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https://www.readbyqxmd.com/read/29444538/-effects-of-judo-specific-resistance-training-on-kinetic-and-electromyographic-parameters-of-pulling-exercises-in-judo-athletes
#1
Norman Helm, Olaf Prieske, Thomas Muehlbauer, Tom Krüger, Urs Granacher
BACKGROUND: In judo, rapid force production during pulling movements is an important component of athletic performance, which is why this capacity needs to be specifically exercised in judo. This study aimed at examining the effects of a judo-specific resistance training program using a judo ergometer system (PTJ) versus a traditional resistance training regime using a partner (PTP) on kinetics and muscle activity of judo-specific pulling exercises. METHOD: Twenty-four male judo athletes (age: 22 ± 4 years, training experience: 15 ± 3 years) were randomly assigned to two groups...
February 14, 2018: Sportverletzung Sportschaden: Organ der Gesellschaft Für Orthopädisch-Traumatologische Sportmedizin
https://www.readbyqxmd.com/read/29443643/comprehensive-examination-of-the-athlete-s-shoulder
#2
Eric J Cotter, Charles P Hannon, David Christian, Rachel M Frank, Bernard R Bach
CONTEXT: Shoulder pain and dysfunction are common, with patients presenting complaints to both primary and orthopaedic physicians. History and physical examination remain essential to creating a differential diagnosis, even as noninvasive imaging has improved. EVIDENCE ACQUISITION: Literature was obtained through keyword searches based on the pathology in question (eg, rotator cuff) and the keywords physical examination using PubMed from January 1, 1980, through September 20, 2017...
February 1, 2018: Sports Health
https://www.readbyqxmd.com/read/29441450/photobiomodulation-improves-motor-response-in-patients-with-spinal-cord-injury-submitted-to-electromyographic-evaluation-randomized-clinical-trial
#3
Fernanda Cordeiro da Silva, Andréa Oliver Gomes, Paulo Roberto da Costa Palácio, Fabiano Politti, Daniela de Fátima Teixeira da Silva, Raquel Agnelli Mesquita-Ferrari, Kristianne Porta Santos Fernandes, Sandra Kalil Bussadori
Photobiomodulation is a treatment that has been widely used in neurotrauma and neurodegenerative diseases. In the present study, low-level laser therapy was administered to patients with spinal cord injury. Twenty-five individuals were divided into two groups: placebo photobiomodulation plus physiotherapy and active photobiomodulation plus physiotherapy. Electromyographic evaluations were performed before and after 12 sessions of phototherapy as well as 30 days after the end of treatment. In the active phototherapy group, median frequency values of the brachial biceps and femoral quadriceps muscles were higher at rest and during isotonic contraction 30 days after photobiomodulation (p = 0...
February 13, 2018: Lasers in Medical Science
https://www.readbyqxmd.com/read/29432325/let-the-pleasure-guide-your-resistance-training-intensity
#4
Hassan Mohamed Elsangedy, Daniel Gomes da Silva Machado, Kleverton Krinski, Paulo Henrique Duarte do Nascimento, Gledson Tavares de Amorim Oliveira, Tony Meireles Santos, Elaine A Hargreaves, Gaynor Parfitt
PURPOSE: The purpose of this study was to evaluate the feasibility and reliability of the Feeling Scale (FS) to self-regulate resistance training (RT) intensity. METHODS: Sixteen sedentary men (39.7±7.5 years) performed 3 familiarization sessions, 2 one repetition maximum testing (1RM), and 16 RT sessions (4 sessions for each FS descriptor; randomized). The FS descriptors were "very good" (FS+5), "good" (FS+3), "fairly good" (FS+1), and "fairly bad" (FS-1). Resistance exercises were leg press, chest press, knee extension, and seated biceps curl...
