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https://www.readbyqxmd.com/read/28931339/limb-girdle-muscular-dystrophy-type-2i-two-chinese-families-and-a-review-in-asian-patients
#1
Dan-Ni Wang, Zhi-Qiang Wang, Yu-Qing Chen, Guo-Rong Xu, Min-Ting Lin, Ning Wang
BACKGROUND: Limb-girdle muscular dystrophy type 2I (LGMD2I) is an autosomal recessive hereditary disorder caused by mutations in the fukutin-related protein (FKRP) gene. Although the features of the disorder in European patients have been summarized, Asian patients with LGMD2I have rarely been reported. Thus, the clinical differences in LGMD2I between Asian and European patients and the associated genetic changes remain unclear. METHODS: We reported detailed clinical data as well as results from muscle biopsy, muscle MRI and genetic analysis of the FKRP gene in two unrelated Chinese families with LGMD2I...
September 21, 2017: International Journal of Neuroscience
https://www.readbyqxmd.com/read/28928032/reliability-of-surface-electromyography-activity-of-gluteal-and-hamstring-muscles-during-sub-maximal-and-maximal-voluntary-isometric-contractions
#2
Melanie D Bussey, Daniela Aldabe, Divya Adhia, Ramakrishnan Mani
BACKGROUND: Normalizing to a reference signal is essential when analysing and comparing electromyography signals across or within individuals. However, studies have shown that MVC testing may not be as reliable in persons with acute and chronic pain. OBJECTIVES: The purpose of this study was to compare the test-retest reliability of the muscle activity in the biceps femoris and gluteus maximus between a novel sub-MVC and standard MVC protocols. METHODS: This study utilized a single individual repeated measures design with 12 participants performing multiple trials of both the sub-MVC and MVC tasks on two separate days...
September 11, 2017: Musculoskeletal Science & Practice
https://www.readbyqxmd.com/read/28926875/-effects-of-perforator-flaps-combined-with-muscle-flaps-for-repairing-grade-%C3%A2-pressure-ulcers-in-ischial-tuberosity-of-elderly-patients
#3
W G Su, D P Li, P P Xing, L G Xu, F C Shi, B Wen, X H Niu
Objective: To explore effects of perforator flaps combined with muscle flaps for repairing grade Ⅳ pressure ulcers in ischial tuberosity of elderly patients. Methods: Nine elderly patients with grade Ⅳ pressure ulcers in ischial tuberosity were hospitalized in our burn ward from April 2014 to April 2017. Size of wounds ranged from 5 cm×3 cm to 12 cm×7 cm, and depth of sinus ranged from 6 to 22 cm. After admission, emergency debridement or debridement in selective time was performed. After debridement, the wounds were treated with continuous vacuum assisted closure therapy...
September 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28922049/magnitudes-of-muscle-activation-of-spine-stabilizers-in-healthy-adults-during-prone-on-elbow-planking-exercises-with-and-without-a-fitness-ball
#4
James W Youdas, Kendra C Coleman, Erin E Holstad, Stephanie D Long, Nicole L Veldkamp, John H Hollman
Prone planking exercises have been used by rehabilitation professionals to activate torso muscles in healthy persons and those with low back pain. The aim of this study was to compare the magnitude of electromyographic (EMG) muscle activation from 10 right-sided muscles as demonstrated by the percentage of maximum voluntary isometric contraction (%MVIC) during four planking procedures. Surface EMG activity was acquired from the following muscles: (1) iliocostalis lumborum (IL), (2) longissimus thoracis (LT), (3) lumbar multifidus (LM), (4) rectus abdominis (RA), (5) external oblique (EO), (6) internal oblique (IO), (7) serratus anterior (SA), (8) latissimus dorsi (LD), (9) hamstrings (HS), and (10) gluteus maximus (GM)...
