Disclosed herein are systems comprising sensor devices that may be affixed to a patient and used to perform clinical measurements such as measurements for calculating a BASMI score. A first sensor device is configured to be successively attached to each of a wrist carrier, an ankle carrier, and a headset carrier. The carriers are attached to, or positioned next to, the relevant portion of the patients body in order to perform particular measurements relating to generating a BASMI score. As the patient performs the routine of motions associated with a particular BASMI measurement, the sensor device records the measurements and communicates the measurements to a user computing device. A second sensor device is configured to be applied to the patients torso and an additional measurement of patient flexibility taken and communicated to the user computing device. The user computing device generates a BASMI score from the recorded measurements.