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- Biomechanics (3)
- Coordination (2)
- Metabolic cost (2)
- Walking (2)
- Amputee (1)
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- Bipedalism (1)
- Cadence (1)
- Chimpanzee (1)
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- Object Transport (1)
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- Physical activity (1)
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- Steps (1)
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Articles 1 - 6 of 6
Full-Text Articles in Life Sciences
Metabolic Cost Of Asymmetrical Walking: Preferred Step Time Asymmetry Optimizes Metabolic Cost Of Walking, Jan Stenum
Metabolic Cost Of Asymmetrical Walking: Preferred Step Time Asymmetry Optimizes Metabolic Cost Of Walking, Jan Stenum
Doctoral Dissertations
Hemiparetic and amputee walking often has asymmetrical step lengths and step times, and it is metabolically costlier than symmetrical able-bodied walking. Consequently, asymmetry has been suggested to account for the greater energy expenditure, but the metabolic cost of asymmetrical walking is poorly understood. Conversely, even though symmetry is metabolically optimal in able-bodied walking, it is also possible that asymmetrical gait parameters may be selected if they are optimal under imposed constraints. First, to understand the metabolic cost of asymmetry, we performed experiment 1 in which we recruited 10 able-bodied subjects to walk with a range of different combinations of asymmetrical …
The Roles Of Morphology And Posture On Gait Mechanics, Russell T. Johnson
The Roles Of Morphology And Posture On Gait Mechanics, Russell T. Johnson
Doctoral Dissertations
Humans walk with an upright posture, extended limbs during stance, and a double-peaked vertical ground reaction force. Our closest living relatives, chimpanzees, sometimes walk bipedally but do so with a flexed, abducted hind limb. Previous researchers have studied humans walking with a crouched, chimpanzee-like gait pattern to try to infer how extinct human ancestors walked. However, it is not clear if the way humans perform this crouched posture gait would be similar to the way a species that is adapted to walk with a crouched posture would walk. The purpose of this dissertation was to investigate the impact of morphology …
Walking For Object Transport: An Examination Of The Coordinative Adaptations To Locomotor, Perceptual, And Manual Task Constraints, Avelino Amado
Walking For Object Transport: An Examination Of The Coordinative Adaptations To Locomotor, Perceptual, And Manual Task Constraints, Avelino Amado
Doctoral Dissertations
The goal of this dissertation was to understand how the intrinsic dynamics of gait adapt to support the performance of an ecologically relevant object transport task. A common object transport task is walking with a cup of water. Because the water can move relatively independent of the cup, the cup and water system is classified as a complex object. To model this task participants carried a cup with a wooden lid placed on top. On the lid there was a circular region with the same circumference as the cup and a ball. The object of the task was to keep …
Metabolic Cost And Stability Of Locomotion In People With Lower Limb Amputation, Ryan Wedge
Metabolic Cost And Stability Of Locomotion In People With Lower Limb Amputation, Ryan Wedge
Doctoral Dissertations
It is generally accepted that metabolic energy expenditure and gait stability are key factors that influence the selection of able-bodied locomotor patterns. It is unclear how energy expenditure and gait stability are prioritized during walking in people with lower limb amputation. People with lower limb amputation generally have greater metabolic energy expenditure during walking and increased incidence of falls. People with unilateral lower limb amputation spend more time on the intact limb compared with the prosthetic limb, while able-bodied individuals generally walk with symmetrical timing between limbs. Restoring symmetry is often a goal of rehabilitation and assistive devices, yet the …
Development And Cross-Validation Of A Cadence-Based Metabolic Equation For Walking, Christopher C. Moore
Development And Cross-Validation Of A Cadence-Based Metabolic Equation For Walking, Christopher C. Moore
Masters Theses
Changes In Muscle Control And Coordination In Novel Task Learning, Sangsoo Park
Changes In Muscle Control And Coordination In Novel Task Learning, Sangsoo Park
Doctoral Dissertations
Learning many daily life motor skills is critical for survival and the quality of living in humans. As children, we develop walking and running patterns to move the body from point A to B without falling, and we learn to grasp a wide variety of objects during activities of daily living. Motor skills can be properly performed by appropriate muscle activations which are controlled by the central nervous system. How does the central nervous system develop and fine-tune its control strategy to learn a new motor skill? The aim of this dissertation was to better understand how human participants alter …