Abstract: A wearable device comprising a data logger, a motion sensor, and a memory component is disclosed for recording motion data. The motion sensor may detect movement of the device when worn by a subject, and the memory component may store motion data from the motion sensor. A casing may be included for retaining the data logger and providing a contact barrier between at least part of the data logger and the subject. The contact barrier may substantially prevent contact contamination of at least part of the data logger while the device is worn by the subject for collection and storage of subject-specific motion data. The casing is controllably accessible to release the data logger in a substantially uncontaminated state.

Abstract: A wearable device comprising a data logger, a motion sensor, and a memory component is disclosed for recording motion data. The motion sensor may detect movement of the device when worn by a subject, and the memory component may store motion data from the motion sensor. A casing may be included for retaining the data logger and providing a contact barrier between at least part of the data logger and the subject. The contact barrier may substantially prevent contact contamination of at least part of the data logger while the device is worn by the subject for collection and storage of subject-specific motion data. The casing is controllably accessible to release the data logger in a substantially uncontaminated state.