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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 134 for “"quadriceps"”.
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Characterization of Quadriceps Neuromuscular Function in Knee Osteoarthritis
… The purpose of this thesis was to characterize quadriceps neuromuscular dysfunction in patients with knee osteoarthritis (OA). Concerns pertaining to study design in this patient population (e.g. disease severity criteria and muscle imaging outcome measures) were also addressed. METHODS: Five …
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Identifying Dosage Effect of LEDT on Muscular Fatigue in Quadriceps
… by LEDT on six points across the superficial quadriceps. Each randomized trial consisted of a placebo, 30 seconds, 60 seconds or 120 seconds on each point on the quadriceps. Three minutes after LEDT, the participants performed an eccentric leg extension with 120% of MVIC until fatigue. There …
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Hamstring/quadriceps strength ratios: An analysis and a strength training study
This study was performed to examine the hamstring:quadriceps (H:Q) ratios of female soccer athletes, and to test the effects of a six week strength training program on these ratios. Twelve NCAA Division I female soccer athletes volunteered for this study. Subjects completed two practice sessions, a …
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Effects of Quadriceps Fatigue on the Outcomes of Slips and Falls
… was to examine how lower extremity fatigue (quadriceps) alters gait parameters and increases slip severity. Sixteen healthy young participants were recruited to walk across an unexpected slippery floor in two different sessions (Fatigue and No fatigue). Kinematic and kinetic data were …
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The Effects of Cryotherapy on Quadriceps Corticospinal Excitability in Patients withPatellofemoral Pain
… study was to determine if cryotherapy can alter quadriceps corticospinal excitability in patients with patellofemoral pain. Design and Setting: A blinded, crossover study was conducted in a laboratory setting. Subjects: Eight patients (1 male, 7 females; 19.6±1.11 years; 163.37±10.27 cm; …
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FUNCTIONAL HAMSTRING: QUADRICEPS RATIO AND HAMSTRING INJURY INCIDENCE IN TRACK AND FIELD ATHLETES
… and competition. Functional hamstring to quadriceps strength ratio was measured to study muscular imbalances in these athletes. The hypotheses were: 1) Athletes with previous hamstring injuries have a greater chance of subsequent hamstring injury whether or not they have a functional ratio …
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A comparison of the "Oxford" and DeLorme techniques in development of the quadriceps
Thesis (M.A.)--Michigan State University of Agriculture and Applied Science. Dept. of Health, Physical Education and Recreation, 1957
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Reflex inhibition of the human quadriceps in the presence of knee joint damage
Quadriceps weakness can occur by atrophy and by reflex inhibition due to stimuli from a damaged knee joint. The mechanisms by which quadriceps weakness occurs are not understood enough to allow weakness to be prevented. The nature of reflex inhibition has been studied in patients undergoing …
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The Relationship Between the Hamstrings to Quadriceps Strength Ratio and Anterior Cruciate Ligament Forces
… (OA). Forces developed by the hamstrings and quadriceps have been found to decrease and increase forces on the ACL, respectively. Thus, some believe that the ratio of the strengths of these muscles groups (the H:Q strength ratio) is relevant when discussing ACL forces; a low H:Q ratio …
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Quadriceps Avoidance Characteristics of Persons with a Reconstructed Anterior Cruciate Ligament during a Forward Lunge
… develop a compensatory mechanism called quadriceps avoidance where the use of the quadriceps is avoided and greater knee flexion is demonstrated during gait. Quadriceps avoidance is considered to be an abnormal movement pattern that can have negative effects after ACL reconstruction …
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The Immediate Effects of Electromyographic Biofeedback on Corticomotor Excitability of the Quadriceps in Healthy Individuals
… The participants then performed a MVIC of the quadriceps. When maximal effort plateaued a stimulus was given and the MEP peak-to-peak amplitude was recorded for analysis. This was performed for 5 consecutive trials with 60 seconds of rest between each MVIC. During the electromyographic …
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Age Related Differences in Motor Output Variability During Isometric, Concentric and Eccentric Quadriceps Femoris Muscle Contractions
… and discrete eccentric contractions of the quadriceps femoris. Of particular interest was to model variability of force during continuous and discrete isometric contractions. Participants were 24 young (25.3 +/- 2.8 years) and 24 elderly individuals (73.3 +/- 5.5 years) that were active, …
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An Investigation Into Isokinetic Normative Data of the Quadriceps and Hamstrings Muscles of Males and Females, Ages 36 Through 40
… establishes (selected) normative data for the quadriceps and hamstrings muscles of males and females ages 36 through 40.</p><p>Sixty adults, meeting specific age, medical, and activity requirements were tested on the Cybex II System. Reciprocal contractions of the quadriceps and hamstrings were …
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Influence of Thigh Muscle Forces on Anterior Cruciate Ligament Forces during Single-Leg Landing from Three Different Heights
… being spent on the ACL annually. While the quadriceps muscle produces an anterior shear force on the tibia that causes the ACL to strain, the hamstrings muscle can protect the ACL by producing a posterior shear force to the tibia reducing the strain. When the hamstrings contract …
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Injuries of the knee joint
THE IMPORTANCE OF THE QUADRICEPS Cornparative anatomy 1. Relation of derangement of nieclranísni to evolution 1. Quadriceps insufficiency 2. Importance of active exercise 2. Vastus medialis 3. Quadriceps exercises 3,
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The effect of high intensity training on the angle-torque relationship of the quadriceps and hamstring muscles in a group of well-trained cyclists
Includes abstract. Includes bibliographical references (leaves 69-74).
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Acute and Chronic Effects of Botulinum Toxin Type-A on the structure and Function of the Quadriceps Femoris Muscles of New Zealand White Rabbits
… in injected and contralateral non-injected quadriceps muscles of New Zealand White (NZW) rabbits following single and repeated BTX-A injections. Muscle mass was assessed as the wet weight of muscles following sacrifice, strength was assessed by stimulating the knee extensor muscles via …
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