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https://www.readbyqxmd.com/read/28714773/impact-of-martial-arts-judo-karate-and-kung-fu-on-bone-mineral-density-gains-in-adolescents-of-both-genders-9-month-follow-up-martial-arts-and-bone-density
#1
Igor H Ito, Han C G Kemper, Ricardo R Agostinete, Kyle R Lynch, Diego G D Christofaro, Enio R Ronque, Rômulo A Fernandes
PURPOSE: To compare bone mineral density gains in adolescents of both genders stratified according to different martial art styles in a 9-month follow-up study. METHODS: The longitudinal study consisted of 29 adolescents of both genders and age between 11 and 17 years stratified into control group ([CG] not engaged in any sport) and 50 fighters (Kung-fu / karate-KF / KT, n = 29; Judo, n = 21). All 79 subjects underwent anthropometric measures (weight, height, leg length and height set), dual energy x-ray absorptiometry (Bone Mineral Density [BMD], in g/cm(2)) at two moments, baseline and nine months later...
July 17, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28706440/reliability-of-an-integrated-ultrasound-and-stereophotogrammetric-system-for-lower-limb-anatomical-characterisation
#2
Frederick Greatrex, Erica Montefiori, Thomas Grupp, Josef Kozak, Claudia Mazzà
BACKGROUND: Lower extremity analysis for preoperative total knee and hip arthroplasty routines can increase surgery success rate and hence reduce associated costs. Current tools are limited by being invasive, limited to supine analysis, or too expensive. This study aimed to propose and validate a device, OrthoPilot®, based on the combined use of a stereophotogrammetric and ultrasound system which can in vivo and noninvasively measure varus/valgus, flexion/extension, femur and tibia torsion, and femur and tibia lengths...
2017: Applied Bionics and Biomechanics
https://www.readbyqxmd.com/read/28706175/-characteristics-and-risk-factors-for-falls-in-tertiary-hospital-inpatients
#3
Eun Ju Choi, Young Shin Lee, Eun Jung Yang, Ji Hui Kim, Yeon Hee Kim, Hyeoun Ae Park
PURPOSE: The aim of this study was to explore characteristics of and risk factors for accidental inpatient falls. METHODS: Participants were classified as fallers or non-fallers based on the fall history of inpatients in a tertiary hospital in Seoul between June 2014 and May 2015. Data on falls were obtained from the fall report forms and data on risk factors were obtained from the electronic nursing records. Characteristics of fallers and non-fallers were analyzed using descriptive statistics...
June 2017: Journal of Korean Academy of Nursing
https://www.readbyqxmd.com/read/28704523/leg-length-change-after-opening-wedge-and-closing-wedge-high-tibial-osteotomy-a-meta-analysis
#4
Jun-Ho Kim, Hyun-Jung Kim, Dae-Hee Lee
BACKGROUND: Theoretical considerations suggest that leg length increases after opening wedge high tibial osteotomy (HTO) and decreases after closing wedge HTO; however, in vivo studies have yielded conflicting results. This meta-analysis therefore assessed changes in leg length after opening wedge and closing wedge HTO. METHODS: All studies comparing pre- and postoperative leg length in patients who underwent opening and/or closing wedge HTO were included. Two reviewers independently recorded data from each study in terms of sample size as well as preoperative and postoperative leg length of open wedge and/or closed wedge HTO groups...
2017: PloS One
https://www.readbyqxmd.com/read/28704303/gain-of-length-loss-of-strength-alteration-in-muscle-strength-after-femoral-leg-lengthening-in-young-patients-a-prospective-longitudinal-observational-study
#5
Andreas H Krieg, Sebastian Gehmert, Olivia L Neeser, Xaver Kaelin, Bernhard M Speth
This study aimed to determine the alteration in maximum isokinetic torque in patients after intramedullary femoral leg lengthening. Thirty patients with a median leg-length discrepancy of 3.0 cm underwent femoral limb lengthening with an intramedullary motorized device. Maximum isokinetic, concentric torque of the extensors, and flexors of the knee was measured before (n=30) and 2 years after surgery (n=21). Postoperatively, a significant difference remained for the maximum isokinetic torque of the extensors (22%) between the lengthened and the normal leg, which might have been caused by muscle response to the distraction procedure itself in the form of higher stiffness, less immediate displacement, and inconsistent force relaxation properties...
