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 19 of 19 for “"Stair climbing."”.
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Autonomous stair climbing
… a small highly mobile tactical robot to climb stairs autonomously. A subsumption architecture is used to coordinate and control the maneuver. Various approaches to the problem including evolved architectures and use of contraction analysis are explored. Code was written and tested for …
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Stair climbing wheelchair accessory device
Thesis: B.S., Massachusetts Institute of Technology, Department of Mechanical Engineering, 1991
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Design of a stair-climbing hand truck
… to negotiate a street curb or a short flight of stairs. The objective of this thesis was to design and test a consumer-grade hand truck capable of climbing stairs. Several designs were conceived that would allow a non-industrial hand truck to travel over stairs, curbs, or uneven terrain while …
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Enhancing human metabolic economy in stair climbing via an elastic crutch mechanism
… has been studied in many different forms, stair climbing is a more energetically taxing activity and the upper arm and shoulder strength required is not always available in weaker or severely injured patients. We posit that the introduction of parallel springs spanning the elbow joint will …
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Design and manufacturing proposal for a stair-climbing wheelchair without an external power source
… The only other option for the disabled to ascend stairs is to purchase a high-tech battery-operated wheelchair with elaborate sensors and gyroscopes, which can cost around $25,000. As a result, there is a high demand for a cheap and efficient way to climb stairs with a practical wheelchair. With …
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Effect of various speeds on kinematic and kinetic factors during walking on a stair climbing machine
… 95 equivalent 8 inch steps/min) in walking on stair climbing machines. A secondary purpose was to determine if there were any differences in terms of kinematic and kinetic factors between experienced and inexperienced subjects.
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The effectiveness of contextual cues in encouraging stair use
Stair climbing is an ideal activity to promote in worksites due to its availability and associated health benefits. To date findings are equivocal regarding stair climbing intervention success in this setting, thus more research is needed. Chapter two of this thesis confirmed that a calorific …
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The effects of using a lateral wedge insole on knee loading during ascending and descending stairs
Introduction: Stair climbing demands, compared to walking on level ground, a greaterrange of motion in the lower extremity accompanied by about six times more load on theknee joint. Consequently, pain while stair climbing is the first complaint in patients withknee osteoarthritis (OA). The use of …
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Design, Test, and Evaluation of a High Powered 4 DOF Prosthetic Leg for Transfemoral Amputees
… but not limited to, walking, running, and stair climbing.
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Design and control of powered lower limb prostheses
… The results include an integrated walking – stair climbing controller and a sit-to-stand controller. Both were developed based on biomechanical analysis of the knee dynamics in human locomotion. In the walking – stair climbing control system, an improved finite state impedance controller was …
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High-intensity aerobic and resistance training for metabolic syndrome
… mean age = 55 years) assessed the efficacy of a stair climbing HIIT protocol for MetS (Chapters 4-5). The intervention was compared to supervised walking thrice weekly and an active control group that was prescribed the current exercise guidelines. Brief intervals of stair climbing did not affect …
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ACTIVE HIP ACTUATION FOR WALKING BIPED WITH PASSIVE OPTION
… that requires turning, rough terrain, and stair climbing.
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Traffic Flow on Escalators and Moving Walkways: Quantifying and Modeling Pedestrian Behavior in a Continuously Moving System
… created. In addition to implementing walking and stair climbing capabilities from existing pedestrian flow literature, the model utilized following behavior and lane change decision logic taken form studies performed in the field of automotive traffic flow theory. By combining research from these …
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Influence of Overall Habitual Physical Activity on the Age-Related Change in Muscle Mass in 60 to 85 Year-Olds
… speed of gait, speed of ascending and descending stairs, and balance. The 36 men and 46 women (initial mean age 65.6 +/- 6.9 years, weight 71.3 +/- 12.5 kg, height 168 +/- 10.1 cm.) were tested twice 7 years apart. Dual energy x-ray absorptiometry showed reductions (p < 0.05) in appendicular …
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Modeling the Long Term Effects of Alendronate on Bone Mass Preservation of the Femur with Articular Surface and Total Hip Replacements
… loading conditions representative of walking and stair climbing. The model was allowed to evolve from an initial state of homogenous density to a steady state form with a density similar to that of the femur. Reduced loading representative of decreased muscle forces were applied to the steady …
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Physical Activity, Estrogen Replacement Therapy and Bone Mineral Density in Early Postmenopausal Women
… than 1500 kcal/week, estimated from walking, stair climbing, and sport and recreational activity participation. The physical activity groups were divided into two subgroups on the basis of use or avoidance of estrogen replacement therapy (ERT). It was hypothesized that the high physical …
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Investigating the impact of interacting with real world objects in virtual environments.
… world. Incorporating physical objects such as stairs in to virtual reality could provide better immersion and create new uses for these systems. This study investigated what impact interacting with a physical object in the virtual environment has on human motion. A small change in motion in the …
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TRANSLATIONAL APPROACH TO NEUROMUSCULAR FUNCTION AND ITS RECOVERY: EFFECT OF LIMBS, AGING, AND DISEASE.
… affects functional performance tasks such as stair climbing, ambulation, and rising time from a chair, affecting neuromuscular function, it is of interest to investigate muscle force and power fatigability. Sarcopenia, a highly prevalent disease in older than 65 years, exacerbates age-related …