AgeRelated Changes in Mobility Evaluated by the Timed Up and Go Test Instrumented through a Single Sensor Mobility across people with a large range of age was evaluated, for the first time, by using an instrumented timed up and go test (iTUG) based on signals acquired by a single wearable inertial sensor. Eighty healthy participants, from childhood to old age, performed the test, covering walking distances of 3 m and 7 m. Total time, temporal, and velocity parameters of linear and turning subcomponents of the test were quantified. While children, adults, and senior adults exhibited similar values for all the parameters, older adults showed increases in duration and reductions in velocity during the turning phases when compared with the other groups. an increase in velocity was observed during mid turning when the test was performed along the longer distance. Similarity across children, adults, and senior adults indicates that healthy individuals develop the abilities performed in the iTUG early, while the slowing down shown during the turning phases by the older adults may reflect the need to implement adaptive adjustments to face changes of direction. These results emphasize the idea that reducing equipment to a single sensor provides an appropriate quantification when the iTUG is used to investigate a broader age range or different levels of complexity.

DYSKIMOT: An UltraLowCost Inertial Sensor to Assess Headxe2x80x99s Rotational Kinematics in Adults during the DidrenLaser Test Various noninvasive measurement devices can be used to assess cervical motion. The size, complexity, and cost of goldstandard systems make them not suited to clinical practice, and actually difficult to use outside a dedicated laboratory. Nowadays, ultralowcost inertial measurement units are available, but without any packaging or a userfriendly interface. The socalled DYSKIMOT is a homedesigned, smallsized, motion sensor based on the latter technology, aiming at being used by clinicians in xe2x80x9creallife situationsxe2x80x9d. DYSKIMOT was compared with a goldstandard optoelectronic system (Elite). Our goal was to evaluate the DYSKIMOT accuracy in assessing fast head rotations kinematics. Kinematics was simultaneously recorded by systems during the execution of the DidRen Laser test and performed by 15 participants and nine patients. Kinematic variables were computed from the position, speed and acceleration time series. Twoway ANOVA, Passingxe2x80x93Bablok regressions, and dynamic time warping analysis showed good to excellent agreement between Elite and DYSKIMOT, both at the qualitative level of the time series shape and at the quantitative level of peculiar kinematical eventsxe2x80x99 measured values. In conclusion, DYSKIMOT sensor is as relevant as a goldstandard system to assess kinematical features during fast head rotations in participants and patients, demonstrating its usefulness in both clinical practice and research environments.