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Daniel J Southwell, Shane A Petersen, Tyson A C Beach, Ryan B Graham
Altering footwear worn during performance of the barbell back squat has been shown to change motion patterns, but it is not completely understood how this affects biomechanical loading demands. The primary objective was to compare lower back and extremity net joint moments in 24 experienced weightlifters (12M, 12F) who performed 80% one-repetition maximum back squats under three different footwear conditions (barefoot, running shoes, weightlifting shoes). Results showed that there was a significant main effect of footwear condition on the knee extension moment (p=0...
October 12, 2016: Journal of Electromyography and Kinesiology
Dewei Zhao, Frank Witte, Faqiang Lu, Jiali Wang, Junlei Li, Ling Qin
As a new generation of medical metallic material, magnesium (Mg) and its alloys with or without surface coating have attracted a great deal of attention due to its biodegradability and potential for avoiding a removal operation after the implant has fulfilled its function for surgical fixation of injured musculoskeletal tissues. Although a few clinical cases on Mg-based orthopaedic implants were reported more than a century ago, it was not until recently that clinical trials using these implants with improved physicochemical properties were carried out in Germany, China and Korea for bone fracture fixation...
October 11, 2016: Biomaterials
Zi-Qi Shen, Shan-Yan Gao, Shawn Xiang Li, Tie-Ning Zhang, Cai-Xia Liu, Hai-Chen Lv, Yuan Zhang, Ting-Ting Gong, Xin Xu, Chao Ji, Qi-Jun Wu, Da Li
AIM: To perform a meta-analysis of available cohort studies on the association between sertraline use by pregnant women in the first trimester and the findings of congenital anomalies in infants. METHODS: A comprehensive search of articles published from the index date through December 31, 2015 investigating the aforementioned associations was conducted on PubMed and Web of Science. Mesh headings used included the terms "serotonin reuptake inhibitor," "sertraline," "congenital anomalies" and "obstetrical outcome...
October 22, 2016: British Journal of Clinical Pharmacology
William T Obremskey, Norele Cutrera, Christopher M Kidd
BACKGROUND: The purpose of this study was to determine optimal treatment of stable tibial shaft fractures using intramedullary nailing (IMN) or casting. MATERIALS AND METHODS: We performed a multi-center prospective study cohort. Patients with stable tibia shaft fractures meeting Sarmiento's criteria (isolated closed fractures with less than 12 mm of shortening and 10° of angulation) were enrolled prospectively and treated with either a reamed IMN with static interlocking screws or closed reduction followed by long-leg casting...
October 21, 2016: Journal of Orthopaedics and Traumatology: Official Journal of the Italian Society of Orthopaedics and Traumatology
Walter Pirker, Regina Katzenschlager
Human gait depends on a complex interplay of major parts of the nervous, musculoskeletal and cardiorespiratory systems. The individual gait pattern is influenced by age, personality, mood and sociocultural factors. The preferred walking speed in older adults is a sensitive marker of general health and survival. Safe walking requires intact cognition and executive control. Gait disorders lead to a loss of personal freedom, falls and injuries and result in a marked reduction in the quality of life. Acute onset of a gait disorder may indicate a cerebrovascular or other acute lesion in the nervous system but also systemic diseases or adverse effects of medication, in particular polypharmacy including sedatives...
October 21, 2016: Wiener Klinische Wochenschrift
Xi Chen, Heng Qiu, Chao Wang, Yu Yuan, Jennifer Tickner, Jiake Xu, Jun Zou
Choline, a hydrophilic cation, has versatile physiological roles throughout the body, including cholinergic neurotransmission, memory consolidation and membrane biosynthesis and metabolism. Choline kinases possess enzyme activity that catalyses the conversion of choline to phosphocholine, which is further converted to cytidine diphosphate-coline (CDP-choline) in the biosynthesis of phosphatidylcholine (PC). PC is a major constituent of the phospholipid bilayer which constitutes the eukaryotic cell membrane, and regulates cell signal transduction...
October 8, 2016: Cytokine & Growth Factor Reviews
J J Paredes, Nelly Andarawis-Puri
Tendon injuries, known as tendinopathies, are common musculoskeletal injuries that affect a wide range of the population. Canonical tendon healing is characterized by fibrosis, scar formation, and the loss of tissue mechanical and structural properties. Understanding the regenerative tendon environment is an area of increasing interest in the field of musculoskeletal research. Previous studies have focused on utilizing individual elements from the fields of biomechanics, developmental biology, cell and growth factor therapy, and tissue engineering in an attempt to develop regenerative tendon therapeutics...
