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https://www.readbyqxmd.com/read/28715403/improving-strength-power-muscle-aerobic-capacity-and-glucose-tolerance-through-short-term-progressive-strength-training-among-elderly-people
#1
Eva A Andersson, Per Frank, Marjan Pontén, Björn Ekblom, Maria Ekblom, Marcus Moberg, Kent Sahlin
This protocol describes the simultaneous use of a broad span of methods to examine muscle aerobic capacity, glucose tolerance, strength, and power in elderly people performing short-term resistance training (RET). Supervised progressive resistance training for 1 h three times a week over 8 weeks was performed by RET participants (71±1 years, range 65-80). Compared to a control group without training, the RET showed improvements on the measures used to indicate strength, power, glucose tolerance, and several parameters of muscle aerobic capacity...
July 5, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28689326/occurrence-and-distribution-of-organophosphate-esters-in-surface-soil-and-street-dust-from-chongqing-china-implications-for-human-exposure
#2
Ming-Jing He, Ting Yang, Zhi-Hao Yang, Qi Li, Shi-Qiang Wei
In the present study, the occurrence, concentrations, and distribution of organophosphate esters (OPEs) were studied in surface soil and street dust samples collected from different sites of Chongqing, a metropolitan city in western China. Furthermore, nondietary daily intakes (DIs) of OPEs only through dust ingestion absorption were assessed between toddlers and adults. The ∑OPEs contents ranged from 10.1 to 315 ng/g dw and from 348 to 1369 ng/g dw in surface soil and street dust samples, respectively, with tris (2-butoxyethyl) phosphate (TBOEP), the predominant OPEs in surface soil, whereas tris (chloroethyl) phosphate (TCEP) occupied a relatively high proportion in street dust samples...
July 8, 2017: Archives of Environmental Contamination and Toxicology
https://www.readbyqxmd.com/read/28667897/rate-of-force-development-and-muscle-activation-of-trunk-muscles-in%C3%A2-women-with-and-without-low-back-pain-a-case-control-study
#3
Denise Martineli Rossi, Mary Hellen Morcelli, Adalgiso Coscrato Cardozo, Benedito Sérgio Denadai, Mauro Gonçalves, Marcelo Tavella Navega
OBJECTIVE: To evaluate the rate of force development (RFD) and the rate of electromyography rise (RER) of global and local trunk muscles in women with and without low back pain. DESIGN: Cross-sectional study. SETTING: Laboratory setting. PARTICIPANTS: Twenty-eight women divided into low back pain (LBP, n = 14) and control groups (CG, n = 14) participated in this study. MAIN OUTCOME MEASURES: Subjects performed isometric contractions of trunk using an isokinetic dynamometer, and simultaneously the electromyography (EMG) signals were collected for global (rectus abdominis and longissimus thoracic) and local (internal oblique and multifidus) muscles...
July 2017: Physical Therapy in Sport
https://www.readbyqxmd.com/read/28606466/hip-rate-of-force-development-and-strength-are-impaired-in-females-with-patellofemoral-pain-without-signs-of-altered-gluteus-medius-and-maximus-morphology
#4
Guilherme S Nunes, Christian John Barton, Fábio Viadanna Serrão
OBJECTIVES: To compare rate of force development (RFD) and isometric muscle strength of the hip abductors and extensors; and the thickness and the amount of non-contractile tissue of the gluteus medius and maximus between females with and without patellofemoral pain (PFP). DESIGN: Cross-sectional study. METHODS: Fifty-four physically active females (27 with PFP and 27 healthy individuals) were studied. Hip muscle isometric strength and RFD was evaluated using isokinetic dynamometry...
May 24, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28595868/impaired-hip-muscle-strength-in-patients-with-femoroacetabular-impingement-syndrome
#5
Signe Kierkegaard, Inger Mechlenburg, Bent Lund, Kjeld Søballe, Ulrik Dalgas
OBJECTIVES: Patients with femoroacetabular impingement (FAI) experience hip pain as well as decreased function and lowered quality of life. The aim was to compare maximal isometric and isokinetic muscle strength (MVC) during hip flexion and extension and rate of force development (RFD) during extension between patients with FAI and a matched reference group. Secondary, the aim was to compare patient hips and subgroups defined by gender and age as well as to investigate associations between hip muscle strength and self-reported outcomes...
