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Effect of stimulation frequency and intensity on skeletal muscle fatigue during repetitive electrical stimulationKesar, Trisha. January 2006 (has links)
Thesis (M.S.)--University of Delaware, 2006. / Principal faculty advisor: Stuart A. Binder-Macleod, Dept. of Physical Therapy. Includes bibliographical references.
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Mitochondrial biogenesis in skeletal muscle : effect of chronic contractile activity, aging, and type 2 diabetes /Joseph, Anna-Maria. January 2008 (has links)
Thesis (Ph.D.)--York University, 2008. Graduate Programme in Biology. / Typescript. Includes bibliographical references. Also available on the Internet. MODE OF ACCESS via web browser by entering the following URL: http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&res_dat=xri:pqdiss&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&rft_dat=xri:pqdiss:NR51727
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Lean and obese zucker rats exhibit different patterns of p70S6kinase regulation in the tibialis anterior muscle in response to high force muscle contractionKatta, Anjaiah. January 2007 (has links)
Theses (M.S.)--Marshall University, 2007. / Title from document title page. Includes abstract. Document formatted into pages: contains vii, 96 p. Includes vitae. Bibliography: p. 87-92.
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Μηχανικά και χημικά σήματα που στοχεύουν στον οστεο-ειδικό μεταγραφικό παράγοντα Cbfa1: μεταγωγικά μονοπάτια και μεταγραφική ρύθμισηΖήρος, Πάνος Γ. 06 July 2010 (has links)
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Laboratory investigation of a simulated industrial task pre- and post-ergonomics interventionRenz, Miriam Christina January 2004 (has links)
The focus of the present study was on the investigation of the effects of an intervention strategy on an industrial task in situ and a simulation of the same task within a laboratory setting. The task of offloading crates from a truck at a local business was simulated in a laboratory setting for rigorous analysis. The effect of an ergonomically sound intervention on selected physical, physiological and perceptual variables was evaluated in a test - retest experimental set-up using 28 young, healthy male students. Each of the two experimental conditions lasted for 16 minutes. In the pre-intervention task subjects were required to transfer the crates from one point to another by sliding them along the floor. During the execution of the post-intervention task responses to reductions in the stacking height and modifications of the working method were evaluated. Results obtained for spinal kinematics during the simulated industrial task indicated a high biomechanical risk, due to large ranges of motion, high velocities and accelerations in the sagittal and transverse planes. The heavy workload of the task was also evident in elevated physiological responses (HR, RF, VT, VE, VO2, RQ, EE) and perceptual ratings (RPE, Body Discomfort). Assessment of the intervention strategy revealed that the high risk industrial task was reduced to moderate acceptable, with measurements of spinal kinematics, physiological and perceptual variables being significantly reduced. An in situ re-assessment of the workers responses to the intervention also elicited reductions in heart rates and perceptual ratings compared to the original task.
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Approach to a Performance-Related Musculoskeletal Disorder in a DrummerFleming, Hunter 29 April 2020 (has links)
Performance-related musculoskeletal disorders in musicians are common due to the biomechanics required in their craft. Unfortunately, injuries can cause many to abandon music, so determining the best approach to treatment and prevention is key. This case study’s importance is to evaluate the optimal approach to carpal tunnel syndrome in a drummer. The patient is a 55-year-old male full-time drummer with a history of diabetes mellitus and osteoarthritis, who presented to clinic with chronic bilateral hand numbness and tingling that had been present for years. The location of the symptoms were mainly in the palmar aspect of the 1st digit, 2nd digit, 3rd digit, and the radial side of the 4th digit. The symptoms had progressively been worsening, and his discomfort was initially rated at a 10/10 bilaterally. He had tried over-the-counter and prescription anti-inflammatory medications as well as braces without improvement. His physical exam was positive for Tinel’s sign. The diagnosis of carpal tunnel syndrome was eventually made. The patient was treated with bilateral ultrasound-guided carpal tunnel injections with lidocaine and methylprednisolone. The other component of treatment was relative rest, which allowed us to tailor treatment to his drumming. After treatment, his discomfort was rated at 0/10 bilaterally, and he was drumming without issue. It was found that relative rest and carpal tunnel injections are effective in treating carpal tunnel syndrome in drummers. His treatment was tailored to his specific instrument type, which was a key component to the success. Upon review, there is limited to no specific information on treating drummers as a specific group in the literature, but rather more information on treating musicians as a whole. Different instrumentalists have different postures and repetitive movements, so future studies would do well to examine the individual biomechanics of the different instrumentalists to better tailor treatment and prevention.
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Musculo-skeletal dynamics and multiprocessor control of a biped model in a turning maneuver /Chen, Ben-Ren January 1985 (has links)
No description available.
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Ultrastructural, histochemical, and biochemical changes in the rat soleus muscle following tenotomy and tendinoplasty /Inpanbutr, Nongnuch January 1985 (has links)
No description available.
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A Hybrid System for Simulation of Athletic Activities Related to Lower Extremity BiomechanicsUnknown Date (has links)
In this dissertation, the design and development of a hybrid robotic system that
simulates dynamic biomechanical tasks of the lower extremity with emphasis on knee
and hip joints are presented. The hybrid system utilizes a mechanical hip and a cadaveric
knee/ankle component and can accelerate the whole complex towards the ground. This
system is used to simulate complex athletic movements such as landing from a jump at
various anatomical orientations of the lower extremity with muscle action. The dynamic
response of the lower extremity is monitored and analyzed during impulsive contact
between the ground and the cadaveric leg. The cadaveric knee is instrumented to measure
strain of the Anterior Cruciate Ligament (ACL) during simulated high impact sports
activities. The mechanical hip allows various kinematics of the hip including flexion as
well as abduction. In addition to the flexion and abduction of the mechanical hip, the
controlled flexion and extension of the cadaveric knee allows for simulation of complex
tasks such as landing from a jump. A large number of tests were performed at various anatomical positions utilizing this device to simulate landing from a jump. ACL strain
was measured during these tasks using a Differential Variance Resistance Transducer
(DVRT). Ground Reaction Force and muscle forces were measured and monitored using
AmCell load cells recorded using the LabView software. one-inch and 6-inch jump
landing heights were used for all the simulations. The tests were performed at differing
angles of hip flexion (0°, 30°, 45°, 60°) and at two different ankle positions. Plantar
flexion and flat-footed landing conditions were simulated and compared in all degrees of
hip flexion. These tests were repeated with and without hip abduction in order to study
the effects of these landing positions on ACL strain. Hip flexion was found to effect ACL
strain: as angle of hip flexion increases, ACL strain decreases. This occurred in both
abducted and non-abducted hip positions. Ankle landing position had an effect only in
small drop heights, while hip abduction had an effect in large drops. Future tests must be
completed to further study these effects. These studies showed that the robotic system can
simulate dynamic tasks, apply muscle forces, and move the cadaveric tissue in three
dimensional biomechanical positions. / Includes bibliography. / Dissertation (Ph.D.)--Florida Atlantic University, 2017. / FAU Electronic Theses and Dissertations Collection
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Inorganic phosphate uptake in rat skeletal muscleAbraham, Kirk A., January 2003 (has links)
Thesis (Ph. D.)--University of Missouri--Columbia, 2003. / Typescript. Vita. Includes bibliographical references (leaves 63-74). Also available on the Internet.
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