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Example: Active balance
The “Active Balance” environment provides a lot of valuable information about the weight bearing by, and weight shifting between the 2 feet. Due to the fact that patients are forced to explore their entire support surface, “Active Balance” gives an impression of areas where the balance isn’t very stable (yet).
Currently, all “active balance” scenes are defined in such a way that marker positions are driving the project. However, when it is the main goal to get an impression of weight bearing and shifting, it might be more valid to use force plate data for driving the project.
However, forcing a patient to move certain parts of the body is very beneficial as well for other aspects.
The lap times and total time could be a good indicator for performance and control. However, tracking if the controlled ball is on top of the target object is possible then. For some target objects this tracking can be achieved. However, for the commonly used leave, this tracking isn’t possible. Therefore, these variables are handled with precaution.
Data collection
For the data collection of Active Balance, most aspects of “the road” are applicable. Motion capture, analog and platform data are recorded synchronously and preferably on the same sampling frequency. In addition, the gain of the dynamic balance module and the factor for the linear-parabolic slider is noted.
Protocol per subject
12 sessions per patient whereas session 1, 6 and 12 are comparison sessions having the following items being performed:
- Feet together and feet behind each other as 2 x 30 sec. balance tests.
- FSST test
- Adjusted environment with speed control via head marker
Session 1 report. / Session 6 report / Session 12 / Transfer to daily life situation