Home » Latest Technology » 3D motion capture technology helps improve rehabilitation for stroke patients

3D motion capture technology helps improve rehabilitation for stroke patients


In a novel learn about, researchers have used 3D technology from the movie and online game business to analyse on a regular basis actions of stroke sufferers.

The consequences of the find out about point out that computerised movement diagnosis will increase the data of how stroke sufferers can make stronger their means to maneuver via rehabilitation.

Within the movie and video game industry, motion capture technology is used to convert people’s movements into computer animations – famous examples include the character Gollum from the Lord of the Rings and Na’vi from the blockbuster film Avatar.

Margit Alt Murphy and colleagues at the Sahlgrenska Academy, University of Gothenburg in Sweden, have brought the technology into the research laboratory.

Researchers used motion-capture technology to film everyday movements among roughly one hundred people, both healthy people and people who suffered a stroke.

The 3D animations have provided a completely new level of detail in terms of mobility in stroke patients – knowledge that can help patients achieve more effective rehabilitation.

Computer technology provides better and more objective documentation of the problem in terms of the everyday life of the patient than what human observation can provide,” Murphy said.

“With 3D technology, we can measure a patient’s movements in terms of numbers, which means that small changes in the motion pattern can be detected and can be fed back to the patient in a clear manner.

“Our results show that computerised motion analysis could be a complement to a physician’s clinical diagnosis and an important tool in diagnosing motion problems,” Murphy added.

The technology is highly advanced, but for the patient, the method is simple.

In the study, the test subjects were equipped with small, round reflex balls on their arm, trunk and head, and they were then instructed to drink water out of a glass.

The motion is documented by means of excessive-pace cameras whose infrared mild is mirrored by means of the balls and despatched again to the pc the place they devise a 3D animated picture within the type of a stick determine.

“With 3D animation, we are able to measure the joint attitude, pace and smoothness of the arm movement, in addition to which compensating movement patterns the stroke affected person is the use of. This supply us a dimension for the movement that we are able to evaluate with an premier arm movement in a wholesome particular person,” stated Murphy.

“Our learn about presentations that the time it takes to function an process is strongly associated to the movement high quality.

“Even though this technology shouldn’t be on hand, we are able to nonetheless receive very precious details about the stroke affected person’s mobility with the aid of timing a extremely standardised task, and each therapist retains a stopwatch of their pocket,” stated Murphy.