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https://www.readbyqxmd.com/read/27900442/arthroscopic-revision-release-of-gluteal-muscle-contracture-after-failed-primary-open-surgery
#1
Xintao Zhang, Xiaocheng Jiang, Feilin He, Zuru Liang, Tian You, Dadi Jin, Wentao Zhang
PURPOSE: The treatment of gluteal muscle contracture (GMC) after failed primary open release surgery has rarely been reported in the literature. GMC is a troublesome health problem in some developing countries, and it can result in the limitation of patients' hip function, leading to the development of inferiority complexes. The aim of this study is to evaluate the effect of arthroscopic revision surgery after failed primary open release on patients with GMC. METHODS: A total of 278 hips of 140 patients who underwent arthroscopic revision procedures after failed primary open surgeries were gathered from the department files...
November 29, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27898947/study-of-bovine-gene-the-temporal-spatial-expression-patterns-polymorphism-and-association-analysis-with-meat-production-traits
#2
E Juszczuk-Kubiak, K Bujko, M Grześ, M Cymer, K Wicińska, A Szostak, M Pierzchała
The gene () encodes a transcription factor belonging to the MEF2 family that plays an important role in myogenesis by transcriptional regulation of genes involved in skeletal muscle growth and development. Despite the established importance of the factors in the muscular growth and development, the temporal-spatial expression and biological function of have not been reported in cattle. The aim of this study was to analyze the level of expression in the developing longissimus dorsi muscle (LM) of 4 cattle breeds (Polish Holstein-Friesian [HF], Limousine [LIM], Hereford [HER], Polish Red [PR]), differing in terms of meat production and utility type, at 6, 9, and 12 mo of age...
November 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27868426/effects-of-regular-tai-chi-practice-and-jogging-on-neuromuscular-reaction-during-lateral-postural-control-in-older-people
#3
Shao-Jun Wang, Dong-Qing Xu, Jing-Xian Li
This study examined the effects of regular Tai Chi practice and jogging on the neuromuscular activity of the trunk, hip, and ankle joint muscles of older people during lateral postural perturbation. A total of 42 older people participated in the study and formed the Tai Chi, jogging, and sedentary control groups. Electromyography signals were collected from the peroneus longus, anterior tibialis, gluteus medius, and erector spinae during unpredictable mediolateral perturbation. The Tai Chi group exhibited significantly faster latencies of the tibialis anterior and erector spinae than the control group...
November 19, 2016: Research in Sports Medicine
https://www.readbyqxmd.com/read/27868077/platelet-rich-plasma-injections-with-needle-tenotomy-for-gluteus-medius-tendinopathy-a-registry-study-with-prospective-follow-up
#4
James J Lee, Julian R Harrison, Kwadwo Boachie-Adjei, Elizabeth Vargas, Peter J Moley
BACKGROUND: Gluteal tendinopathy is a prevalent condition that can be associated with significant pain and disability. To date, no studies have prospectively assessed the efficacy of intratendinous platelet-rich plasma (PRP) injections as a minimally invasive treatment for gluteus medius tendinopathy. PURPOSE: To prospectively assess the efficacy of intratendinous PRP injections as treatment for chronic recalcitrant gluteus medius tendinopathy. STUDY DESIGN: Case series; Level of evidence, 4...
November 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/27846435/muscle-activation-patterns-of-the-lumbo-pelvic-hip-complex-during-walking-gait-before-and-after-exercise
#5
Mihyang Chang, Lindsay V Slater, Revay O Corbett, Joseph M Hart, Jay Hertel
The lumbo-pelvic-hip core complex consists of musculoskeletal structures that stabilize the spine and pelvis, however fatigue may affect muscle recruitment, active muscle stiffness and trunk kinematics, compromising trunk stability. The purpose of this study was to compare trunk muscle activation patterns, and trunk and lower extremity kinematics during walking gait before and after exercise. Surface electrodes were placed over the rectus abdominis, external oblique, erector spinae, gluteus medius, vastus lateralis, and vastus medialis of twenty-five healthy inidviduals...