July 12, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28704299/slipped-capital-femoral-epiphysis-in-children-younger-than-10-years-old-clinical-characteristics-and-efficacy-of-physeal-sparing-procedures
#6
Mi Hyun Song, Woo Young Jang, Moon Seok Park, Won Joon Yoo, In Ho Choi, Tae-Joon Cho
We aimed to investigate the clinical characteristics of slipped capital femoral epiphysis (SCFE) in patients aged less than 10 years and identify the efficacy of physeal-sparing procedures in this age group. Demographic data of 18 SCFE patients aged less than 10 years were compared with those of 71 older patients to investigate the clinical characteristics. The efficacy of physeal-sparing procedures (n=5) was investigated compared with that of in-situ screw fixation (n=13). Obese children were noticeably more common among SCFE patients aged less than 10 years (P=0...
July 12, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28701553/walking-like-an-ant-a-quantitative-and-experimental-approach-to-understanding-locomotor-mimicry-in-the-jumping-spider-myrmarachne-formicaria
#7
Paul S Shamble, Ron R Hoy, Itai Cohen, Tsevi Beatus
Protective mimicry, in which a palatable species avoids predation by being mistaken for an unpalatable model, is a remarkable example of adaptive evolution. These complex interactions between mimics, models and predators can explain similarities between organisms beyond the often-mechanistic constraints typically invoked in studies of convergent evolution. However, quantitative studies of protective mimicry typically focus on static traits (e.g. colour and shape) rather than on dynamic traits like locomotion...
July 12, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28700708/lower-extremity-emg-driven-modeling-of-walking-with-automated-adjustment-of-musculoskeletal-geometry
#8
Andrew J Meyer, Carolynn Patten, Benjamin J Fregly
Neuromusculoskeletal disorders affecting walking ability are often difficult to manage, in part due to limited understanding of how a patient's lower extremity muscle excitations contribute to the patient's lower extremity joint moments. To assist in the study of these disorders, researchers have developed electromyography (EMG) driven neuromusculoskeletal models utilizing scaled generic musculoskeletal geometry. While these models can predict individual muscle contributions to lower extremity joint moments during walking, the accuracy of the predictions can be hindered by errors in the scaled geometry...
2017: PloS One
https://www.readbyqxmd.com/read/28697693/pivotal-study-of-a-next-generation-balloon-expandable-stent-graft-for-treatment-of-iliac-occlusive-disease
#9
Jean Bismuth, Bruce H Gray, Andrew Holden, Christopher Metzger, Jean Panneton
PURPOSE: To evaluate the safety and efficacy of a next-generation balloon-expandable stent-graft for the treatment of arterial occlusive disease in patients with de novo or restenotic lesions in the common and/or external iliac arteries. METHODS: A prospective, multicenter, single-arm safety and efficacy study ( ClinicalTrials.gov identifier: NCT02080871) of the VBX Stent Graft for treatment of de novo or restenotic lesions in the iliac arteries was conducted under an Investigational Device Exemption at 26 US sites and 1 New Zealand center...
July 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28697421/meat-quality-attributes-of-agile-wallabies
#10
Geert H Geesink, Aaron van den Heuvel, Warren Hunt
Meat quality traits of Agile Wallaby (Macropus agilis) M. longissimus (loin) and M. semimembranosus (topside) were investigated. Both muscles exhibited a relatively high pH (>5.7) and dark colour (L*-, a*-, and b*-values). Aging the loins from 2 to 21days p.m. had a significant effect on shear force. However, the results regarding shear force, myofibrillar fragmentation index (MFI) and degradation of desmin and troponin-T suggested that the aging response largely occurred within 2days p.m. Suspension of carcasses from one leg resulted in a side effect on shear force of the loin at 2 and 7days p...
