background: over the years, various types of orthoses have been designed to assist subjects with spinal cord injury (sci) to stand and walk. however, the functional performance of the orthoses has not been adequate, that is, patients experience stability problems, consume excessive energy during ambulation, and generally require assistance in donning and doffing the devices. this research is ai...

In this study, 10 normal volunteers and 5 sports-trained paraplegics with lesions between T6 and L2 were studied whilst walking with axillary crutches and knee-anlde-foot orthoses. All subjects walked at their preferred speed on a figureof- eight track. Normal subjects also walked at slower and faster speeds. Oxygen consumption, heart rate and rating of perceived exertion were measured. In...

The gait cycle is typically viewed as a periodic sequence of discrete events, starting with heel contact during initial stance and ending with knee extension during late swing. This convention has informed the design of control strategies for powered prostheses and orthoses, which almost universally utilize the concept of a finite state machine (FSM), e.g., the five states in Fig. 1. Each state...

PURPOSE To analyze the current practice patterns of non-arthroplasty treatment of knee osteoarthritis (OA) and to assess the impact of the American Academy of Orthopaedic Surgeons clinical practice guidelines on the management of OA of the knee, particularly as they relate to the use of arthroscopic treatment. METHODS The United Healthcare Database (2004-2009, 11 million patients, 216 million...

The purpose of this study was to compare the effect of knee unlocked medially linked Knee-Ankle-Foot Orthoses (MLKAFO) to the conventional knee locked MLKAFO during walking by means of Functional Electrical Stimulation (FES). A 33-year-old male with complete T8 paraplegia participated in this study. The stimulator has two hand switches to change the stimulation pattern. When the switch was turn...

This paper establishes a granular mechanics model for the stable movement of material particle group in vertical screw unloader with mechanics, continuum and theory innovatively proposed hypothesis that speed changes radially spiral groove. Through analysis movement, characteristic parameters are determined. The study found free surface type longitudinal section conveyor its identification solu...

In this paper, we present the mechanical design, control algorithm, and functional evaluation of a quasi-passive compliant stance control knee-ankle-foot orthosis. The orthosis implements a spring in parallel with the knee joint during the stance phase of the gait and allows free rotation during the swing phase. The design is inspired by the moment-angle analysis of the knee joint revealing tha...

OBJECTIVE A systematic review of the available literature on the effectiveness of knee-ankle-foot orthoses in the treatment of Duchenne muscular dystrophy. DESIGN A computer search was carried out (MEDLINE 1966-97, CINAHL 1982-97) using the key words muscular dystrophy, rehabilitation, locomotion, braces or orthotic devices. References in relevant publications and nonindexed journals were als...