February 9, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29431597/effect-of-movement-velocity-during-resistance-training-on-muscle-specific-hypertrophy-a-systematic-review
#5
Daniel A Hackett, Timothy B Davies, Rhonda Orr, Kenny Kuang, Mark Halaki
Currently, it is unclear whether manipulation of movement velocity during resistance exercise has an effect on hypertrophy of specific muscles. The purpose of this systematic review of literature was to investigate the effect of movement velocity during resistance training on muscle hypertrophy. Five electronic databases were searched using terms related to movement velocity and resistance training. Inclusion criteria were randomised and non-randomised comparative studies; published in English; included healthy adults; used dynamic resistance exercise interventions directly comparing fast training to slower movement velocity training; matched in prescribed intensity and volume; duration ≥4 weeks; and measured muscle hypertrophy...
February 12, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29430396/arthroscopic-biceps-tenodesis-using-interference-screw-fixation-in-the-bicipital-groove
#6
Thomas Amouyel, Yves-Pierre Le Moulec, Nicolas Tarissi, Mo Saffarini, Olivier Courage
Arthroscopic repair of the long head of the biceps (LHB) is performed to treat various biceps pathologies yet the choice between tenotomy or tenodesis remains controversial. Although tenotomy is simpler and quicker, tenodesis results in fewer complications, and there are several techniques available using various fixation devices and sites. This Technical Note describes an all-arthroscopic, suprapectoral tenodesis technique using a bioresorbable interference screw, without motorized devices to create the humeral tunnel in the bicipital groove...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29428883/correlated-responses-to-selection-for-intramuscular-fat-in-several-muscles-in-rabbits
#7
Marina Martínez-Álvaro, Pilar Hernández, Saif Agha, Agustín Blasco
The aim of this study was to evaluate the effect of six generations of selection for intramuscular fat (IMF) in muscle Longissimus thoracis et lumborum (LTL) at 9 wk. in IMF and fatty acid (FA) composition of muscles with diverse metabolic profile in rabbits. Direct response to selection was 0.33 g of IMF/ 100 g of LTL, around 0.4 SD per generation. A positive correlated response was observed in IMF of Biceps femoris, Supraspinatus and Semimembranosus proprius muscles at 9 wk., representing around 0...
February 1, 2018: Meat Science
https://www.readbyqxmd.com/read/29428167/local-texture-anisotropy-as-an-estimate-of-muscle-quality-in-ultrasound-imaging
#8
Guillaume J R Dubois, Damien Bachasson, Lilian Lacourpaille, Olivier Benveniste, Jean-Yves Hogrel
This study introduces local pattern texture anisotropy as a novel parameter to differentiate healthy and disordered muscle and to gauge the severity of muscle impairments based on B-mode ultrasound images. Preliminary human results are also presented. A local pattern texture anisotropy index (TAI) was computed in one region of interest in the short head of the biceps brachii. The effects of gain settings and box sizes required for TAI computation were investigated. Between-day reliability was studied in patients with sporadic inclusion body myositis (n = 26)...
February 7, 2018: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/29427559/gradient-based-optimization-with-b-splines-on-sparse-grids-for-solving-forward-dynamics-simulations-of-three-dimensional-continuum-mechanical-musculoskeletal-system-models
#9
J Valentin, M Sprenger, D Pflüger, O Röhrle
Investigating the interplay between muscular activity and motion is the basis to improve our understanding of healthy or diseased musculoskeletal systems. To be able to analyze the musculoskeletal systems, computational models are employed. Albeit some severe modeling assumptions, almost all existing musculoskeletal system simulations appeal to multi-body simulation frameworks. Although continuum-mechanical musculoskeletal system models can compensate for some of these limitations, they are essentially not considered due to their computational complexity and cost...
February 10, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29426957/mri-of-pectoralis-major-tears-association-between-ancillary-findings-and-tear-severity
#10
Ivan R B Godoy, Edgar L Martinez-Salazar, F Joseph Simeone, Miriam A Bredella, William E Palmer, Martin Torriani
OBJECTIVE: To evaluate the significance of biceps tendon (BT) displacement and peri-bicipital hematoma on MRI in subjects with pectoralis major (PM) tears. We hypothesized that these features might be associated with tear severity at surgery. MATERIALS AND METHODS: We retrospectively identified MRI cases with PM injury and reviewed clinical, imaging, and surgical records. MR images were reviewed independently by two musculoskeletal radiologists to determine anterior displacement of BT (BT-disp, in mm) and the presence of triangular-shaped peri-bicipital hematoma...