June 29, 2017: Meat Science
https://www.readbyqxmd.com/read/28692359/prevention-of-limb-length-discrepancy-in-total-hip-arthroplasty
#11
Babar Kayani, Jurek Pietrzak, Fahad S Hossain, Sujith Konan, Fares S Haddad
Total hip arthroplasty is a highly effective and cost-efficient procedure but postoperative limb length discrepancy is a common source of patient dissatisfaction and litigation. This article provides a systematic, stepwise approach for identifying and proactively managing risk factors associated with limb length discrepancy following total hip arthroplasty. This review explores preoperative history taking, clinical examination, radiological templating, implant positioning, soft tissue balancing, and intraoperative surgical techniques for minimizing leg length discrepancy while maintaining stability and restoring mechanical function following total hip arthroplasty...
July 2, 2017: British Journal of Hospital Medicine
https://www.readbyqxmd.com/read/28689958/one-stage-endovascular-treatment-of-a-symptomatic-penetrating-ulcer-in-the-lusorian-artery-and-an-aaa-a-challenging-case-in-a-rare-entity
#12
Mirko Esche, Pavel Sebesta, Sven Seifert
INTRODUCTION: We report a case of a 57-year old man with a successful total endovascular treatment of a symptomatic penetrating arterial ulcer (PAU) of a lusorian artery together with a standard endovascular abdominal aortic aneurysm (AAA) repair. The lusorian artery is an aberrant subclavian artery and a congenital aortic arch anomaly with a reported prevalence of 0.4 to 2.6 %. Typical for the base of the lusorian artery is a Kommerell diverticulum making an endovascular approach even more difficult...
July 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28682840/functional-balance-deterioration-on-daily-activities-in-patients-with-migraine-a-controlled-study
#13
Gabriela F Carvalho, Lidiane L Florencio, Carina F Pinheiro, Fabiola Dach, Marcelo E Bigal, Débora Bevilaqua-Grossi
OBJECTIVE: This study aimed to assess functional activities in different subgroups of patients with migraine. DESIGN: One-hundred forty subjects were uniformly divided into the following four groups: headache-free controls, migraine with aura, without aura, and chronic migraine. Subjects performed the tests walk across, tandem walk, sit to stand, and step up and over at the Balance Master system (Neurocom). RESULTS: All migraine groups had slower velocity and shorter step length at the walk across test (P < 0...
July 7, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28678866/correlation-between-investment-in-sexual-traits-and-valve-sexual-dimorphism-in-cyprideis-species-ostracoda
#14
Maria João Fernandes Martins, Gene Hunt, Rowan Lockwood, John P Swaddle, David J Horne
Assessing the long-term macroevolutionary consequences of sexual selection has been hampered by the difficulty of studying this process in the fossil record. Cytheroid ostracodes offer an excellent system to explore sexual selection in the fossil record because their readily fossilized carapaces are sexually dimorphic. Specifically, males are relatively more elongate than females in this superfamily. This sexual shape difference is thought to arise so that males carapaces can accommodate their very large copulatory apparatus, which can account for up to one-third of body volume...
2017: PloS One
https://www.readbyqxmd.com/read/28676056/investigation-of-implantable-signal-transmission-characteristics-based-on-visible-data-of-the-human-leg
#15
Yue-Ming Gao, Yan-Ting Ye, Shi Lin, Željka Lučev Vasić, Mang-I Vai, Min Du, Mario Cifrek, Sio-Hang Pun
BACKGROUND: Signal transmission characteristics between implanted medical devices and external equipment has been a common key issue, as has the problem of supplying energy to the devices. It can be used to enable signal transmission from implanted devices that the human body's conductive properties. Using signal transmission by galvanic coupling is one of the most effective signal transmission methods. METHODS: The signal transmission characteristics by galvanic coupling of implantable devices using a frequency range of 10 kHz to 1 MHz was analyzed in this article...
