Description: The article talks about Mayo Clinic’s motion analysis lab that merges biomedical engineering and computer animation to map human motion from their different modalities that can be designed and created to help patients regain mobility.
Mayo Clinic’s motion analysis lab merges biomedical engineering and computer animation to map human motion from their different modalities can be designed and created to help patients regain mobility. In this laboratory, we are analyzing humans and the movement of humans, using the same mathematics that’s used in robotics, using technology reminiscent of the computer animation in Hollywood, movies all movement is specially captured in the room.
You’ll see that there are 10 cameras that use infrared white to a reflect off utter reflective markers that we place on each camera, sees a two-dimensional representation, then merged together, using stereo for Graham and tree to get the three-dimensional location of each marker in space vibration free.
Force plates are a key part of the lab floor, where the forces exerted between foot and floor are measured. We measure the vertical force shear forces and also the torque these force plates are on air bearings ,and the air bearings are on an optical breadboard so that we can move the force plates around and reconfigure their locations.
The construction was especially done, the force plate area is isolated from the rest of the building, so that there is no vibration that affects the measurements. With the help of a real-time motion, system data can be collected similar to other labs in the mayo clinic. Many of the programs created in the motion lab are written in house.
You lose markers and you lose valuable data, so we watch as it is being collected and we also have the force plates. We are collecting that data, we take it to another program, which gives it as I affectionately call it the wiggles and squiggles.
So in the figure, you can see the markers are establishing local coordinate systems on each body segment. And we do the calculations as a person walks through the lab, you’ll see blue force vectors from the floor that are projected upwards and these force vectors give us both the vertical and shear forces.
Then we use the inverse dynamics calculations to get the moments and powers the graphs. On the right are the three dimensional rotational calculations for the hip joint, so we have the flexion extension at abduction and internal external rotation. We have advanced to the point, where we can do all the calculations in real time and get information out instantaneously.
That allows us to better treat the patients that we see like much of the rest of the Mayo Clinic’s biomedical engineering program, the motion laboratory represents a successful collaboration of engineers and clinicians to develop and apply new technologies to advance medical science.