February 9, 2018: Skeletal Radiology
https://www.readbyqxmd.com/read/29424452/evidence-and-mechanism-by-which-upper-partial-fibulectomy-improves-knee-biomechanics-and-decreases-knee-pain-of-osteoarthritis
#11
Yong Nie, ZeYu Huang, Bin Xu, Bin Shen, Virginia Byers Kraus, FuXing Pei
To investigate the change in short-term clinical outcomes and biomechanical properties of the knee in response to upper partial fibulectomy and to probe into the biomechanical mechanism underlying the clinical benefits of upper partial fibulectomy for medial compartment knee osteoarthritis (KOA). 29 patients with medial compartment KOA underwent upper partial fibulectomy. Visual analog scale (VAS) pain, the hospital for special surgery knee score (HSS), hip-knee-ankle (HKA) angle (measured in the frontal plane), and flexion/extension range of motion of the knee were assessed before and up to 6 months after surgery...
February 9, 2018: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/29424164/-research-progress-on-the-etiology-and-treatment-of-patellofemoral-pain-syndrome
#12
REVIEW
Li-Hua Cui
Patellofemoral pain syndrome (PFPS) is one of the most common diseases that cause pain in the knee joint. At present, there is no specific diagnostic measure. The diagnosis of patellofemoral pain syndrome may be considered when imaging is performed without cartilage, ligament and soft tissue injuries. The etiology includes abnormalities of the patellar motion caused by various anatomical abnormalities, such as abnormal patellar position, increased Q angle, and excessive valgus foot. Dysfunction of the lower extremity muscles such as the imbalance of the four biceps and the dysfunction of the gluteal muscles also play an important role in the development of patellofemoral pain syndrome...
July 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29420773/trends-in-surgical-management-of-anterior-shoulder-instability-increased-utilization-of-bone-augmentation-techniques%C3%A2
#13
Joseph W Galvin, Josef K Eichinger, Eric J Cotter, Alyssa R Greenhouse, Stephen A Parada, Brian R Waterman
Purpose: The purpose of this study is to evaluate the trends in surgical management for anterior shoulder instability in the U.S. Military. Methods: A retrospective analysis of military service members undergoing arthroscopic or open shoulder stabilization from 2012 to 2015 within the U.S. Military Health System was conducted. Demographic and surgical variables were extracted from the medical record. Chi-square and linear regression analysis were performed to identify temporal trends by surgical procedures and concomitant surgery...
February 6, 2018: Military Medicine
https://www.readbyqxmd.com/read/29420745/biceps-tenodesis-and-intra-articular-decompression-for-treatment-of-superior-labral-tear-from-anterior-to-posterior-and-associated-paralabral-cyst-in-active-duty-military
#14
Nicholas P J Perry, Jared A Wolfe, Kim Nguyen-Ta, Daniel Christensen, Lucas S McDonald, Jonathan F Dickens, Lance E LeClere
Background: To examine the outcomes of combined biceps tenodesis and indirect, intra-articular arthroscopic paralabral cyst decompression for the treatment of active duty military patients with superior labral from anterior to posterior tears and associated paralabral cysts. Methods: Retrospective chart review of all active duty patients at our institution from 2011 to 2014 with superior labral from anterior to posterior tears and associated paralabral cysts at the spinoglenoid notch treated with biceps tenodesis and indirect arthroscopic cyst decompression...
February 6, 2018: Military Medicine
https://www.readbyqxmd.com/read/29416981/consolidated-proximal-biceps-tenodesis-and-subscapularis-repair
#15
Kyle E Fleck, Larry D Field
Pathologic changes to the biceps tendon including subluxation are frequently encountered in patients with subscapularis tears. Operatively managing these combined lesions can be difficult depending on the status of the subscapularis tendon and the degree of biceps medialization. The presented technique is an effective and relatively simple method that simultaneously and efficiently provides for secure tenodesis of the biceps and fixation of subscapularis tendon detachment.
