Abstract: Mouth guards having electrodes, sensors, and/or accelerometers for determining one or more physiological conditions of a subject. Processing circuitry receives the outputs of the electrodes, sensors, and/or accelerometers. Optionally, at least a portion of the processing circuitry can be positioned within a helmet that is worn by a subject. The mouth guard can optionally be tethered to the helmet.

Abstract: Mouth guards and related systems and methods for determining linear and angular accelerations of the head of a subject. A plurality of accelerometers are operatively associated with the mouth guard and spaced from one another about the mouth guard. The accelerometers produce outputs indicative of the linear and angular acceleration of the mouth guard. Optionally, the mouth guard can be used in conjunction with a helmet that is provided with a plurality of accelerometers spaced about the helmet. In use, the outputs of the accelerometers of the helmet can be correlated to the outputs of the accelerometers of the mouth guard.

Abstract: Methods, systems, and apparatuses for managing sensor information are disclosed. An example apparatus can comprise a power unit configured to collect energy, a sensor unit configured to receive sensor data from a sensor, a memory unit configured to store the sensor data, a communication unit configured to wirelessly broadcast the sensor data to one or more sensor nodes in a network of sensor nodes, and a processing unit. The processing unit can be configured to operate at least one of the sensor unit, the memory unit, and the communication unit after the energy collected in the power unit reaches a threshold value.