May 25, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28592280/white-blood-cell-count-predicts-the-odds-of-kidney-function-decline-in-a-chinese-community-based-population
#6
Fangfang Fan, Jia Jia, Jianping Li, Yong Huo, Yan Zhang
BACKGROUND: Inflammatory processes are very important in the development of kidney disease. Nevertheless, the association between white blood cell (WBC) count and the risk of renal dysfunction has not been well-established, especially in subjects without chronic kidney disease (CKD). Our study investigated the association between WBC count and kidney function decline in a Chinese community-based population with baseline estimated glomerular filtration rate (eGFR) ≥60 mL/min/1.73 m(2)...
June 7, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28589431/bone-marrow-fibrosis-at-diagnosis-predicts-survival-for-primary-acute-myeloid-leukemia
#7
Z Wu, R Chen, L Wu, L Zou, F Ding, M Wang, X Liu
PURPOSE: As a desmoplastic reaction, tissue fibrosis played crucial roles in solid tumor progression, chemo-resistance, and consequently heralded poor clinical outcome. Previous studies implied the effects of marrow fibrosis on prognosis for acute lymphoblastic leukemia were disputable. In this study, we aimed to investigate the potential role of bone marrow fibrosis on clinical survival in acute myeloid leukemia (AML) patients. METHODS: Bone marrow fibrosis (evaluated as reticulin fiber density, RFD) in bone marrow sections was evaluated at diagnosis via computer technology...
June 6, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/28521193/issues-raised-by-the-reference-doses-for-perfluorooctane-sulfonate-and-perfluorooctanoic-acid
#8
Zhaomin Dong, Md Mezbaul Bahar, Joytishna Jit, Bruce Kennedy, Brian Priestly, Jack Ng, Dane Lamb, Yanju Liu, Luchun Duan, Ravi Naidu
On 25th May 2016, the U.S. EPA released reference doses (RfDs) for Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA) of 20ng/kg/day, which were much more conservative than previous values. These RfDs rely on the choices of animal point of departure (PoD) and the toxicokinetics (TK) model. At this stage, considering that the human evidence is not strong enough for RfD determination, using animal data may be appropriate but with more uncertainties. In this article, the uncertainties concerning RfDs from the choices of PoD and TK models are addressed...
May 15, 2017: Environment International
https://www.readbyqxmd.com/read/28513277/effect-of-gastrocnemius-kinesio-taping-on-countermovement-jump-performance-and-vertical-stiffness-following-muscle-fatigue
#9
Sahar Boozari, Mohammad Ali Sanjari, Ali Amiri, Ismail Ebrahimi Takamjani
CONTEXT: Kinesio Tape (KT) is a widely used intervention in the fields of sports and rehabilitation. However, its effects on lower extremity behavior during functional activities are not entirely known. OBJECTIVE: To test the hypothesis that application of KT can change performance and vertical stiffness during the countermovement jump (CMJ) before and after a fatigue protocol. DESIGN: A pre and post design to study the effect of KT in two situations, pre- and post-fatigue...
May 17, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28498325/the-health-risk-of-cd-released-from-low-cost-jewelry
#10
Miloslav Pouzar, Magdalena Zvolská, Oldřich Jarolím, Lenka Audrlická Vavrušová
The composition of the surface layer of 13 low-cost jewelry samples with a high Cd content was analyzed using an energy-dispersive X-ray fluorescence spectrometer (ED XRF). The analyzed jewels were obtained in cooperation with the Czech Environmental Inspectorate. The jewels were leached in two types of artificial sweat (acidic and alkaline) for 7 days. Twenty microliters of the resulting solution was subsequently placed on a paper carrier and analyzed by an LIBS (Laser-Induced Breakdown Spectrometry) spectrometer after drying...
