Abstract: Joint analysis system for analyzing kinematics of an anatomical including a sensor device, a storage device, a magnet, and an analysis engine. The sensor device can be configured to be disposed on a first side of the joint and can have one or more sensors, a processor coupled to the one or more sensors, a wireless data transmitter coupled to the processor, a data storage device coupled to the processor, and a battery coupled to the sensors, processor, wireless data transmitter, and data storage device. The magnet can be configured to be disposed on the second side of the joint. The analysis engine can be configured to receive data from the sensors.