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Showing 1 to 20 of 128 for “"Gastrocnemius"”.
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Force Dynamics of the Rat Lateral Gastrocnemius Muscle after Undergoing Sensory Protection
… dynamics and muscle architecture of the lateral gastrocnemius muscle in a rat animal model. Using a within-subjects experimental design, this preliminary study compared Sensory Protected and contralateral Intact muscles within a cohort of four rats. In situ ergometry experiments suggest that …
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Blood vascular pattern to and through the gastrocnemius of the sedentary male rat
Thesis (M.A.)--Michigan State University. Dept. of Physical Education, College of Education, 1968
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Muscle fiber size and fiber to capillary ratio of the gastrocnemius muscle of sedentary adult rats
Thesis (M.S.)--Michigan State University. Dept. of Anataomy, College of Veterinary Medicine, 1964
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Knotless bidirectional barbed versus smooth polypropylene three-loop pulley sutures for repair of canine gastrocnemius tendon
… tendon complex is primarily composed of the gastrocnemius tendon, with smaller contributions from the superficial digital flexor tendon and the common tendon of the biceps femoris, semitendinosus and gracilis muscles. The primary goal in tendon repair is to provide strength appropriate to …
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An evaluation of gastrocnemius muscle structure and function in endurance runners and low physical activity individuals
… popular in recreational runners. The gastrocnemius is the main muscle used for propulsion in running, and may be at risk for injury due to its morphology. In previous studies, changes in the morphology and architecture of the gastrocnemius muscle have been evident following training, …
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Changes in gait speed, gastrocnemius strength, and center of pressure for individuals living with Parkinson's disease
… of changes in center of pressure data, gastrocnemius strength, and gait speed with those living with PD and their healthy peers. Participants: This study included a sample of convenience of 65 individuals with PD and 25 community dwelling adults. Methods: Data collected included 6 Minute …
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Imaging displacement and strain in the medial gastrocnemius muscle during ankle-joint motion using 2D-ciné DENSE MRI
Skeletal muscle structure has been defined on both macro and microscopic levels by gross dissection, light- and electron-microscopy. The basic physiological building blocks involve the electromechanical coupling between interlinking actin and myosin fibres. Detailed intramuscular behaviour during …
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Gastrocnemius muscle structure and function in habitually resistance-trained marathon runners and traditionally running-trained marathon runners: a comparative analysis
… Aim: The aim of this study was to evaluate gastrocnemius muscle structure and function in marathon runners who performed habitual resistance training in addition to regular endurance training, compared to marathon runners who performed traditional endurance running training only. Specific …
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Effects of 28 days of protein and amino acid supplementation and ankle immobilization on gastrocnemius muscle mass and strength and atrophy- and apoptosis-related gene expression in males.
… in humans attenuated decreases in: 1) gastrocnemius muscle mass, 2) plantar flexion strength, 3) and expression of genes associated with the ubiquitin proteolytic pathway (UPS) and calcium-activated proteolytic system (CAS). A secondary purpose was to assess the safety of 28-days of …
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Visualizing muscular fatigue during running exercises with electromyography-derived variables.
… occurred in the leg muscles, specifically both gastrocnemius muscles and the vastus lateralis, during a running trial using electromyography to record the muscle activation signals. Post-processing methods calculated four parameters to detect fatigue: mean frequency, root mean square amplitude, …
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THE ROLE OF SKELETAL MUSCLE SYNTHESIZED BRAIN-DERIVED NEUROTROPHIC FACTOR (BDNF) ON THE HEALTH AND MAINTENANCE OF THE MURINE MOTOR UNIT
… MuscleBDNF<sup>-/-</sup>). We examined gastrocnemius and soleus muscles across multiple age groups (30, 90, 120, 180, and 210 days), assessing myofiber health in the absence or reduction of skeletal-derived BDNF. Significant pathology was observed in gastrocnemius tissues of both young …
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The Effects of Aging on Muscle Loss and Nuclear Factor Kappa-B Levels in Rats Fed a Diet Containing Suboptimal Leucine Levels
… between age groups. However the average mass of gastrocnemius and soleus muscles (g muscle/g BW) was significantly lower in old rats. Reduction in gastrocnemius (g muscle/g BW*10²) was associated with 1.8 fold higher muscle cell NF-κB in old vs. adult rats (p = 0.0443). There was also a higher …
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The effectiveness of manipulation combined with static stretching of the gastrocnemius-soleus complex compared to manipulation alone in the treatment of subacute and chronic grades I and II ankle inversion sprains
A dissertation presented in partial compliance with the requirements for the Master's Degree in Technology: Chiropractic, Technikon Natal, Durban, South Africa, 2001.
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Development and evaluation of biarticular transtibial prostheses for level-ground amputee walking
… biological ankle-foot complex. In contrast, the gastrocnemius calf muscle spans both the ankle and knee joint, and thus provides biarticular function. Therefore, it may be prudent for transtibial prostheses to include actuation at both the ankle and knee joints of an affected limb. This thesis …
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Gene action involved with reproduction and growth of brain and muscle in weight-selected lines of chickens
… growth and cellular content of pectoralis and gastrocnemius muscles in populations HH, LL and F₁ from hatch to day 273. HH chicks had a smaller DNA unit size and a greater unit number than LL chicks at hatch. During rapid muscle growth, cell size was larger for HH than LL chickens. Pectoralis …
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The effect of reactive oxygen species on aged skeletal muscle
… the deleterious effects of ROS. Using isolated gastrocnemius SR vesicles extracted from adult (12m) and aged (27m) male Brown Norway-Fischer 344 hybrid rats, Ca2+ uptake and release measurements were obtained. The data showed that there was a 33% difference between aged and adult gastrocnemius …
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Quantitative genetics and metabolomics of aerobic metabolism
… the membrane FA composition of liver and gastrocnemius muscle in mice after 7 generations of selection for increased MMR (high-MMR). Although mass-independent BMR was 3.5% higher in high-MMR mice, the liver UI was not higher than in control mice. Concentration of 16:0 and 18:0 FAs were …
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Muscle Dynamics as the Result of Whole Body Vibration and Plyometrics
… or Vertec), velocity, force, blood lactates, gastrocnemius and quadriceps strength, and exertion (RPE). Subjects were measured at the first, seventh, and eighteenth visits. C group attended measurements only. J and JV groups performed jumping from a vibrating platform (turned off for J and on …
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Muscle guarding during Kt-1000 testing as measured by electromyography
… the Biceps femoris (BF), the lateral head of the Gastrocnemius (LG), and the medial head of the Gastrocnemius. The resting test (Zero Newtons) involved placing the KT-1000 on a participant but not applying any force. The 89 Newton (89N) test involved pulling the KT-1000 anteriorly with 89 Newtons …
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