May 12, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28486433/human-indoor-exposure-to-airborne-halogenated-flame-retardants-influence-of-airborne-particle-size
#11
Mark J La Guardia, Erika D Schreder, Nancy Uding, Robert C Hale
Inhalation of halogenated flame-retardants (HFRs) released from consumer products is an important route of exposure. However, not all airborne HFRs are respirable, and thus interact with vascular membranes within the gas exchange (alveolar) region of the lung. HFRs associated with large (>4 µm), inhalable airborne particulates are trapped on the mucosal lining of the respiratory tract and then are expelled or swallowed. The latter may contribute to internal exposure via desorption from particles in the digestive tract...
May 9, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28483548/evaluation-of-triclosan-in-minnesota-lakes-and-rivers-part-ii-human-health-risk-assessment
#12
Lisa J Yost, Timothy R Barber, P Robinan Gentry, Michael J Bock, Jennifer L Lyndall, Marie C Capdevielle, Brian P Slezak
Triclosan, an antimicrobial compound found in consumer products, has been detected in low concentrations in Minnesota municipal wastewater treatment plant (WWTP) effluent. This assessment evaluates potential health risks for exposure of adults and children to triclosan in Minnesota surface water, sediments, and fish. Potential exposures via fish consumption are considered for recreational or subsistence-level consumers. This assessment uses two chronic oral toxicity benchmarks, which bracket other available toxicity values...
August 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28466449/distribution-characterization-and-human-health-risk-assessment-of-polycyclic-aromatic-hydrocarbons-pahs-in-ovia-river-southern-nigeria
#13
Isioma Tongo, Lawrence Ezemonye, Kingsley Akpeh
The levels and distribution of polycyclic aromatic hydrocarbons (PAHs) in surface water, sediment, and fish (Clarias gariepinus) samples from Ovia River, Southern Nigeria, were evaluated, to assess the contamination profile, dietary intake, and human health risks associated with exposure. Results showed that naphthalene, acenaphthylene, and fluoranthene were the most dominant contaminant in water, sediment, and fish, respectively, with mean concentrations (μg/L) of 3.08, 45.4, and 90.7. Spatial distribution showed high occurrence of PAHs in Ekenwan, the downstream station, for all the matrices...
June 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28465071/human-health-assessment-for-long-term-oral-ingestion-of-diethylene-glycol
#14
William M Snellings, Kenneth E McMartin, Marcy I Banton, Fred Reitman, Joanna Klapacz
Diethylene glycol (DEG) is an organic chemical that is used mostly as a chemical intermediate and has minor uses as a solvent or antifreeze in consumer products; these minor uses could result in potential human exposure. Potential short and long-term human exposures also occur from misuses. The considerable reporting of DEG misuses as a substitute for other solvents in drug manufacturing and summaries of important events in the history of DEG poisonings are reviewed. Given the potential for human exposure, the disposition and toxicity of DEG were examined, and a health assessment was performed...
June 30, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28446284/-correlation-between-bone-marrow-fibrous-proliferation-and-prognosis-of-acute-myeloid-leukemia
#15
Bin Zhu, Shao-Ying Pan, Zhi-Yong Ding, Wen-Li Zhao, Ju-Hua Zhu
OBJECTIVE: To investigate the correlation between the bone marrow fibrous proliferation and the prognosis of acute myeloid leukemia(AML). METHODS: The quantitative method was used to analyze the reticulin fiber density (RFD) of AML patients. the bone marrow sections from 39 primary AML patients and 35 normal controls were collected to compare the RFD between these 2 groups. The prognosis value of RFD for AML were estimated by using appropriate statistical analysis...