September 18, 2017: Physiotherapy Theory and Practice
https://www.readbyqxmd.com/read/28920547/decreased-postoperative-gluteus-medius-muscle-cross-sectional-area-measured-by-computed-tomography-scan-in-patients-with-intertrochanteric-fractures-nailing
#5
Mitsuaki Noda, Yasuhiro Saegusa, Masayasu Takahashi, Yuma Takada, Masahiro Fujita, Issei Shinohara
BACKGROUND: In patients with femoral intertrochanteric fractures treated by cephalomedullary (CM) nailing, abduction force reportedly decreased by 25-30% during the postoperative follow-up period. The purpose of the current study is to evaluate the cross-sectional area (CSA) and adipose tissue ratio (ATR) of the gluteus medius muscle on the postoperative computed tomography (CT) view, expecting this graphic study will support clinical results. MATERIALS AND METHODS: A total of 27 patients with femoral intertrochanteric fractures treated by CM femoral nail implants completed the study...
September 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28913369/changes-in-the-width-of-the-tibiofibular-syndesmosis-related-to-lower-extremity-joint-dynamics-and-neuromuscular-coordination-on-drop-landing-during-the-menstrual-cycle
#6
Michie Okazaki, Masaaki Kaneko, Yukisato Ishida, Norio Murase, Toshihito Katsumura
BACKGROUND: Many injuries of the lower extremities, especially the knee and ankle, occur during sports activity, and the incidence rate is higher in women than in men. HYPOTHESIS: The hypothesis was that phases of the menstrual cycle affect the width of the tibiofibular syndesmosis during drop landing in healthy young women and that such changes at the tibiofibular joint also affect the dynamics and neuromuscular coordination of the lower extremities. STUDY DESIGN: Descriptive laboratory study...
September 2017: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28905802/coccygodynia-pathogenesis-diagnostics-and-therapy-review-of-the-writing
#7
Bogumiła Dampc, Krzysztof Słowiński
Coccygodynia is a problem with a small percentage (1%) of the population suffering from musculoskeletal disorders. This pain is often associated with trauma, falling on the tailbone, long cycling, or by women after childbirth. The reason for the described problem can be the actual morphological changes. Idiopathic coccygodynia causes therapeutic difficulties to specialists of many fields. Unsatisfactory treatment, including coccygectomy tends to seek new solutions. They belong to them techniques exploited in the manual therapy which in their spectrum hold: direct techniques - per rectum as well as indirect techniques taking into account distant structures of the motor organ, remaining in dense interactions with the coccygeal part...
August 31, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28905107/effect-of-changes-of-femoral-offset-on-abductor-and-joint-reaction-forces-in-total-hip-arthroplasty
#8
Hannes A Rüdiger, Maïka Guillemin, Adeliya Latypova, Alexandre Terrier
BACKGROUND: Anatomical reconstruction in total hip arthroplasty (THA) allows for physiological muscle function, good functional outcome and implant longevity. Quantitative data on the effect of a loss or gain of femoral offset (FO) are scarce. The aim of this study was to quantitatively describe the effect of FO changes on abductor moment arms, muscle and joint reactions forces. METHODS: THA was virtually performed on 3D models built from preoperative CT scans of 15 patients undergoing THA...
September 13, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28900560/building-a-better-gluteal-bridge-electromyographic-analysis-of-hip-muscle-activity-during-modified-single-leg-bridges
#9
B J Lehecka, Michael Edwards, Ryan Haverkamp, Lani Martin, Kambry Porter, Kailey Thach, Richard J Sack, Nils A Hakansson
BACKGROUND: Gluteal strength plays a role in injury prevention, normal gait patterns, eliminating pain, and enhancing athletic performance. Research shows high gluteal muscle activity during a single-leg bridge compared to other gluteal strengthening exercises; however, prior studies have primarily measured muscle activity with the active lower extremity starting in 90 ° of knee flexion with an extended contralateral knee. This standard position has caused reports of hamstring cramping, which may impede optimal gluteal strengthening...
August 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/28895466/lower-limb-muscle-activity-during-table-tennis-strokes
#10
Yann Le Mansec, Sylvain Dorel, François Hug, Marc Jubeau
This study aimed to compare the muscle activity of lower limbs across typical table tennis strokes. Fourteen high-level players participated in this study in which five typical strokes (backhand top, forehand top, forehand spin, forehand smash, flick) were analysed. Surface electromyography activity (EMG) of eight muscles was recorded (gluteus maximus, biceps femoris, vastus medialis, vastus lateralis, rectus femoris, gastrocnemius medialis, gastrocnemius lateralis, soleus) and normalised to the maximal activity measured during squat jump or isometric maximal voluntary contractions...
