In this paper a human upper limb robotic system is analyzed through an experimental study. The experimental analysis aim is to validate this robotic system type in order to use it in some kinetotherapy programs for the human upper limb recovery. The robotic system experimental research was performed by using equipment called SIMI Motion which enables to evaluate angular variations in 2D environment. Through this equipment used we establish the angular variations developed at the robotic system joints level. This paper consists of three main parts. In the first part there is an actual study of the robotic systems specially designed for the human upper limb rehabilitation, and in second part, the robotic system proposed for this experimental research is described. In the third part the experimental research is described in detail.

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A 28-year-old woman, with incomplete spinal cord injury at the C2 level, classified as American Spinal Injury Impairment Scale C (AIS), participated in a robotic rehabilitation program 29 months after injury. Robotic training was provided to both upper extremi-ties using the MAHI Exo-II, an exoskeleton device designed for rehabilitation of the upper limb, for 12 × 3-h sessions over 4 weeks. Training involved elbow flexion/extension, forearm supination/pronation, wrist flexion/extension, and radial/ulnar deviation.
Results: Outcome measures were Action Research Arm Test, Jebsen-Taylor Hand Function Test, and AIS-upper extremity motor score. Sa-fety measures included fatigue, pain and discomfort level using a 5-point rating scale. Following training, improvements were ob-served in the left arm and hand function, whereas the right arm and hand function showed no improvement in any of the functional outcome measures. No excessive pain, discomfort or fatigue was reported. Conclusion: Data from one subject demonstrate valuable information on the feasibility, safety and effectiveness of robotic-assisted training of upper-extremity motor functions after in-complete spinal cord injury.

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While most mobility options for persons with paraple-gia or paraparesis employ wheeled solutions, significant adverse health, psychological, and social consequ-ences result from wheelchair confinement.Modern robotic exoskeleton devices for gait assistance and rehabilitation, however, can support legged locomotion systems for those with lower extremity weakness or paralysis. The Florida Institute for Human and Machine Cognition (IHMC) has developed the Mina, a proto-type sensorimotor robotic orthosis for mobility assistance that provides mobility capability for paraplegic and paraparetic users. This paper describes the initial concept, design goals, and methods of this wearable overground robotic mobility device, which uses compliant actuation to power the hip and knee joints. Paralyzed users can balance and walk using the device over level terrain with the assistance of forearm crutches employing a quadrupedal gait. We have initiated sensory substitution feedback mechanisms to augment user sensory perception of his or her lower extremities. Using this sensory feedback, we hypo-thesize that users will ambulate with a more natural, upright gait and will be able to directly control the gait parameters and respond to perturbations. This may allow bipedal (with minimal support) gait in fu-ture prototypes.

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For centuries, man has been building machines to serve his needs. With his ability to imagine and his creativity, he was able to nurture his thoughts and give rise to machines that would work for him incessantly and do his bidding. This enabled Man to exert his superiority over other species that roamed the earth. Over the centuries man’s needs have grown increasingly complex and as a consequence so has the level of sophistication of his Machines. The advanced functional capabilities of the human brain enabled man to mimic the features of the other species. One such adaptation is the Amour, an artificial Exoskeleton that Man has used for protection, especially in combat. An Exoskeleton is an external skeleton that supports and protects an animal’s body, for example the Tortoise, in contrast to the internal endoskeleton of, for example, a human. The concept of the Artificial Exoskeleton further evolved through the ages.

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John Register’s Olympic dreams were crushed while he was training for Atlanta in 1994. An improper landing from a hurdle jump hyper extended his knee, severing a leg artery and ultimately leading to an amputation. Register was faced with a choice between confinement to a wheelchair or a prosthesis followed by intense therapy and rehabilitation. The desire to be independent and mobile led him to opt for the latter. Register was fitted with an above-knee prosthetic leg. The limb consisted of soft, flexible plastic and carbon graphite with openings to allow the thigh muscles to grow. This was revolutionary compared to ordinary prosthetics, with their hard, rigid sockets. Non-pliable materials confine the muscles, causing them to atrophy. Prosthetic composition was a necessary consideration for John Register; compliant substances absorb the impact of heel strike, and the muscles can generate the necessary energy to move the knee and proceed through the stride. If the material is too compliant, there is not enough reaction force to propel the leg forward into swing phase. In this situation, the knee and hip must generate a large amount of force to continue the motion, costing the amputee a great amount of extra energy and work.

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