April 2017: Zhongguo Shi Yan Xue Ye Xue za Zhi
https://www.readbyqxmd.com/read/28445230/comparison-between-unilateral-and-bilateral-plyometric-training-on-single-and-double-leg-jumping-performance-and-strength
#16
Gregory C Bogdanis, Athanasios Tsoukos, Olga Kaloheri, Gerasimos Terzis, Panagiotis Veligekas, Lee E Brown
This study compared the effects of unilateral and bilateral plyometric training on single and double-leg jumping performance, maximal strength and rate of force development (RFD). Fifteen moderately trained subjects were randomly assigned to either a unilateral (U, n=7) or bilateral group (B, n=8). Both groups performed maximal effort plyometric leg exercises two times per week for 6 weeks. The B group performed all exercises with both legs, while the U group performed half the repetitions with each leg, so that total exercise volume was the same...
April 18, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28431618/muscle-strength-and-power-in-persons-with-multiple-sclerosis-a-systematic-review-and-meta-analysis
#17
REVIEW
Mlk Jørgensen, U Dalgas, I Wens, L G Hvid
BACKGROUND: Multiple sclerosis (MS) is a chronic disease in the central nervous system which causes a number of physical symptoms including impairments of muscle mechanical function (muscle strength, muscle power and explosive muscle strength (~rate of force development, RFD)). However, a full overview of the existing knowledge regarding muscle mechanical function in persons with MS (PwMS) is still pending. OBJECTIVES: To systematically review 1) the psychometric properties of isokinetic dynamometry testing in PwMS, and 2) studies comparing muscle mechanical function in PwMS to matched healthy controls (HC)...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28426514/comparison-of-the-hang-high-pull-and-loaded-jump-squat-for-the-development-of-vertical-jump-and-isometric-force-time-characteristics
#18
Dustin J Oranchuk, Tracey L Robinson, Zachary J Switaj, Eric J Drinkwater
Weightlifting movements have high skill demands and require expert coaching. Loaded jumps have a comparably lower skill demand, but may be similarly effective for improving explosive performance. The purpose of this study was to compare vertical jump performance, isometric force, and rate of force development (RFD) following a ten-week intervention employing the hang high-pull (hang-pull) or trap-bar jump squat (jump-squat). Eighteen NCAA Division II swimmers (8 males, 10 females) with at least one year of resistance training experience volunteered to participate...
April 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28421342/selective-retina-therapy-with-automatic-real-time-feedback-controlled-dosimetry-for-chronic-central-serous-chorioretinopathy-in-korean-patients
#19
Young Gun Park, Seungbum Kang, Minhee Kim, Nari Yoo, Young Jung Roh
PURPOSE: To evaluate the safety and efficacy of selective retina therapy (SRT) with real-time feedback-controlled dosimetry (RFD) in the treatment of chronic central serous chorioretinopathy (CSC). METHODS: In this retrospective case series study, 50 eyes of 49 patients with chronic CSC demonstrating focal or diffuse foveal leakages on fundus fluorescein angiography (FFA) were included. Following evaluation of test spots at temporal arcades, SRT (wavelength 527 nm, pulse repetition rate 100 Hz, pulse energy ramp with maximal 15 pulses) with retinal spot diameter of 200 μm was applied to the areas of each leakage observed on fluorescein angiography...
July 2017: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/28401310/the-efficacy-of-periodised-resistance-training-on-neuromuscular-adaptation-in-older-adults
#20
Jenny A Conlon, Robert U Newton, James J Tufano, Luis E Peñailillo, Harry G Banyard, Amanda J Hopper, Ashley J Ridge, G Gregory Haff
PURPOSE: This study compared the effect of periodised versus non-periodised (NP) resistance training on neuromuscular adaptions in older adults. METHODS: Forty-one apparently healthy untrained older adults (female = 21, male = 20; 70.9 ± 5.1 years; 166.3 ± 8.2 cm; 72.9 ± 13.4 kg) were recruited and randomly stratified to an NP, block periodised (BP), or daily undulating periodised (DUP) training group. Outcome measures were assessed at baseline and following a 22-week resistance training intervention (3 day week(-1)), including: muscle cross-sectional area (CSA), vertical jump performance, isometric and isokinetic peak torque, isometric rate of force development (RFD), and muscle activation...
April 11, 2017: European Journal of Applied Physiology
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