Build a Wearable Vibration Monitor
Long-term exposition of your body, or parts of it, to vibrations may result in injury. But how do you measure the risk? This project might help here. Although originally designed for measuring vibrations caused by hand-held power tools like drills and grinders in the user’s hand and arm, there are probably many other fields of application for it. All you need to do is place the sensor in the right spot.