I mean about medical variables (Blood and biochemical tests,..) or movement and biomechanical variables (as gait speed, strength of limbs, coordination,..)? I think that you are making the research about the last ones; but do you determine just clinical and observationally or do you use Kinematic (video or mobile recordings,..) or some kinetics that are more difficult to determine.

Do you use to make the research?:

- Clinical test as speed of walking, TUG, SPPB,..

- Video recordings with Mobile Apps, Video cameras, kinematics laboratory analysis?