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https://www.readbyqxmd.com/read/29334580/the-power-load-relationship-during-a-countermovement-jump-a-joint-level-analysis
#1
Kym J Williams, Dale W Chapman, Elissa J Phillips, Nick Ball
This study aimed to investigate if hip, knee and ankle peak power is influenced by the relative load lifted, altering the joint and system load-power relationship during a countermovement jump (CMJ). Twenty-Three male national representative athletes (age: 20.3 ± 3.1y, squat 1RM: 133.8 ± 24.8kg) completed three CMJs at relative barbell loads of 0, 10, 20, 30 and 40% of an athlete's estimated back squat 1RM. Ground reaction force and joint kinematics were captured using a 16 camera motion capture array integrated with two in ground tri-axial force plates...
January 12, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29333872/effects-and-underlying-mechanisms-of-unstable-shoes-on-chronic-low-back-pain-a-randomized-controlled-trial
#2
Juan Francisco Lisón, Borja Ortega-Santana, Álvaro Antón-Nogués, Palmy González-Requena, Cristina Vera-Hervás, Julio Doménech-Fernández, Daniel Sánchez-Zuriaga, Pablo Salvador-Coloma
OBJECTIVE: To investigate the effects that wearing unstable shoes has on disability, trunk muscle activity, and lumbar spine range of motion (ROM) in patients with chronic lower back pain (CLBP). DESIGN: Randomized controlled trial. SETTING: Orthopedic Surgery Service. PARTICIPANTS: We randomized 40 adults with nonspecific CLBP either to an unstable shoes group ( n = 20) or to the control group ( n = 20). INTERVENTION: The participants in the unstable shoes group were advised to wear these shoes for a minimum of six hours a day for four weeks...
January 1, 2018: Clinical Rehabilitation
https://www.readbyqxmd.com/read/29333789/physical-training-in-a-medical-fitness-room-for-patients-with-chronic-diseases-functional-and-metabolic-outcomes
#3
Oshrat E Tayer-Shifman, Yigal Bar-On, David Pereg, Alon Y Hershko
BACKGROUND: Physical inactivity is a pivotal factor in the development and progression of various chronic diseases. However, most fitness facilities exclude unhealthy individuals. Therefore, an exercise program that admits such patients is imperative. OBJECTIVES: To evaluate the effectiveness of a fitness facility that admits adult subjects with multiple chronic diseases. METHODS: We conducted a retrospective screening of patient records from the Medical Fitness Facility at Meir Medical Center, Israel...
January 2018: Israel Medical Association Journal: IMAJ
https://www.readbyqxmd.com/read/29333419/evaluation-of-a-polyurethane-foam-dressing-impregnated-with-3-povidone-iodine-betafoam-in-a-rat-wound-model
#4
Jin Won Lee, Kyo Young Song
Purpose: The purpose of this study was to evaluate the efficacy of Betafoam in terms of wound healing and safety. Methods: Fifty-four male adult Sprague-Dawley rats (weight, 200-250 g) were used in the study. Full-thickness skin defects were created on the back of each rats. The rats were assigned to 6 groups according to the type of wound dressing used (n = 9 for each group): Betafoam, Allevyn-Ag, Mepilex-Ag, Medifoam silver, Polymem-Ag, and gauze. The wound size, histological findings, and amount of DNA on the changed dressings for each group were analyzed and compared...
January 2018: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/29333345/ontogeny-reversal-and-phylogenetic-analysis-of-turritopsis-sp-5-cnidaria-hydrozoa-oceaniidae-a-possible-new-species-endemic-to-xiamen-china
#5
Jun-Yuan Li, Dong-Hui Guo, Peng-Cheng Wu, Li-Sheng He
Ontogeny reversal, as seen in some cnidarians, is an unprecedented phenomenon in the animal kingdom involving reversal of the ordinary life cycle. Three species of Turritopsis have been shown to be capable of inverted metamorphosis, a process in which the pelagic medusa transforms back into a juvenile benthic polyp stage when faced with adverse conditions. Turritopsis sp.5 is a species of Turritopsis collected from Xiamen, China which presents a similar ability, being able to reverse its life cycle if injured by mechanical stress...