September 12, 2017: Sports Biomechanics
https://www.readbyqxmd.com/read/28890224/comparison-of-hip-muscle-volume-between-fit-and-fill-stem-and-tapered-wedge-stem-after-total-hip-arthroplasty-using-the-anterolateral-approach
#11
Dongmin Xu, Hiroshi Koyama, Hiroki Furuhashi, Shoichi Nishikino, Hironobu Hoshino, Yukihiro Matsuyama
BACKGROUND: In total hip arthroplasty (THA) surgery, hip muscle preservation is important in strengthening the stability of the hip and improving the activities of the patient. However, whether the type of femoral stem affects the recovery of the hip muscles remains unknown. The aim of this study was to compare the postoperative hip muscle recovery among femoral stem varieties after THA. METHODS: The computed tomography (CT) images of 44 patients (44 hips) who underwent THA using an anterolateral approach were reviewed...
September 7, 2017: Journal of Orthopaedic Science: Official Journal of the Japanese Orthopaedic Association
https://www.readbyqxmd.com/read/28888906/the-comparison-of-ground-reaction-forces-and-lower-limb-muscles-correlation-and-activation-time-delay-between-forward-and-backward-walking
#12
Mohammadreza Mahaki, Gustavo Souto De Sá E Souza, Raghad Mimar, Marcus Fraga Vieira
This study aimed to compare the ground reaction forces (GRF) and lower limb muscles correlation and activation time delay between Forward (FW) and Backward (BW) walking. Twenty-four male students participated in this research. Electromyogram activities of gluteus medius, biceps femoris, medial gastrocnemius, soleus and anterior tibialis muscles along with GRFs were measured. Each participant performed two FW and two BW trials bare foot. Statistical parametric mapping (SPM) analysis was performed over anterior-posterior and vertical GRFs time series...
September 6, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28857115/muscle-function-and-coordination-of-stair-ascent
#13
Nicole Harper, Jason Wilken, Richard Neptune
Stair ascent is an activity of daily living and necessary for maintaining independence in community environments. One challenge to improving an individual's ability to ascend stairs is a limited understanding of how lower-limb muscles work in synergy to perform stair ascent. Through dynamic coupling muscles may perform multiple functions and require contributions from other muscles to perform a task successfully. The purpose of this study was to identify the functional roles of individual muscles during stair ascent and the mechanisms by which muscles work together to perform specific subtasks...
August 31, 2017: Journal of Biomechanical Engineering
https://www.readbyqxmd.com/read/28846496/whole-body-imaging-of-tissue-specific-insulin-sensitivity-and-body-composition-by-using-an-integrated-pet-mr-system-a-feasibility-study
#14
Emil Johansson, Mark Lubberink, Kerstin Heurling, Jan W Eriksson, Stanko Skrtic, Håkan Ahlström, Joel Kullberg
Purpose To develop, evaluate, and demonstrate the feasibility of a whole-body protocol for simultaneous assessment of tissue-specific insulin-mediated fluorine 18 ((18)F) fluorodeoxyglucose (FDG) influx rates, tissue depots, and whole-body insulin sensitivity (referred to as the M value). Materials and Methods An integrated positron emission tomography (PET)/magnetic resonance (MR) imaging system combined with hyperinsulinemic euglycemic clamp (HEC) was used. Dynamic whole-body PET imaging was used to determine the insulin-mediated (18)F-FDG tissue influx rate (Ki) in the whole-body region by using the Patlak method...
August 25, 2017: Radiology
https://www.readbyqxmd.com/read/28843163/electromiography-comparison-of-distal-and-proximal-lower-limb-muscle-activity-patterns-during-external-perturbation-in-subjects-with-and-without-functional-ankle-instability
#15
Khadijeh Kazemi, Amir Massoud Arab, Iraj Abdollahi, Daniel López-López, César Calvo-Lobo
Ankle sprain is one of the most common injuries among athletes and the general population. Most ankle injuries commonly affect the lateral ligament complex. Changes in postural sway and hip abductor muscle strength may be generated after inversion ankle sprain. Therefore, the consequences of ankle injury may affect proximal structures of the lower limb. The aim is to describe and compare the activity patterns of distal and proximal lower limb muscles following external perturbation in individuals with and without functional ankle instability...
