During airline flights we are subjected to cabin pressures which are similar to being at 8,000′ of elevation. Stanford researchers observed a striking decrease in blood oxygen (SpO2) levels during airline flights. They subjected a participant to 96 different flights for measurement. The flights ranged from 23 min to 829 min in duration. A drop in SpO2 levels of 96% or lower occurred in all flights and many flights were less than 94% for most of the flight.
Researchers went further to associate fatigue with SpO2 levels by issuing a psychomotor vigilance test and quantified fatigue based on visual response times.
One unexpected finding is that toward the end of a long flight SpO2 levels would begin to rise. The increase is believed to be due to a adaptation or physiological change after rest/inactivity.
Make a robot friend with Adafruit’s CRICKIT – A Creative Robotics & Interactive Construction Kit. It’s an add-on to our popular Circuit Playground Express, FEATHER and other platforms to make and program robots with CircuitPython, MakeCode, and Arduino. Start controlling motors, servos, solenoids. You also get signal pins, capacitive touch sensors, a NeoPixel driver and amplified speaker output. It complements & extends your boards so you can still use all the goodies on the microcontroller, now you have a robotics playground as well.