October 21, 2016: Annals of the New York Academy of Sciences
Breanna L Alman, Evan Coffman, Anna Maria Siega-Riz, Thomas J Luben
BACKGROUND: Water and water-based beverages constitute a major part of daily fluid intake for pregnant women, yet few epidemiologic studies have investigated the role of water consumption on birth outcomes. METHODS: We used data from the National Birth Defects Prevention Study to conduct a case-control study investigating associations between maternal water consumption during pregnancy and birth defects (BD). We used interview data on water consumption during the first trimester of pregnancy in 14,454 cases (major BDs n ≥ 50) and 5,063 controls...
October 21, 2016: Birth Defects Research. Part A, Clinical and Molecular Teratology
Katherine Bubric, Alan Hedge
BACKGROUND: Laptop computers have surpassed desktop computers in popularity, especially among college student users. The portability of these devices raises concerns regarding healthy usage patterns in different settings and there is a need to investigate the postures with which these devices are being used and associated reports of musculoskeletal discomfort. OBJECTIVE: This study investigated the configurations in which laptops are used and the prevalence of musculoskeletal discomfort associated with laptop use in a survey of college students...
October 17, 2016: Work: a Journal of Prevention, Assessment, and Rehabilitation
Emily Dalton, Natasha A Lannin, Kate Laver, Leo Ross, Stephen Ashford, Annie McCluskey, Anne Cusick
PURPOSE: The Disabilities of Arm, Shoulder and Hand (DASH) questionnaire is a patient reported outcome measure for evaluating upper limb function in people with musculoskeletal conditions. While the DASH has good psychometric properties when used with people with musculoskeletal conditions, it has not been tested with adults after stroke. METHODS: Data for n = 61 adults following stroke (aged 32-93 years, 44% male) were analyzed to test validity and reliability of the DASH for use with a stroke population...
October 21, 2016: Disability and Rehabilitation
Neige M Journy, Kieran McHugh, Richard W Harbron, Mark S Pearce, Amy Berrington de Gonzalez
OBJECTIVE: To describe medical conditions associated with the use of CT in children or young adults with no previous cancer diagnosis. METHODS: Radiologists' reports for scans performed in 1995-2008 in patients <22 years of age were collected from the Radiology Information System in 44 hospitals of Great Britain. By semantic search, an automated procedure identified 192 medical conditions within the radiologists' reports. Manual validation of a subsample by a paediatric radiologist showed a satisfactory performance of the automatic coding procedure...
October 21, 2016: British Journal of Radiology
Ada Wai Tung Fung, Wai-Chi Chan, Corine Sau-Man Wong, Eric Yu-Hai Chen, Roger Man-Kin Ng, Edwin Ho-Ming Lee, Wing-Chung Chang, Se-Fong Hung, Eric Fuk-Chi Cheung, Pak-Chung Sham, Helen Fung-Kum Chiu, Ming Lam, Tin-Po Chiang, Jim van Os, Joseph Tak-Fai Lau, Glyn Lewis, Paul Bebbington, Linda Chiu Wa Lam
BACKGROUND: Anxiety disorders are prevalent yet under-recognized in late life. We examined the prevalence of anxiety disorders in a representative sample of community dwelling older adults in Hong Kong. METHOD: Data on 1,158 non-demented respondents aged 60-75 years were extracted from the Hong Kong Mental Morbidity survey (HKMMS). Anxiety was assessed with the revised Clinical Interview Schedule (CIS-R). RESULT: One hundred and thirty-seven respondents (11...
October 21, 2016: International Psychogeriatrics
Jungo Imanishi, Yasuo Yazawa, Tsuyoshi Saito, Michio Shimizu, Hiroyuki Kawashima, Keisuke Ae, Akihiko Matsumine, Tomoaki Torigoe, Hideshi Sugiura, Susumu Joyama
No abstract text is available yet for this article.