August 23, 2017: Human Movement Science
https://www.readbyqxmd.com/read/28836890/hip-abductor-fatigability-and-recovery-are-related-to-the-development-of-low-back-pain-during-prolonged-standing
#16
Daniel Viggiani, Jack P Callaghan
A prolonged standing exposure can identify asymptomatic adults who have a higher risk of developing clinical low back pain later in life. Hip abductor cocontraction differences can predict low back pain development during standing exposures. This study's purpose was to determine if hip abductor strength, fatigability, and recovery during prolonged standing were related to standing-induced low back pain. Forty young, asymptomatic adults (50% female) performed two 2-hour standing sessions, a fatiguing hip abductor exercise was performed prior to one of the two standing sessions...
August 24, 2017: Journal of Applied Biomechanics
https://www.readbyqxmd.com/read/28831739/patterns-of-uptake-of-prostate-specific-membrane-antigen-psma-targeted-18-f-dcfpyl-in-peripheral-ganglia
#17
Rudolf A Werner, Sara Sheikhbahaei, Krystyna M Jones, Mehrbod S Javadi, Lilja B Solnes, Ashley E Ross, Mohamad E Allaf, Kenneth J Pienta, Constantin Lapa, Andreas K Buck, Takahiro Higuchi, Martin G Pomper, Michael A Gorin, Steven P Rowe
OBJECTIVE: Radiotracers targeting prostate-specific membrane antigen (PSMA) have increasingly been recognized as showing uptake in a number of normal structures, anatomic variants, and non-prostate-cancer pathologies. We aimed to explore the frequency and degree of uptake in peripheral ganglia in patients undergoing PET with the PSMA-targeted agent (18)F-DCFPyL. METHODS: A total of 98 patients who underwent (18)F-DCFPyL PET/CT imaging were retrospectively analyzed...
August 22, 2017: Annals of Nuclear Medicine
https://www.readbyqxmd.com/read/28822329/changes-in-gluteal-muscle-forces-with-alteration-of-footstrike-pattern-during-running
#18
Charles Nathan Vannatta, Thomas W Kernozek, Naghmeh Gheidi
Gait retraining is a common form of treatment for running related injuries. Proximal factors at the hip have been postulated as having a role in the development of running related injuries. How altering footstrike affects hip muscles forces and kinematics has not been described. Thus, we aimed to quantify differences in hip muscle forces and hip kinematics that may occur when healthy runners are instructed to alter their foot strike pattern from their habitual rear-foot strike to a forefoot strike. This may gain insight on the potential etiology and treatment methods of running related lower extremity injury...
August 9, 2017: Gait & Posture
https://www.readbyqxmd.com/read/28820647/acute-fatigue-negatively-affects-risk-factors-for-injury-in-trained-but-not-well-trained-habitually-shod-runners-when-running-barefoot
#19
Nicholas Tam, Devon R Coetzee, Safwaan Ahmed, Robert P Lamberts, Yumna Albertus-Kajee, Ross Tucker
INTRODUCTION: Many factors may contribute to running-related injury. These include fatigue and footwear, the combination of which has rarely been studied, in particular with reference to barefoot running, recently advocated as a method to reduce injury risk. METHODS: Twenty-two runners (12 well-trained and 10 trained) participated in a 10 km fatiguing trial. Knee and ankle joint kinematics and kinetics and electromyography were assessed during overground running in the barefoot and shod condition...
October 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28809635/-clinical-results-of-endoscopic-treatment-of-greater-trochanteric-pain-syndrome
#20
P Zeman, M Rafi, P Skala, J Zeman, J Matějka, T Pavelka
PURPOSE OF THE STUDY This retrospective study aims to present short-term clinical outcomes of endoscopic treatment of patients with greater trochanteric pain syndrome (GTPS). MATERIAL AND METHODS The evaluated study population was composed of a total of 19 patients (16 women, 3 men) with the mean age of 47 years (19-63 years). In twelve cases the right hip joint was affected, in the remaining seven cases it was the left side. The retrospective evaluation was carried out only in patients with greater trochanteric pain syndrome caused by independent chronic trochanteric bursitis without the presence of m...
2017: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca
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