arrow in the lower left corner. (The stop arrow must be pressed to exit any active screen.)
The bottom control bar
When the stop arrow is pressed, the "Save Session Data" dialog box is presented. If it is a new client, click the "New Client" button and complete the form. If it is an existing client, click the drop down arrow to select the client name. Once the name has been selected click "Save To Database". Once saving is complete. click on the "X" in the upper right hand corner of this dialog box to close. This will return the user to the entry screen from which you can run another session, access client data, etc.
The "Saved Signals" field highlighted by the red circle determines what signals the instrument saves during each session. The default setting is "all signals", i.e, all of the check boxes are checked. It is recommended that you do not change the default settings.
Note: All screens can be paused and "screen printed" at any time by clicking the "Freeze Screen" icon on the bottom "Control Bar". It is recommended that you print the screen by freezing the screen, copying the screen by using the "print screen" command on your PC, and pasting the screen into PowerPoint or another application, then printing. Please avoid using the print screen button on the Control Bar because it produces a very large bitmap file and can result in printing problems.
This selection explains the standard reports provided. When a session is recorded, BreatheHeart records the data associated with any or all signals. Afterwards, the session can be selected and the data can be viewed or exported. The following reports are those automatically generated in Version 1.0. Data is available for all signals for purposes of exporting. Instructions for viewing and generating reports can be found under the Help menu.
Valsalva Wave signals are "Red". Heart Rate signals are "blue".
R2. Valsalva Wave (AC):
R3. Valsalva Wave (AC) AND Heart Rate:
Heart Rate Reports
Heart Rate signals are "Blue". Valsalva Wave signals are "red".
R1. Heart Rate on the top panel and Heart Rate Variability on the bottom panel:
R2. Heart Rate Average:
R3. Heart Rate (AC):
R4. Heart Rate Variability:
R5. Heart Rate Variability %:
R6. Heart Rate Variability (Average):
R7. Heart Rate Power Spectrum - LF:
R8. Heart Rate Power Spectrum - MF:
R9. Heart Rate Power Spectrum - HF:
R10. Heart Rate Power Spectrum - LF, MF, HF:
R11. Heart Rate AND Valsalva Wave (AC):
Pulse Wave Reports
R1. Pulse Wave (AC):
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