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 20 of 381 for “"Isometric"”.
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A study of isometric and pulsed isometric fatigue of the digital flexor muscle group
<p>http://www.worldcat.org/oclc/28346956</p>
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Non-isometric 3D shape registration.
… of size and pose. With the large (usually non-isometric) deformation between them, the shear distortion can easily occur, which may lead to poor results, such as degenerated triangles, fold-overs. Before deforming the template towards the target, reliable correspondences between them should be …
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Required force level and isometric tracking
An isometric, zero-order (position), one dimensional pursuit tracking task was used to investigated the effects of alterations in the speed of target movement and the control/response ratio (C/R ratio) on human tracking performance. The speed of target movement was varied through different …
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Preparation of isometric methyl derivitives of diazobenzene-acetoacetanilides
no abstract provided by author
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Characteristics of muscle co-contraction during isometric tracking
… manual tracking task. The study employed an isometric, zero order, pursuit tracking task with a laterally translating, periodic sine wave forcing function. The speed of the target was varied by altering the Frequency (3 levels) of the simple sine wave. The control/response ratio for each …
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Effects of isometric elbow flexion on electromyographic spike analysis
… in age (18-35 years), generated three 5-second isometric step contractions at each force level of 40, 60, 80, and 100 percent of maximal voluntary contraction (MVC). The presentation of the contractions was balanced across subjects. The right arm of the subject was positioned in the sagittal …
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Estimation of isometric recruitment curves of electrically stimulated muscle
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 1988.
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Localized muscle fatigue during isotonic and nonisotonic isometric efforts
Work-related musculoskeletal disorders (WMSDs) are prevalent in the workplace, and epidemiology studies show that these problems do not tend to diminish. While the use of new and advanced technology has substantially reduced the amount of physical workload, repetitive manual activities are still …
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Low Back Biomechanical Analysis of Isometric Pushing and Pulling Tasks
… of trunk musculature was quantified during isometric pushing and pulling tasks. The mean value of co-contraction during pushing was two-fold greater (p < 0.01) than during extension. Co-contraction has been shown to increase the stiffness of the ankle but this effect has not been …
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Neuromuscular adaptations of joint angle-specific force change after isometric training
Increases in force production in response to isometric training typically occur at or around the joint angles adopted during the training, but the mechanisms underpinning this have not yet been fully elucidated. This PhD thesis project investigated the mechanisms underpinning joint angle-specific …
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Comparing fatigue induced by isometric and shortening contractions in skeletal muscle
… in force during shortening compared with isometric contractions is not completely understood. The focus of this thesis was to compare fatigue in repeated shortening contractions and isometric contractions and investigate if greater force loss during repeated shortening contractions is …
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Training distribution and the acquisition of maximal isometric elbow flexion strength
… The massed group (n=13) completed 15 maximal isometric elbow flexion strength trials in one session, while the distributed group (n=13) performed five such contractions on three successive days. After a two-week and three month rest interval, both groups returned to perfonn another five …
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Isometric Immersions and Embeddings of Nonnegatively Curved Hypersurfaces in Hyperbolic Space
Embargo set by: Seth Robbins for item 71390 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs
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Optimization-based biomechanical evaluation of isometric exertions on a brake wheel
Low-back pain and injury claims account for a large number of occupational illnesses each year. In the railroad industry, many maintenance and operation activities require a high degree of manual labor, often resulting in increased stress on the lowback. One of the most common functions of railroad …
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A Comparison of Isometric and Isotonic Exercises as Methods of Building Strength
… exercises (weight lifting) with selected isometric exercises against a control group as means of building strength.
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The reliability of an isometric test based on constant perception of effort
… procedure to extrapolate findings of an isometric nature to a whole body performance setting. The purpose of this study was to quantify the reliability of perceived exertion to control neuromuscular output during an isometric contraction. 21 varsity athletes completed a maximal voluntary …
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Neuromuscular responses to an isometric force and position task during passive hyperthermia
… sought to compare neuromuscular responses of an isometric force and position task during passive hyperthermia, and the relative contributions of rectal (Tre) and skin (T ̅sk) temperature afferents. Surface electromyography (sEMG) was used to assess the electrical activity of the flexor carpi …
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The surface electromyography-force relationship during isometric dorsiflexion in males and females
… (50 males and 50 females) performed three isometric contractions at 20, 40, 60, 80, and 100% of maximal voluntary contraction (MVC) in an apparatus designed to isolate the action of the dorsiflexors. The surface EMG signal was amplified (lOOOx), band-pass filtered (10-500Hz), and sampled at …
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Discrimination between sincere and deceptive isometric grip response using Segmental Curve Analysis
… between trial variability of the measures of the isometric peak force, time to peak force, area to peak force, area under the curve, slope (20%-80%), and the average slope of subjects assigned to perform a series of four isometric grip strength contractions and to develop a discriminant function …
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