July 4, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28674737/systematic-review-of-the-outcome-of-total-hip-arthroplasty-in-patients-with-sequelae-of-legg-calv%C3%A3-perthes-disease
#16
Sammy A Hanna, Khaled M Sarraf, Manoj Ramachandran, Pramod Achan
BACKGROUND: Total hip arthroplasty (THA) in patients with sequelae of Legg-Calvé-Perthes disease (LCP) is technically demanding because of the disease related deformities occuring in the proximal femur and/or the multiplanar deformities secondary to corrective osteotomies in childhood. Little is known about the long-term outcome of the procedure in this challenging group of patients. METHODS: We carried out a systematic review of the literature to determine the functional outcome, complications and revision rate of THA in patients with sequelae of LCP disease...
July 3, 2017: Archives of Orthopaedic and Trauma Surgery
https://www.readbyqxmd.com/read/28673384/testosterone-therapy-of-men-with-type-2-diabetes-mellitus-a-randomized-double-blinded-placebo-controlled-study
#17
Line Velling Magnussen
The prevalence of chronic diseases including obesity and type 2 diabetes mellitus (T2D) are increasing. The usage of testosterone replacement therapy (TRT) has escalated in the Western countries during the past decades especially in aging men without clear organic indication for TRT although the safety of long-term TRT has not been clarified regarding the risk of cardiovascular disease (CVD). Aging men with T2D have an increased risk of CVD and these patients are often characterized by lowered T-levels, ectopic fat depots, a deranged adipokine profile with e...
July 2017: Danish Medical Journal
https://www.readbyqxmd.com/read/28672148/perfluorinated-substances-and-telomeres-in-an-arctic-seabird-cross-sectional-and-longitudinal-approaches
#18
Pierre Blévin, Frédéric Angelier, Sabrina Tartu, Paco Bustamante, Dorte Herzke, Børge Moe, Claus Bech, Geir Wing Gabrielsen, Jan Ove Bustnes, Olivier Chastel
Telomeres are non-coding DNA repeats located at the termini of eukaryotic chromosomes, regulated by dynamic processes balancing shortening and maintenance. Despite a mechanism to slow-down telomere shortening, cell division leads to progressive attrition of chromosomes, leading to the onset of cellular senescence or apoptosis. However, telomere restoration based on telomerase activity is the primary mechanism for telomere maintenance. Telomere length is associated to health and survival and can be impacted by a broad panel of environmental factors...
June 30, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28669859/effect-of-the-upper-instrumented-vertebral-level-upper-vs-lower-thoracic-spine-on-gait-ability-after-corrective-surgery-for-adult-spinal-deformity
#19
Mitsuru Yagi, Nobuyuki Fujita, Osahiko Tsuji, Narihiro Nagoshi, Yoshiyuki Yato, Takashi Asazuma, Ken Ishii, Masaya Nakamura, Morio Matsumoto, Kota Watanabe
BACKGROUND CONTEXT: The relationship between gait pattern and the level of upper instrumented vertebra (UIV) in surgically treated patients with adult spinal deformity (ASD) has not been fully documented. PURPOSE: To assess the effect of UIV level for the gait pattern in ASD STUDY DESIGN/SETTING: Prospective case series. PATIENT SAMPLE: Thirty surgically treated consecutive female ASD with lumbosacral fusion (age 67.0±8.4 years; body mass index (BMI) 22...
June 29, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28669548/an-effective-balancing-response-to-lateral-perturbations-at-pelvis-level-during-slow-walking-requires-control-in-all-three-planes-of-motion
#20
Zlatko Matjačić, Matjaž Zadravec, Andrej Olenšek
In this study we investigated balancing responses to lateral perturbations during slow walking (0.85m/s). A group of seven healthy individuals walked on an instrumented treadmill while being perturbed at the level of waist at left heel strike in outward and inward lateral directions. Centre of mass (COM) and centre of pressure (COP), rotation of pelvis around vertical axis, step lengths, step widths and step times were assessed. The results have shown that beside control of COP in lateral direction, facilitated by adequate step widths, control of COP in sagittal direction, slowing down movement of COM was present after commencement of lateral perturbations...
June 21, 2017: Journal of Biomechanics
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