2018: PeerJ
https://www.readbyqxmd.com/read/29333203/biomimetic-microfluidic-platform-for-the-quantification-of-transient-endothelial-monolayer-permeability-and-therapeutic-transport-under-mimicked-cancerous-conditions
#6
Christopher George Uhl, Vladimir R Muzykantov, Yaling Liu
Therapeutic delivery from microvasculature to cancerous sites is influenced by many factors including endothelial permeability, vascular flow rates/pressures, cancer secretion of cytokines and permeabilizing agents, and characteristics of the chosen therapeutics. This work uses bi-layer microfluidics capable of studying dye and therapeutic transport from a simulated vessel to a cancerous region while allowing for direct visualization and quantification of endothelial permeability. 2.5 to 13 times greater dye transport was observed when utilizing small dye sizes (FITC) when compared to larger molecules (FITC-Dextran 4 kDa and FITC-Dextran 70 kDa), respectively...
January 2018: Biomicrofluidics
https://www.readbyqxmd.com/read/29332735/within-day-and-between-day-reliability-of-thickness-measurements-of-abdominal-muscles-using-ultrasound-during-abdominal-hollowing-and-bracing-maneuvers
#7
Mahnaz Aboufazeli, Nima Afshar-Mohajer
Ultrasonography imaging has been used as a non-invasive method to estimate the thickness and relative activities of the abdominal muscles in patients with lower back pain (LBP). However, the statistical reliability of US thickness measurements of abdominal muscles, including transversus abdominis (TrA), internal oblique (IO) and external oblique (EO) muscles during abdominal hollowing (AH) and abdominal bracing (AB) maneuvers has not been well-investigated. This study was performed on a total of 20 female subjects (10 with LBP and 10 without LBP) in the age range of 25-55 years to assess within-day and between-day reliability of the measurements...
January 2018: Journal of Bodywork and Movement Therapies
https://www.readbyqxmd.com/read/29332101/is-kinesio-taping-to-generate-skin-convolutions-effective-for-increasing-local-blood-circulation
#8
Jae-Man Yang, Jung-Hoon Lee
BACKGROUND It is unclear whether traditional application of Kinesio taping, which produces wrinkles in the skin, is effective for improving blood circulation. This study investigated local skin temperature changes after the application of an elastic therapeutic tape using convolution and non-convolution taping methods (CTM/NCTM). MATERIAL AND METHODS Twenty-eight pain-free men underwent CTM and NCTM randomly applied to the right and left sides of the lower back. Using infrared thermography, skin temperature was measured before, immediately after application, 5 min later, 15 min later, and after the removal of the tape...
January 14, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29330962/skin-conformal-polymer-electrodes-for-clinical-ecg-and-eeg-recordings
#9
Flurin Stauffer, Moritz Thielen, Christina Sauter, Séverine Chardonnens, Simon Bachmann, Klas Tybrandt, Christian Peters, Christofer Hierold, Janos Vörös
Preparation-free and skin compliant biopotential electrodes with high recording quality enable wearables for future healthcare and the Internet of Humans. Here, super-soft and self-adhesive electrodes are presented for use on dry and hairy skin without skin preparation or attachment pressure. The electrodes show a skin-contact impedance of 50 kΩ cm2 at 10 Hz that is comparable to clinical standard gel electrodes and lower than existing dry electrodes. Microstructured electrodes inspired by grasshopper feet adhere repeatedly to the skin with a force of up to 0...
January 13, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29330230/reducing-sedentary-behaviour-to-decrease-chronic-low-back-pain-the-stand-back-randomised-trial
#10
Bethany Barone Gibbs, Andrea L Hergenroeder, Sophy J Perdomo, Robert J Kowalsky, Anthony Delitto, John M Jakicic
OBJECTIVE: The Stand Back study evaluated the feasibility and effects of a multicomponent intervention targeting reduced prolonged sitting and pain self-management in desk workers with chronic low back pain (LBP). METHODS: This randomised controlled trial recruited 27 individuals with chronic LBP, Oswestry Disability Index (ODI) >10% and desk jobs (sitting ≥20 hours/week). Participants were randomised within strata of ODI (>10%-<20%, ≥20%) to receive bimonthly behavioural counselling (in-person and telephone), a sit-stand desk attachment, a wrist-worn activity-prompting device and cognitive behavioural therapy for LBP self-management or control...
