Transcript
Learning to walk again
Gait Analysis and Gait Training for Rehabilitation
NEW
The World of Biomechanics
zebris Medical GmbH
Rehawalk ®- a new concept for treating gait disorders In addition to the treadmill, the gait analysis and training system includes a unit for projecting the step pattern on the treading surface, a screen unit for implementing individual virtual feedback training as well as a processing unit. An integrated illumination and camera unit is optionally available for documentation. The system additionally enables stress and balance analysis when standing.
The product line introduced here is based on the proven h/p/cosmos treadmill systems that are available in different sizes and feature variations. The treadmills can, for example, be equipped with arm support and a safety arch.
By using an integrated un-weighting system, it is possible to commence the locomotion therapy at an early stage. As a complete system, the h/p/cosmos locomotion med offers additional adjustable handrails, a wheelchair ramp and therapy seats.
The evaluation report on the gait analysis contains all the important place and time parameters, such as the stance, swing and double-stance phases, step length, step width, footrotation angle and a detailed analysis of the force distribution under the feet.
The zebris Rehawalk® System is suitable for treadmill-supported analysis as well as treatment of gait disorders and unsteady gaits in neurological and orthopaedic rehabilitation. The application possibilities include an adaptive visual cueing by means of step projection on the treading surface, which can be individually adapted to
the patient’s capability with Rehawalk®. An automation of motion sequences with complete protection against falling and additional weight unloading can be achieved due to the high number of step repetitions. The course of treatment is automatically documented by the system via evaluation reports.
Underneath the belt, a pressure sensor matrix is installed featuring several thousand calibrated,
capacitive pressure sensors. The belt movement is compensated such that stable gait and roll-off parameters can be analyzed.
The World of Biomechanics
zebris Medical GmbH
Gait training using adaptive, visual cueing Gait analysis
Setting the target parameters
The important characteristics for preparing the visual cueing are taken over automatically from the evaluation report.
The gait analysis is carried out without any preparations to be done on the patient for taking measurements. The measuring process can be observed on the screen in realtime. The report is automatically processed.
Gait training
In the settings menu the step length, step width and foot rotation parameters are set according to the training objectives. The values can remain constant during the gait training, or gradually near the target settings during the course of the training.
Success control and comparative analysis
At the beginning or during the entire gait training, the patient positions his feet as accurately as possible within the projected surface areas. This is possible when walking freely and also when using body-weight support. The projection shows the actual shape of the footprint, or in another presentation, a rectangle or oval shape.
In the success report, the adherence of the target settings is documented. On that basis the target parameters can be adjusted to the patient’s capability.
Before and after rehabilitation, comparing the gait analysis parameters is easily accomplished in the comparative report.
The World of Biomechanics
zebris Medical GmbH
Gait and coordination training using virtual feedback The patient moves in a virtual walking environment, and while observing his or her own footprints, performs various tasks which require a continual variation of walking and balancing. Postural control as well as coordinative skills are checked and trained as a result. Training can be individually adapted to the patient through various modules.
The obstacles to be overcome are walked over or bypassed; the patient has to balance on stones or wooden
Physical and cognitive performances are simultaneously demanded during dual task training. The patient solves simple perceptual and memory tasks as well as arithmetic problems while walking. The level of task difficulty can be increased and walking obstacles can be added. While doing so, reaction and attentiveness are trained and automated walking is supported.
footbridges, and falling rocks must be avoided. New training scenarios arise from diversions. Special training levels can be created and stored with an editor. At the same time, the number and level of task difficulty can vary and the patient’s abilities can be adapted.
The World of Biomechanics
zebris Medical GmbH
Optional Extensions Camera, Illumination
The zebris illumination and camera system is available separately or in one unit as a “SyncLightCam”. Joint angles can be quickly and easily shown and displayed in the report with a calculation module being integrated in the software. The illumination is adjustable in intensity and is automatically controlled and synchronised together with the camera by the treadmill system.
zebris Myographie System
Stand Systems
A completely aligned stand system is available for positioning the screen in front of the treadmill, for optimal operation of the evaluation computer and for mounting the camera and illumination unit. Depending on application, stands can be supplied in various versions with a solid base plate with a mobile lower part and with electrical connections.
The fully synchronized zebris Myography System registers the muscle action potentials using bipolar electrodes placed on the skin surface. The Myography System comprises 8 measuring-channels inputs and is connected wirelessly via bluetooth to the evaluating computer. The evaluation report of the Rehawalk® System shows the time-standardized EMG signals.
The World of Biomechanics
zebris Medical GmbH
robowalk® Expander System
The h/p cosmos robowalk® Expander System supports the patient’s movements with elastic expander cables. These are attached to the legs of the person training with comfortable cuffs. The front expander cables support the movement of legs when walking. The rear expander cables can be optionally utilised as a resistance and gait correction unit.
Technical Data Rehawalk® Systems
Speed Running surface Drive motor Weight Frame size (L x W x H) Track access height Elevation Max. user weight Color Sensor surface Number of sensors
mercury med 0-10 m/h 150 x 50 cm 3.3 kW 220 kg 210 x 82 x 136 cm 18 cm 0-25 % 200 kg grey-aluminium 112 x 49 cm 3432 (7168)
quasar med 0-25 m/h 170 x 65 cm 3.3 kW 430 kg 230 x 105 x 140 cm 23 cm 0-28 % 200 kg grey-aluminium 152 x 59 cm 4576 (10240)
The expander support is adjustable from the angle of tractive force. The system is ideally suitable for patients with restricted mobility, for orthopaedic and neurological rehabilitation and in combination with the Rehawalk® System.
Speed Running surface Drive motor Weight Frame size (L x W x H) Track access height Elevation Max. user weight Color Sensor surface Number of sensors
locomotion 150/50 med 0-10 m/h 150 x 50 cm 3.3 kW 380 kg 210 x 82 x 136 cm 18 cm 0-25 % 200 kg grey-aluminium 112 x 49 cm 3432 (7168)
locomotion 190/65 med 0-25 m/h 170 x 65 cm 3.3 kW 400 kg 230 x 105 x 140 cm 23 cm 0-28 % 200 kg grey-aluminium 152 x 59 cm 4576 (10240)
Distribution of robowalk® only via h/p/cosmos specialist dealers.
Measuring range 1-120 N/cm² · Sampling frequency 120 HZ · PC-Interface USB
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©zebris 6/2014. Subject to technical modifications.
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zebris Medical GmbH
