The Go Direct Respiration Belt is not appropriate for any experiment lasting more than approximately 20-30 minutes. We cannot provide a more accurate estimate of the duration for the longest possible experiment because the sensor can be used over USB or BLE. There are also likely different rates / durations that can be supported using different platforms (Android, iOS, Chrome, Mac, PC). The best way to optimize performance is to use the USB cable, and to use it on a standard computer (Mac or PC). This device is not appropriate for sleep studies.

The Go Direct Respiration Belt (GDX-RB) was designed for classroom use by students to investigate breathing patterns during short term activities (ex. before and after breath holding, before and after exercise). The Go Direct Respiration Belt is not suitable for use on a reclining or sleeping subject and it is not recommended for any type of medical research or clinical use. It is not suitable for recording data for long time periods (hours). 

The default data collection rate for the Go Direct Respiration Belt (10 samples/s) may be too fast for student experiments that last longer than 10-15 minutes. For students wanting to try longer periods of data collection in the classroom try the following:

  • Reduce the sampling rate to 5 samples/s. This may work for experiments lasting as long as 20-30 minutes. 
  • Turn off the Force channel. The Force channel does not need to be active for the sensor to record respiration rate. You will not be able to see Force (respiration effort), but respiration rate should still be calculated. Do not change the default sampling rate. Please note that the sensor may still not be able to record respiration rates for longer than 20-30 minutes.