January 12, 2018: Occupational and Environmental Medicine
https://www.readbyqxmd.com/read/29329123/golf-injuries-epidemiology-pathophysiology-and-treatment
#11
Ioannis C Zouzias, Jeff Hendra, Jason Stodelle, Orr Limpisvasti
Increasing numbers of people are playing golf. Golf is a unique sport in that the ability to participate at a high level is not limited by age. In addition, participants tend to play more rather than less as they grow older. Injuries can occur at any point during the golf swing, from takeaway through follow-through. Upper extremity injuries can affect the hands, elbow, and shoulder and are usually a result of the golf swing at impact. Injuries are also common in the lower back as well as the lower extremities...
January 11, 2018: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/29328282/recommended-conceptual-optical-system-design-for-china-s-large-optical-infrared-telescope-lot
#12
Donglin Ma
Recently, China is planning to construct a new large optical-infrared telescope (LOT), in which the aperture of the primary mirror is as large as 12m. China's LOT is a general-purpose telescope, which is aimed to work with multiple scientific instruments such as spectrographs. Based on the requirements of LOT telescope, we have compared the performance of Ritchey-Chrétien (RC) design and Aplanatic-Gregorian (AG) design from the perspective of scientific performance and construction cost. By taking the primary focal ratio, Nasmyth focal ratio, and telescope's site condition into consideration, we finally recommend a RC f/1...
January 8, 2018: Optics Express
https://www.readbyqxmd.com/read/29327826/correlation-between-hypermobility-score-and-injury-rate-in-artistic-gymnastics
#13
Bojan Bukva, Goran Vrgoč, Dejan Madić, Goran Sporiš, Nebojša Trajković
BACKGROUND: Generalized Joint Hypermobility (GJH) is suggested as a contributing factor for injuries in young athletes and adults. It is presumed that GJH causes decreased joint stability, thereby increasing the risk of joint and soft tissue injuries during sports activities. The aim of this study was to determine the correlation between the hypermobility rate (using the Beighton`s modification of the Carter-Wilkinson criteria of hypermobility) in gymnasts and injury rate, during the period of one year...
January 10, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29325537/factors-associated-with-the-prevalence-of-back-pain-and-work-absence-in-shipyard-workers
#14
Seiji Watanabe, Toshiaki Takahashi, Jun Takeba, Hiromasa Miura
BACKGROUND: We conducted a questionnaire survey of shipyard workers to identify difficulties experienced due to orthopedic or musculoskeletal disorders. METHODS: The subjects were 375 workers (male, 361; female, 14) who worked for a single shipbuilding company. Questionnaire items covered the working environment, including work environment, working posture, and the weight of objects that the subject dealt with, as well as physical and lifestyle characteristics, namely smoking habits, drinking habits, sleeping hours, medications, exercise habits, and any weight gain of 20 kg or more since the age of 20...
January 11, 2018: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/29322970/minimally-invasive-transforaminal-lumbar-interbody-fusion-using-bone-cement-augmented-pedicle-screws-for-lumbar-spondylolisthesis-in-patients-with-osteoporosis-case-series-and-review-of-literature
#15
Venkata Ramesh Chandra Vemula, Bodapati Chandramowliswara Prasad, M A Jagadeesh, Jayachandar Vuttarkar, Sanjeev Kumar Akula
BACKGROUND: Instrumentation in patients with osteoporosis is challenging. Bone cement-augmented fenestrated pedicle screw fixation is a new procedure for fixation in the osteoporotic bone; and, applying minimally invasive techniques to the above is a challenging and novel concept. AIMS: To evaluate the clinical and radiological outcome of minimally invasive spine surgery transforaminal lumbar interbody fusion (MIS-TLIF) in patients with spondylolisthesis and poor bone quality, performed with rigid instrumentation using bone cement [poly(methylmethacrylate)]-augmented fenestrated pedicle screws...
January 2018: Neurology India
https://www.readbyqxmd.com/read/29322966/the-influence-of-adjunctive-caudal-epidural-steroid-injection-on-the-therapeutic-effect-of-transforaminal-epidural-steroid-injection
#16
Atilla Kircelli, Tufan Cansever, Cem Yılmaz
BACKGROUND: Epidural steroid injection is widely used to treat the short and long-term symptoms of low back and radicular pain. To the best of our knowledge, the influence of transforaminal epidural steroid injection (TFSI) combined with caudal epidural steroid injection (CESI) on pain intensity, patient satisfaction, and quality of life in lumbar radiculopathy has not been examined. AIM: To evaluate the short and long-term efficacy of TFSI, and TFSI combined with CESI (TFSI + CESI) in patients with lumbar radiculopathy...