November 9, 2016: Gait & Posture
https://www.readbyqxmd.com/read/27821928/the-effect-of-gluteus-medius-strengthening-on-the-knee-joint-function-score-and-pain-in-meniscal-surgery-patients
#6
Eun-Kyung Kim
[Purpose] The purpose of this study was to analyze the effect of gluteus medius activity strengthening due to squat with isometric hip adduction and hip abduction in side-lying exercise on knee joint function index and pain in meniscal surgery patients. [Subjects and Methods] This study selected sample of 26 patients who had meniscal surgery more than 4 weeks ago. The patients were divided into squat with isometric hip adduction exercise group I (n=8), hip abduction in side-lying exercise group II (n=9), and combined exercise group III...
October 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27809923/functional-electrical-stimulation-of-gluteus-medius-reduces-the-medial-joint-reaction-force-of-the-knee-during-level-walking
#7
Lance Rane, Anthony Michael James Bull
BACKGROUND: By altering muscular activation patterns, internal forces acting on the human body during dynamic activity may be manipulated. The magnitude of one of these forces, the medial knee joint reaction force (JRF), is associated with disease progression in patients with early osteoarthritis (OA), suggesting utility in its targeted reduction. Increased activation of gluteus medius has been suggested as a means to achieve this. METHODS: Motion capture equipment and force plate transducers were used to obtain kinematic and kinetic data for 15 healthy subjects during level walking, with and without the application of functional electrical stimulation (FES) to gluteus medius...
November 3, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27809906/modulating-effects-of-exercise-training-regimen-on-skeletal-muscle-properties-in-female-polo-ponies
#8
Metha Chanda, Ratchakrit Srikuea, Worakij Cherdchutam, Arthit Chairoungdua, Pawinee Piyachaturawat
BACKGROUND: The match play patterns in equestrian polo are unique and require specific training programs to ensure sport performance. The effect of commonly used exercise training regimens on the adaptation of skeletal muscle is unclear. The present study investigated the modulating effects of the classic training regimen, comprised of aerobic exercise training with increasing exercise intensities and varying duration combined with match play, on the properties of muscle in polo ponies...
November 4, 2016: BMC Veterinary Research
https://www.readbyqxmd.com/read/27799690/mean-individual-muscle-activities-and-ratios-of-total-muscle-activities-in-a-selective-muscle-strengthening-experiment-the-effects-of-lower-limb-muscle-activity-based-on-mediolateral-slope-angles-during-a-one-leg-stance
#9
Sang-Yeol Lee
[Purpose] The purpose of this study was to provide basic data for research on selective muscle strengthening by identifying mean muscle activities and calculating muscle ratios for use in developing strengthening methods. [Subjects and Methods] Twenty-one healthy volunteers were included in this study. Muscle activity was measured during a one-leg stance under 6 conditions of slope angle: 0°, 5°, 10°, 15°, 20°, and 25°. The data used in the analysis were root mean square and % total muscle activity values...
September 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27788369/effect-of-reduction-of-oxygen-concentration-in-modified-atmosphere-packaging-on-bovine-m-longissimus-lumborum-and-m-gluteus-medius-quality-traits
#10
Joanna Łopacka, Andrzej Półtorak, Agnieszka Wierzbicka
This paper reports the impact of modified atmosphere gas compositions with different concentrations of CO2/O2/N2 on physicochemical traits of beef steaks from M. longissimus lumborum and M. gluteus medius. Samples were stored at +2°C for 12days. The gas compositions were as follows: (i) 50% O2/20% CO2/30% N2 (MAP1), (ii) 65% O2/20% CO2/15% N2 (MAP2) and (iii) 80% O2/20% CO2 (MAP3). Packaging atmosphere did not affect CIEL*a*b* colour coordinates, which were affected by storage time and by muscle type. Lipid oxidation in M...
October 11, 2016: Meat Science
https://www.readbyqxmd.com/read/27782799/novel-equine-tissue-mirnas-and-breed-related-mirna-expressed-in-serum
#11
Alicja Pacholewska, Núria Mach, Xavier Mata, Anne Vaiman, Laurent Schibler, Eric Barrey, Vincent Gerber
BACKGROUND: MiRNAs regulate multiple genes at the post-transcriptional level and therefore play an important role in many biological processes. It has been suggested that miRNA exported outside the cells contribute to inter-cellular communication. Consequently, circulating miRNAs are of particular interest and are promising biomarkers for many diseases. The number of miRNAs annotated in the horse genome is much lower compared to model organisms like human and mouse. We therefore aimed to identify novel equine miRNAs for tissue types and breed in serum...
