Procedure and equipment:

Seismophyte® measures vibrations (tremors) that arise from a heartbeat and are transmitted to the chest. Each heart has its own signature in relation to opening and closing valves and relaxation and contraction of the heart chambers. And because only vertical tremors are measured, it is important that the person lies down.
Determination of VO2 max takes 3-4 minutes and is without physical exertion.
Note: Do not test clients with electronic implants such as Pacemakers and the like.

Check in advance that the iPhone is fully charged (and otherwise it can be connected to a USB stick in the PC if the PC is also set to charge).

Clinic procedure:

1. Turn on the iPhone (code 258011) and make sure you have access to the Internet via our small Huawei WIFI router. The router’s Password is in the router’s main menu.
   Note: Any codeless guest WIFI may be used for the fitness test, as personal identification is not part of the data sent.
   
2. Open the VentriJect App and see that the phone can see the sensor.
3. The sensor is glued to a special double-sided Mepor label, which is then glued to the chest (lower part of the sternum). The head figure on the sensor should face the client’s face. The sensor cannot be glued to the outside of the garment. If there is too much hair on the chest, click off as much as possible and try again (It should not be necessary to shave).
4. Load the client’s height, weight, age, and gender.
5. Press start.
6. Testing takes about 45 seconds. However, since the Seismofit analyzes the following minutes, the client can appropriately remain until the registration is complete.
7. The iPhone now sends data to a Cloud Server, which after a few minutes sends the VO2 max value back.
8. The value is noted in AGS’ ACCES database.
9. NOTE: If the test was performed AT A DIFFERENT TIME than what is stated in the client’s “place” in the timetable, please note the time of the test in the timetable. We need this in case the test is later to be found at the supplier.

What can go wrong?

1. No mobile broadband (WIFI) = no connection to the Cloud function. Check if there is a guest WIFI on site (If it is NOT password protected, it may ONLY be used on iPhone for fitness tests. NOT for the clinic PC).
   
2. Too much clothing. Textile dampens vibrations and the sensor measures much too low. Can/must not be on the skin, we cannot vouch for the test.
   
3. Too much hair on the chest (Do we need a razor in the kit?). Cut off as much hair as possible and try again.
   
4. Other “abnormalities” such as surgical scars or wounds: Try to place the sensor slightly to the side so that contact is achieved with “normal” skin.
5. Too cold on the floor – or not enough space. It’s OK to fold your legs. Bare the upper body lies flat.
   

If VO2-Max is out of scale:

1. Check that Gender is correct and that there has been no swap of Height and Weight under data input?
2. Check that correct units have been used (Metric vs Imperial).

Quick Guide:

1. Check that the iPhone is fully charged,
2. Turn on iPhone (code 258011),
3. Check that the iPhone is connected to Wifi,
   (Note: Any codeless guest WIFI may be used)
4. Insert battery into the sensor. Battery top = Sensor Logo front (numbers are on the back),
5. Open the VentriJect App and see that the phone can see the sensor,
6. The sensor is glued to a Mepor label, which is glued to the chest (lower part of the sternum),
7. Load the client’s height, weight, age, and gender,
8. Press start,
9. The client’s heart rate is measured for 45 seconds. Then a bib and the client is done,
10. iPhone now sends data to a Cloud Server, which quickly sends the VO2 max value back,
11. The value is noted in AGS’ ACCES database.

Error messages (we see very rarely) and what they mean:

Sometimes we do something wrong, our clients do something wrong, or Seismofit® is just picky!
Here’s what each error message tells you to fix for the remeasurement to be successful:

1. VO₂max Out of Bounds – The result seems unusually high or low.
   • This error occurs most often when height and weight data are swapped.
   • Double-check that height, weight, and gender are entered correctly.
   • Make sure you’re using the correct unit type (metric vs. imperial).
2. Data Connection Error – Your measurement is ready, but does not arrive at VentriJect’s servers
   • Try switching between WiFi and mobile data for a better connection.
   • Try if you can get access to a guest Wifi.
3. Heart Rate Out of Bounds – Heart rate seems too high or low for a resting measurement
   • Give your client 5 more minutes to really relax (if possible during the examination time),
   • Let the client “spread the word” that it is best not to have been active, eaten or climbed stairs recently.
4. No Heartbeat Signal Detected – The sensor has trouble picking up a clear signal
   • Double-check that the patch is firmly attached to clean, dry skin.
   • Press lightly on the edges of the patch to ensure they are firmly attached.
   • Remind your patient to stay still.
5. Signal Too Noisy – There is too much interference or movement
   • Make sure your client is completely still,
   • Move all clothing away from the sensor,
   • Put phones and other electronics aside for a moment.