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https://chessdatabase.science/....wiki/15_Interesting_
Self Propelled Wheelchair With Attendant Brakes Self propelled wheelchairs with attendant brakes are a great option for those who require additional support and stability when traveling. These chairs come with rear drive wheels and an array of accessories such as swing-away leg rests or flip up armrests. There has been very little biomechanical studies on the turning and maneuvering of the chairs' attendants. This is an area that requires further investigation.

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