October 26, 2016: BMC Genomics
https://www.readbyqxmd.com/read/27739568/impact-of-individual-anatomy-on-the-benefit-of-cup-medialisation-in-total-hip-arthroplasty
#12
Alexandre Terrier, Valérie Parvex, Hannes A Rüdiger
INTRODUCTION: In total hip arthroplasty, cup medialisation with compensatory increase of femoral offset has been proposed to increase the moment arms of abductor muscles. However, this technique is associated with a loss of acetabular bone stock. Previous data indicates that the potential benefit is not constant among patients and is likely related to patient anatomy. METHOD: Therefore, to be able to select patients who would benefit most from this technique, we measured several anatomical parameters of the pelvis and femur in 15 patients; and evaluated correlations between them and the changes of moment arms associated with cup medialisation...
October 8, 2016: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
https://www.readbyqxmd.com/read/27733087/comparison-of-muscle-activation-levels-between-healthy-individuals-and-persons-who-have-undergone-anterior-cruciate-ligament-reconstruction-during-different-phases-of-weight-bearing-exercises
#13
Gulcan Harput, Jennifer Sebert Howard, Carl Mattacola
Study Design Cross-sectional, controlled laboratory study. Background Quantification of muscular activation during different phases of functional activities is important to understand activation deficits in individuals who have undergone anterior cruciate ligament reconstruction (ACLR). Objectives To compare activation levels of vastus medialis (VM), medial hamstrings (MH) and gluteus medius (GMed) muscles during the different phases of weight bearing tasks between individuals who had undergone ACLR and healthy controls...
October 12, 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27721912/effect-of-high-intensity-training-in-normobaric-hypoxia-on-thoroughbred-skeletal-muscle
#14
Hiroshi Nagahisa, Kazutaka Mukai, Hajime Ohmura, Toshiyuki Takahashi, Hirofumi Miyata
Hypoxic training is believed to increase endurance capacity in association with hypoxia inducible factor-1α (HIF-1α), a modulator of vascular endothelial growth factor-A (VEGF-A), and to influence activation of satellite cells (SCs). However, the effect of hypoxic training on SC activation and its relation to angiogenesis has not been thoroughly investigated. Eight Thoroughbred horses were subjected to normoxic (FIO2 = 21%) or hypoxic (FIO2 = 15%) training for 3 days/week (100%  [Formula: see text]) for 4 weeks...
2016: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/27709043/endoscopic-gluteus-medius-repair-augmented-with-bioinductive-implant
#15
Daniel J Kaplan, Andrew P Dold, David J Fralinger, Robert J Meislin
Patients with gluteus minimus and medius tears that fail nonoperative management may be indicated for surgical repair; however, structural failure after gluteal tendon repair remains unacceptably high. This is likely related to the limited healing potential of tendinous tissue, which is poorly vascular and heals by formation of fibrocartilaginous scar tissue rather than histologically normal tendon. An emerging option to augment tendon healing is the use of a bioinductive implant that is designed to amplify the host healing response and induce the formation of healthy tendon tissue...
