نتایج جستجو برای: chronic muscle
تعداد نتایج: 803452 فیلتر نتایج به سال:
AIMS To investigate skeletal muscle in patients with chronic heart failure and controls, and relate skeletal muscle variables to functional class, exercise capacity, central haemodynamics, muscle strength and medical treatment. METHODS Biopsy from the lateral vastus muscle was obtained in 43 patients and 20 controls. Right sided heart catheterization was performed in 19 patients and maximal e...
The physiological stress response results in release of glucocorticoid hormones such as corticosterone (CORT). Whereas short-term activation of this response helps animals cope with environmental stressors, chronic activation can result in negative effects including metabolic dysregulation and reproductive failure. However, there is no consensus hormonal profile of a chronically stressed animal...
BACKGROUND Flexor hallucis longus tendon (FHLT) transfer has become a popular method for reconstructing a chronic Achilles tendon rupture (ATR). The purpose of this study was to evaluate the clinical outcomes and possible hypertrophy of the FHL muscle after FHLT transfer in patients with chronic ATR. METHODS Seven patients with chronic ATR underwent an FHLT transfer to heel through single inc...
Our intent was to investigate the mechanisms driving the adaptive potential of subsarcolemmal (SS) and intermyofibrillar (IMF) mitochondria in young (6 mo) and senescent (36 mo) animals in response to a potent stimulus for organelle biogenesis. We employed chronic electrical stimulation (10 Hz, 3 h/day, 7 days) to induce contractile activity of skeletal muscle in 6 and 36 mo F344XBN rats. Subse...
INTRODUCTION: Several experimental studies suggest that growth hormone-based therapies have the potential to accelerate and augment axonal regeneration while simultaneously act directly on muscle and Schwann cells (SCs) to minimize denervation atrophy prior to re-innervation. The purpose of this study was to assess the impact of growth hormone (GH) therapy on preventing the deleterious effects ...
Sporadic inclusion body myositis (IBM) is the most common idiopathic inflammatory myopathy (IIM) after age 50 years. It presents with chronic insidious proximal leg and distal arm asymmetric muscle weakness. Despite similarities with polymyositis (PM), it is likely that IBM is primarily a degenerative disorder rather than inflammatory muscle disease. IBM is associated with a modest degree of cr...
Aims and background: Chronic neck pain is a common problem and is often associated with changes in sensory-motor functions such as decreased neck proprioception, altered neck muscle coordination, and increased postural fluctuations. The aim of this study was the effectiveness of exercise therapy in improving chronic non-specific neck pain in athletes in Khorramabad. Methods and Materials: The ...
BACKGROUND Recent experimental evidence has indicated that the motor system coordinates muscle activations through a linear combination of muscle synergies that are specified at the spinal or brainstem networks level. After stroke upper limb impairment is characterized by abnormal patterns of muscle activations or synergies. OBJECTIVE This study aimed at characterizing the muscle synergies in...
Surgical treatment of chronic pulmonary aspergillosis using preventive latissimus dorsi muscle flaps
BACKGROUND Surgery for chronic pulmonary aspergillosis is often technically risky. The choice of immediate thoracoplasty or muscle flap plombage to prevent postoperative space problems remains controversial. This study focused on the use of muscle flaps to prevent postoperative complications. METHODS During an 8-year period (2004 to 2012), all patients surgically treated for chronic pulmonary...
BACKGROUND The alterations in skeletal muscle structure and function after prolonged periods of unloading are initiated by the chronic lack of mechanical stimulus of sufficient intensity, which is the result of a series of biochemical and metabolic interactions spanning from cellular to tissue/organ level. Reduced activation of skeletal muscle alters the gene expression of myosin heavy chain is...
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