https://www.openlearning.com/u..../lowebarton-sm4v0c/b
Self Propelled Wheelchair With Attendant Brakes Self-propelled wheelchairs that have attendant brakes can be an excellent choice for those who require extra stability and support while traveling. These chairs feature rear-drive wheels as well as a variety of accessories, including swing-away leg rests or flip-up armrests. There has been very little biomechanical studies on the turning and maneuvering of chairs with propulsion. This area warrants further research. Se