August 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/27693990/mcconnell-s-patellar-taping-does-not-alter-knee-and-hip-muscle-activation-differences-during-proprioceptive-exercises-a-randomized-placebo-controlled-trial-in-women-with-patellofemoral-pain-syndrome
#16
Cynthia Gobbi Alves Araújo, Christiane de Souza Guerino Macedo, Daiene Ferreira, Leonardo Shigaki, Rubens A da Silva
: The purpose of this study was to assess the effect of patellar taping on muscle activation of the knee and hip muscles in women with Patellofemoral Pain Syndrome during five proprioceptive exercises. Forty sedentary women with syndrome were randomly allocated in two groups: Patellar Taping (based in McConnell) and Placebo (vertical taping on patella without any stretching of lateral structures of the knee). Volunteers performed five proprioceptive exercises randomly: Swing apparatus, Mini-trampoline, Bosu balance ball, Anteroposterior sway on a rectangular board and Mediolateral sway on a rectangular board...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27693602/fetal-development-of-the-pulley-for-muscle-insertion-tendons-a-review-and-new-findings-related-to-the-tensor-tympani-tendon
#17
Jose Francisco Rodríguez-Vázquez, Yohei Honkura, Yukio Katori, Gen Murakami, Hiroshi Abe
The existence of hard tissue pulleys that act to change the direction of a muscle insertion tendon is well known in the human body. These include (1) the trochlea for the extraocular obliquus superior muscle, (2) the pterygoid hamulus for the tensor veli palatini muscle, (3) the deep sulcus on the plantar aspect of the cuboid bone for the peroneus longus tendon, (4) the lesser sciatic notch for the obturator internus muscle, and (5) the bony trochleariformis process for the tensor tympani muscle tendon. In addition, (6) the stapedius muscle tendon shows a lesser or greater angulation at the pyramidal eminence of the temporal bone...
September 29, 2016: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
https://www.readbyqxmd.com/read/27666775/muscle-mri-in-duchenne-muscular-dystrophy-evidence-of-a-distinctive-pattern
#18
Kiran Polavarapu, Mahadevappa Manjunath, Veeramani Preethish-Kumar, Deepha Sekar, Seena Vengalil, PriyaTreesa Thomas, Talakad N Sathyaprabha, Rose Dawn Bharath, Atchayaram Nalini
The purpose of this study was to describe the pattern of muscle involvement using MRI findings and correlate with functional as well as muscle strength measurements. Fifty genetically confirmed DMD children with a mean age of 7.6 ± 2.8 (4-15 years) underwent muscle MRI and qualitative assessment was done for muscle changes using Mercuri staging for fibro-fatty replacement on T1 sequence and Borsato score for myoedema on STIR sequence. Detailed phenotypic characterisation was done with Manual muscle testing (modified MRC grading) and Muscular Dystrophy Functional Rating Scale (MDFRS)...
November 2016: Neuromuscular Disorders: NMD
https://www.readbyqxmd.com/read/27663654/greater-trochanteric-pain-syndrome-percutaneous-tendon-fenestration-versus-platelet-rich-plasma-injection-for-treatment-of-gluteal-tendinosis
#19
Jon A Jacobson, Corrie M Yablon, P Troy Henning, Irene S Kazmers, Andrew Urquhart, Brian Hallstrom, Asheesh Bedi, Aishwarya Parameswaran
OBJECTIVES: The purpose of this study was to compare ultrasound-guided percutaneous tendon fenestration to platelet-rich plasma (PRP) injection for treatment of greater trochanteric pain syndrome. METHODS: After Institutional Review Board approval was obtained, patients with symptoms of greater trochanteric pain syndrome and ultrasound findings of gluteal tendinosis or a partial tear (<50% depth) were blinded and treated with ultrasound-guided fenestration or autologous PRP injection of the abnormal tendon...
November 2016: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/27649511/the-effects-of-acute-experimental-hip-muscle-pain-on-dynamic-single-limb-balance-performance-in-healthy-middle-aged-adults
#20
Anna L Hatton, François Hug, Sarah H Chen, Christine Reid, Nicole A Sorensen, Kylie Tucker
Middle-aged adults with painful hip conditions show balance impairments that are consistent with an increased risk of falls. Pathological changes at the hip, accompanied by pain, may accelerate pre-existing age-related balance deficits present in midlife. To consider the influence of pain alone, we investigated the effects of acute experimental hip muscle pain on dynamic single-limb balance in middle-aged adults. Thirty-four healthy adults aged 40-60 years formed two groups (Group-1: n=16; Group-2: n=18). Participants performed four tasks: Reactive Sideways Stepping (ReactSide); Star Excursion Balance Test (SEBT); Step Test; Single-Limb Squat; before and after an injection of hypertonic saline into the right gluteus medius muscle (Group-1) or ∼5min rest (Group-2)...
October 2016: Gait & Posture
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