Global ETD Search
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Showing 1 to 13 of 13 for “"Muscle responses"”.
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Dynamic proteome profiling of human muscle responses to high-intensity interval training
Skeletal muscle is the most abundant tissue in the body and it plays a central role in whole-body metabolism. Physical inactivity and obesity are associated with poor metabolic health due to insulin resistance of peripheral tissues, in particular skeletal muscle. Conversely, a physically active …
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Muscle responses to stretching and developing effective interventions in children with cerebral palsy
… to the musculoskeletal system such as a reduced muscle length, increased tendon length and an increase in joint stiffness are commonly treated by physiotherapy interventions such as stretching exercises. However, the effectiveness of these interventions in terms of improvements in function is of …
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Model analysis of oxygen transport and metabolism in skeletal muscle: responses to a change in energy demand
<p>The increase in skeletal muscle oxygen consumption (VO<sub>2</sub>) at the onset of contraction is an indicator of the ability to do work. The VO<sub>2</sub> response to contraction (i.e., VO<sub>2</sub> kinetics) is determined by oxygen delivery (convective and diffusive) to tissue, oxygen …
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The Role of Voluntary Descending Control in Enhancing Motor Function Via Transcutaneous Spinal Cord Stimulation
… descending control in influencing reflex responses triggered by tSCS.</p> <p>Electromyography (EMG) recordings were performed in ten unimpaired individuals while they engaged in torque control tasks with varying amplitudes of tSCS. Muscle responses recorded during isometric dorsiflexion …
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Understanding the body’s kinematic/kinetic responses and motor adaptation to unpredictable gait perturbation induced by a split-belt treadmill in young and older adults
… elders. Age-related changes (e.g., decline in muscle strength and the function of the neuromuscular system) affect balance control in older adults, which contributes to higher fall rates. Although physical exercises (e.g., balance, ambulatory, and resistance training) have been utilized to …
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The effect of idiopathic Parkinson's disease on seated trunk reactions
… (forward, backward, left, and right). EMG responses were normalized to participant’s maximum voluntary contractions. We observed patients with IPD to have decreased active and passive ROM only in the frontal plane relative to controls. Patterning of muscle responses to rotational …
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Occupant Responses of Relaxed and Braced 5th Percentile Female and 50th Percentile Male Volunteers during Low-Speed Frontal and Frontal-Oblique Sled Tests
… braking necessitates understanding of occupant responses during low-speed frontal pre-crash braking and low-severity crash events. Active human body models (HBMs) have emerged as valuable tools to evaluate occupant safety during these events, but must be validated with relevant volunteer data to …
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Neuromuscular Consequences Following Anterior Cruciate Ligament Reconstruction
… reflexes (H-reflex) normalized to maximal muscle responses (H:M) were used to assess quadriceps spinal-reflexive excitability. Electrical stimulus was applied to the femoral nerve and was increased in 0.2volt increments until a maximum H-reflex was elicited. The stimulus was then increased …
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Empirical Evaluation of Models Used to Predict Torso Muscle Recruitment Patterns
… the internal forces produced by back muscles have not been determined accurately. Two different approaches have historically been taken to predict muscle forces. The first relies on electromyography (EMG), while the second attempts to predict muscle responses using mathematical models. …
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Transcriptomic Signatures of Skeletal Muscle Adaptation: Disuse, Rehabilitation, and Resistance Exercise Intervention
Skeletal muscle, a dynamic tissue essential for movement and metabolic regulation, undergoes significant changes with age, leading to sarcopenia characterized by muscle mass decline and functional impairment. Moreover, short-term inactivity exacerbates sarcopenia, necessitating effective …
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The Acute and Chronic Muscle Adaptations Following six weeks of "No Load" and Traditional High Load Resistance Training
Muscle growth is postulated to occur through mechanisms initiated by local muscle tension. This appears to be true, independent of the external load, provided sufficient tension is achieved. PURPOSE: The purpose of this study was to remove the influence of an external load and compare the acute and …
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Alterations and Asymmetries in Trunk Mechanics and Neuromuscular Control among Persons with Lower-Limb Amputation: Exploring Potential Pathways of Low Back Pain
… and/or the coordination of surrounding trunk muscle responses. Further, preferential use of the sound limb may lead to asymmetries in these behaviors. Spine biomechanics (e.g., loading and stability) are substantially influenced by trunk passive properties and neuromuscular control, and …
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Multi-Scale Modeling for Analysis and Design of Transcranial Electric and Magnetic Brain Stimulation
… differences in the latencies and thresholds of muscle responses to TMS of motor cortex. We also quantified the subthreshold polarization generated by conventional tDCS with large rectangular pad electrodes and 4×1 high definition (HD) tDCS electrodes targeting the motor hand knob. Axonal and …