October 20, 2016: International Journal of Clinical Oncology
Ben Schram, Wayne Hing, Mike Climstein
BACKGROUND: Stand up paddle boarding (SUP) is a rapidly growing sport and recreational activity where anecdotal evidence exists for its proposed health, fitness and injury rehabilitation benefits. While limited scientific evidence exists to substantiate these claims, previous studies have shown that high levels of fitness, strength and balance exists amongst participants of this sport. The purpose of this study was to conduct a training intervention on a group of previously untrained individuals to ascertain the potential of SUP on various health parameters...
2016: BMC Sports Science, Medicine and Rehabilitation
Lyndon G Amorin-Woods, Gregory F Parkin-Smith, Lee Nedkoff, Colleen Fisher
BACKGROUND: This paper reports the quantitative outcomes of a mixed-methods pilot study of the characteristics and demographics of chiropractic practices and patients in Western Australia. METHODS: This was a mixed-methods data transformation model (qualitative to quantitative) pilot study. A non-random sample of chiropractic practices across Western Australia was recruited and data collected anonymously from consecutive new patients using an online platform. Data covered practice and patient demographics and characteristics, alongside quality of life measures...
2016: Chiropractic & Manual Therapies
Erik H Van Iterson, Courtney Gramm, Nicholas R Randall, Thomas P Olson
Although pathophysiologic links between postmenopause and healthy aging remain unclear, both factors are associated with increased blood pressure and sympathetic nerve activity (SNA) in women. Activation of polymodal musculoskeletal neural afferents originating within adventia of venules modulates SNA and blood pressure control during exercise in healthy adults. We hypothesized transient subsystolic regional circulatory occlusion (RCO) during exercise sensitizes these afferents leading to augmented systemic vascular resistance (SVR) mediated increased mean arterial pressure (MAP) in postmenopause versus premenopause...
October 7, 2016: American Journal of Physiology. Heart and Circulatory Physiology
Kenneth F Baker, Sharmila Jandial, Ben Thompson, David Walker, Ken Taylor, Helen E Foster
BACKGROUND: Structured examination routines have been developed as educational resources for musculoskeletal clinical skills teaching, including Gait-Arms-Legs-Spine (GALS), Regional Examination of the Musculoskeletal System (REMS) and paediatric GALS (pGALS). In this study, we aimed to assess the awareness and use of these examination routines in undergraduate medical teaching in UK medical schools and UK postgraduate clinical practice. METHODS: Electronic questionnaires were distributed to adult and paediatric musculoskeletal teaching leads at UK medical schools and current UK doctors in training...
October 21, 2016: BMC Medical Education
Leyla Baykal Selçuk, Deniz Aksu Arıca, Hanife Baykal Şahin, Savas Yaylı, Sevgi Bahadır
BACKGROUND/OBJECTIVE: Acne vulgaris is a chronic inflammatory disease affecting the pilosebaceous unit in the skin. Isotretinoin is a synthetic vitamin A derivative regarded as the most effective agent in the treatment of acne. There have recently been increasing reports of adverse effects of isotretinoin on the skeletal system. Our aim in this study was to evaluate the rheumatic side-effects triggered by this drug, and particularly the prevalence of sacroiliitis. MATERIALS AND METHODS: Seventy-three patients receiving isotretinoin due to moderate or severe acne vulgaris were included...
October 20, 2016: Cutaneous and Ocular Toxicology
A Craig, N A Elbers, J Jagnoor, B Gopinath, A Kifley, M Dinh, I Pozzato, R Q Ivers, M Nicholas, I D Cameron
OBJECTIVE: To investigate the psychological impact of traffic injuries in bicyclists (cyclists) with comparisons to car occupants who also have sustained traffic injuries. Factors predictive of elevated psychological distress were also investigated. METHODS: An inception cohort prospective design was used. Participants included cyclists who sustained a physical injury (n = 238) aged ≥17 years (mean age 41.7yrs), assessed within 28 days of the crash, following medical examination by a registered healthcare practitioner...
October 20, 2016: Traffic Injury Prevention
Eric C Honert, Karl E Zelik
INTRODUCTION: Inverse dynamics joint kinetics are often used to infer contributions from underlying groups of muscle-tendon units (MTUs). However, such interpretations are confounded by multiarticular (multi-joint) musculature, which can cause inverse dynamics to over- or under-estimate net MTU power. Misestimation of MTU power could lead to incorrect scientific conclusions, or to empirical estimates that misguide musculoskeletal simulations, assistive device designs, or clinical interventions...
2016: PloS One
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