Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 17 of 17 for “"lower-limb amputees"”.
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Activity Monitor Accuracy for Lower-Limb Amputees Living in Colombia and Texas
<p>Maintaining physical activity for lower limb prosthesis wearers is important in order to reduce comorbidities and decrease physical function. Activity monitors can provide motivation for the wearer and outcome measurements for the health care professional. Two cohorts of lower extremity amputees …
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Dynamic Air Exchange Prosthesis: Effects on Heat Transfer and Limb Adherence for Active Lower Limb Amputees
Lower limb amputees are often dissatisfied with the comfort of their prosthesis. A literature review of 38 selected studies revealed that more than 53% of people with amputation experienced heat and/or perspiration discomfort inside their prostheses. Current prosthetic liners are usually made from …
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A prospective study of the role of hope in predicting adjustment in new lower limb amputees
The amputation of a lower limb represents a significant physical, practical and emotional challenge for the amputee, their family and services aiming to assist them. Previous research has indicated that psychosocial variables such as satisfaction with social support and active coping may be of …
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Gait analysis techniques to understand the effect of a hip strength improving program on lower-limb amputees
… ability to walk can be severely compromised by a lower-limb amputation, which can have long-reaching consequences to the individual’s health and safety. It has been reported that the high incidence of lower back pain and joint degradation experienced by lower-limb amputees can be attributed to the …
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Reactive stepping strategies following lateral surface translations in individuals with a unilateral lower limb amputation
… The stepping strategies that are used by lower limb amputees, which likely consist of unique properties because of the limitations when using a prosthesis, have not been thoroughly identified. Therefore, this study examined the lateral reactive stepping strategies used eight amputees and …
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From Lab to Outdoors: The Effects of Terrain, Environment, Amputation level, and Prosthetic Knee Type on Gait
… of amputee gait is needed, especially among amputees in developing countries. Field studies as well as prosthesis technology in developing countries are limited due to barriers associated with equipment and resources availability. Furthermore, individuals with lower limb amputation experience …
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A vibrotactile display design for the feedback of external prosthesis sensory information to the amputee wearer
… To assess the effectiveness of the system, lower-limb amputees were asked to learn the three haptic mappings and use the feedback system to control a virtual ankle to a desired ankle position using a physical knob interface. Results show an overall recognition rate of 85% for all three …
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A quantitative fluoroscopic study of the relationship between lumbar inter-vertebral and residual limb/socket kinematics in the coronal plane in adult male unilateral amputees. (Exploring the spine and lower limb kinematics of trans-tibial amputees).
Introduction Much of lower back pain (LBP) is thought to be mechanical in origin and lower limb amputees have an increased prevalence. There is also evidence that a large proportion of them also have altered spinal posture and it is commonly thought that the movement between the vertebrae …
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Modeling and design of perforated prosthetic sockets ARCHM to increase heat transfer of residual limbs
… is a significant problem experienced by many amputees in America, with no central solution in sight. Heat and discomfort accounts for over 70% of problems experienced by lower limb amputees in America. Although there have been advances in prosthetics in the active-power knees and ankles, not …
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Effect of Unilateral Lower-Limb Amputation on Intact Limb Biomechanics: A Systematic Review
… have explored the effects of the affected limb and prosthetic intervention yet have neglected that of the contralateral limb (De Asha et al., 2014; Jones et al., 2006; Winter & Sienko, 1988). Studies have reported an increase in secondary musculoskeletal conditions among unilateral …
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Biomechanical adaptations involved in ramp descent: Impact of microprocessor-controlled ankle-foot prothesis. Kinetic and kinematic responses to using microprocessor-controlled ankle-foot prosthesis in unilateral trans-tibial amputees during ramp descent
Ramp descent is a demanding task for trans-tibial amputees, due to the difficulty in controlling body weight progression over the prosthetic foot. A deeper understanding of the impact of foot function on ramp descent biomechanics is required to make recommendations for rehabilitation programs and …
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The development and evaluation of a novel passive approach to maintaining residuum volume in trans-tibial amputees
… of upright mobility is a common problem in lower limb amputees. A vacuum pump to reduce the in-socket air pressure has been shown to conserve residuum volume, but is expensive and not widely available. In this thesis an alternative (passive) approach to reducing pressures within the socket …
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Cognitive representations and attitudes as predictors of prosthetic use and recovery following lower limb amputation
Lower limb amputation is a common cause of activity limitations in Scotland with approximately 850 primary amputations being performed each year, 90% of which are caused by peripheral arterial disease. Approximately 65% of transtibial and 25% of transfemoral amputees are fitted with a prosthesis, …
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Design of a Novel Mechatronic System to Test Prosthetic Feet Under Specific Walking Activity Loads and Evaluate their Lower Leg Trajectory Error
Lower limb amputees, numbered at more than 40 million globally, are challenged with limited mobility due to prosthetic devices that do not fully restore the functionalities of their biological limbs. While commercially available energy storage and return feet do restore some of the functionalities …
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Development of a Solution Method to Promote Proper Bandaging Techniques for Transfemoral Amputees
Post-operative care for lower limb amputees focuses on reducing swelling and promoting healing of the residual limb. Healing and desired residual limb maturation is necessary to achieve a conical shape suitable for prosthesis integration. Elastic bandaging is applied to the residual limb to achieve …
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A novel hydraulic energy-storage-and-return prosthetic ankle : design, modelling and simulation
… This results in a metabolic cost ofwalking for lower-limb amputees higher than for anatomically intact subjects, combined witha reduced walking speed.Various research prototypes have been developed that mimic the energy storage and returnseen in anatomically intact subjects. Many are unpowered …
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Strength and Clinical evaluation of Self-reinforced Polymer Composite Prosthetic Sockets
… to fit comfortably on the amputee’s residual limb. The advanced prostheses costs maximum of $100k, which means that many of the 35-40 million amputees living in less-resourced nations cannot afford them due to the high cost and shortage of prosthetists. This problem is expected to become even …