January 2018: Neurology India
https://www.readbyqxmd.com/read/29322696/the-j-curve-between-diastolic-blood-pressure-and-risk-of-all-cause-and-cardiovascular-death
#17
Heejin Kimm, Yejin Mok, Sun Ju Lee, Sunmi Lee, Joung Hwan Back, Sun Ha Jee
BACKGROUND AND OBJECTIVES: The J-curve phenomenon between diastolic blood pressure (DBP) and mortality has been reported repeatedly in treated patients. However, the baseline risk of low DBP has not been fully explored. This study was to examine the relationship between DBP and risk of mortality from all-cause, atherosclerotic vascular diseases (ASCVD), and ischemic heart disease (IHD) using a prospective cohort of general population. METHODS: We analyzed 1,234,435 participants of the Korean Cancer Prevention Study cohort (789,255 men, 30-95 years of age) who had a medical evaluation from 1992 to 1995 using Cox proportional hazards models...
January 2018: Korean Circulation Journal
https://www.readbyqxmd.com/read/29322309/the-global-spine-care-initiative-a-summary-of-guidelines-on-invasive-interventions-for-the-management-of-persistent-and-disabling-spinal-pain-in-low-and-middle-income-communities
#18
REVIEW
Emre Acaroğlu, Margareta Nordin, Kristi Randhawa, Roger Chou, Pierre Côté, Tiro Mmopelwa, Scott Haldeman
PURPOSE: The purpose of this study was to synthesize recommendations on the use of common elective surgical and interventional procedures for individuals with persistent and disabling non-radicular/axial with or without myelopathy, radicular back pain, cervical myelopathy, symptomatic spinal stenosis, and fractures due to osteoporosis. This review was to inform a clinical care pathway on the patient presentations where surgical interventions could reasonably be considered. METHODS: We synthesized recommendations from six evidence-based clinical practice guidelines and one appropriate use criteria guidance for the surgical and interventional management of persistent and disabling spine pain...
January 10, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29320547/dyslipidemia-chronic-inflammation-and-subclinical-atherosclerosis-in-children-and-adolescents-infected-with-hiv-the-posithive-health-study
#19
Luiz Rodrigo Augustemak de Lima, Edio Luiz Petroski, Yara Maria Franco Moreno, Diego Augusto Santos Silva, Erasmo Benício de Moraes Santos Trindade, Aroldo Prohmann de Carvalho, Isabela de Carlos Back
HIV-infected children and adolescents may be at risk for cardiovascular disease due to chronic inflammation and exacerbation of risk factors. The aim of this study was as follows: 1) compare cardiovascular risk factors, chronic inflammation, and carotid intima-media thickness (IMTc) between the HIV and control groups; 2) determine the association of HIV and antiretroviral (ART) regimens with cardiovascular risk factors, chronic inflammation, and IMTc; and 3) identify variables associated with elevated IMTc...
2018: PloS One
https://www.readbyqxmd.com/read/29319387/relationship-between-physical-activity-disability-and-physical-fitness-profile-in-sedentary-latina-breast-cancer-survivors
#20
Alexis Ortiz, Maribel Tirado, Daniel C Hughes, Velda Gonzalez, JaeJoon Song, Scherezade K Mama, Karen Basen-Engquist
OBJECTIVE: To report baseline data from a physical activity (PA) intervention for Latina breast cancer survivors, and assess the relationship between PA, fitness, and disability. METHODS: Eighty-nine Latina breast cancer survivors from San Juan, PR and Houston, TX (age: 55.4 ± 9.9 years; BMI: 29.87 ± 5.62 kg/m2; ≥ 3 months post-treatment) participated in this study. At baseline participants completed fitness testing (six-minute walk test [6MWT], 30-second sit-stand; grip strength, lower and upper extremity and low back strength, shoulder range of motion, balance testing), and assessment of physical activity (PA) and disability...
January 10, 2018: Physiotherapy Theory and Practice
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