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29416978/arthroscopic-transfer-of-the-long-head-of-the-biceps-brachii-for-anterior-shoulder-instability
#16
Jin Tang, Jinzhong Zhao
In the treatment of anterior shoulder instability, there are various conditions in which a sling effect is needed to enhance anterior stability. The traditional Latarjet procedure provides a sling effect but destroys the coracoacromial arch, which may result in superior instability. To preserve the coracoacromial arch and create a sling to enhance the anterior-inferior side of the shoulder, we introduce an arthroscopic technique to transfer the long head of the biceps (LHB) brachii. Indications of LHB transfer are patients younger than 45 years of age who participate in competitive sports, require forceful external rotation and abduction movement of the shoulder, and/or have capsule-ligament insufficiency, as well as patients 45 years o or older who have combined SLAP lesions (type II or IV)...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29416964/arthroscopic-rotator-cuff-repair-with-mini-open-subpectoral-biceps-tenodesis
#17
Nicholas I Kennedy, George Sanchez, Sandeep Mannava, Márcio B Ferrari, Salvatore J Frangiamore, Matthew T Provencher
With a range of tear characteristics such as chronicity, degree of fatty atrophy, and number of tendons involved as well as varying patient-specific characteristics including age, injury mechanism, and expectations after treatment to consider, proper and successful treatment of a rotator cuff tear is multifactorial and, consequently, challenging. Although conservative management of a rotator cuff tear may be successful, a more severe tear with involvement of more tendons may warrant surgical intervention. Furthermore, additional pathology including biceps tendinopathy may result in greater patient morbidity and an even more complex treatment decision-making process and surgical technique...
October 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/29413450/a-strong-linear-relationship-between-turns-amplitude-peak-ratio-and-ratio-at-maximal-effort
#18
Christos Moschovos, Apostolia Ghika, Nikolaos Karandreas, Andreas Kyrozis
In EMG interference pattern analysis, the peak value of turns to mean amplitude ratio [peak(T/A)] is an established clinically significant marker, but its calculation requires specific software available only in few EMG apparatuses. On the contrary, the turns to mean amplitude ratio obtained at maximal muscle contraction (T/Amax) is easily calculated but less well standardized. We aimed to quantitatively assess the association between T/Amax and peak(T/A). Data were derived from 642 muscle contractions (Nc) from 270 consecutive patients (Np) who underwent EMG at our laboratory (software Dantec Keypoint, QEMG) from May 2015 to September 2016 and had interference patterns obtained from at least one of the following muscles: triceps-lateral head, brachioradialis, extensor digitorum communis and biceps...
January 29, 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29411738/surgical-management-of-distal-biceps-tendon-anatomical-reinsertion-complications-iatrogenic-posterior-interosseous-nerve-palsy
#19
Paweł Reichert, Aleksandra Królikowska, Jarosław Witkowski, Łukasz Szuba, Andrzej Czamara
BACKGROUND Although iatrogenic posterior interosseous nerve (PIN) palsy is an uncommon complication of ruptured distal biceps brachii tendon surgical anatomical reinsertion, it is the most severe complication leading to functional limitation. The present study investigated possible types of PIN palsy as a postoperative complication of anatomical distal biceps tendon reinsertion, and aimed to clinically assess patients at 2 years after its surgical treatment. MATERIAL AND METHODS The studied sample comprised 7 male patients diagnosed with an iatrogenic PIN palsies after anatomical reinsertion of the distal biceps tendon, who were referred to the reference center for management of a peripheral nervous system injury...
February 7, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29411423/the-anatomy-of-the-perineal-branch-of-the-sciatic-nerve
#20
Christopher M Gibbs, Alexander D Ginsburg, Thomas J Wilson, Nirusha Lachman, Mario Hevesi, Robert J Spinner, Aaron J Krych
INTRODUCTION: A "perineal" branch of the sciatic nerve has been visualized during surgery, but there is currently no description of this nerve branch in the literature. Our study investigates the presence and frequency of occurrence of perineal innervation by the sciatic nerve and characterizes its anatomy in the posterior thigh. MATERIALS AND METHODS: Fifteen cadavers were obtained for dissection. Descriptive results were recorded.Statistical analysis was performed and analyzed statistically...
February 7, 2018: Clinical Anatomy
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