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https://www.readbyqxmd.com/read/29327955/co-occurrence-of-mycoplasma-species-and-pigeon-herpesvirus-1-infection-in-racing-pigeons-columba-livia
#1
Tom Hellebuyck, Stephan Göbel, Frank Pasmans, Connie Adriaensen, An Martel
Oropharyngeal swab samples were collected from 438 live racing pigeons ( Columba livia), with and without signs of respiratory disease, that were housed in 220 lofts in 3 provinces in the western part of the Netherlands. Polymerase chain reaction (PCR) was used to identify Mycoplasma species and pigeon herpesvirus-1 (PHV-1) from the samples. In 8.6% of the pigeon lofts tested, signs of respiratory disease were present in pigeons at sampling, and in 30.9% of the sampled pigeon lofts, respiratory signs were observed in pigeons during the 6-month period immediately before sampling...
December 2017: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/29276855/assessing-differences-in-cardiorespiratory-fitness-with-respect-to-maturity-status-in-highly-trained-youth-soccer-players
#2
Greg Doncaster, John Iga, Viswanath Unnithan
PURPOSE: The purpose of the study was to examine differences in measures of cardiorespiratory fitness and determinants of running economy with respect to maturity status in a group of highly trained youth soccer players. METHODS: A total of 21 highly trained youth soccer players participated in this study. On separate visits, players' peak oxygen uptake (VO2peak), running economy at 3 different speeds [8 km·h-1, 80% gaseous exchange threshold (GET), and 95% GET], and pulmonary oxygen uptake (VO2) kinetics were determined...
December 23, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29250819/an-exploration-of-factors-associated-with-older-persons-perceptions-of-the-benefits-of-and-satisfaction-with-a-preventive-home-visit-service
#3
Mette Tøien, Ida Torunn Bjørk, Lisbeth Fagerström
BACKGROUND: Preventive home visits (PHVs) are healthcare services aimed at promoting the health of home-dwelling older people and to support their abilities to live independently. To enhance effectiveness, studies that explore older persons' experiences of PHVs are needed. OBJECTIVE: To assess older persons' perceived benefits and opinions of a PHV service and explore associations between perceived benefits from PHV and relevant sociodemographic/health-related factors...
December 18, 2017: Scandinavian Journal of Caring Sciences
https://www.readbyqxmd.com/read/29234912/advanced-ct-acquisition-protocol-with-a-third-generation-dual-source-ct-scanner-and-iterative-reconstruction-technique-for-comprehensive-prosthetic-heart-valve-assessment
#4
Marguerite E Faure, Laurens E Swart, Marcel L Dijkshoorn, Jos A Bekkers, Marcel van Straten, Koen Nieman, Paul M Parizel, Gabriel P Krestin, Ricardo P J Budde
OBJECTIVES: Multidetector CT (MDCT) is a valuable tool for functional prosthetic heart valve (PHV) assessment. However, radiation exposure remains a concern. We assessed a novel CT-acquisition protocol for comprehensive PHV evaluation at limited dose. METHODS: Patients with a PHV were scanned using a third-generation dual-source CT scanner (DSCT) and iterative reconstruction technique (IR). Three acquisitions were obtained: a non-enhanced scan; a contrast-enhanced, ECG-triggered, arterial CT angiography (CTA) scan with reconstructions at each 5 % of the R-R interval; and a delayed high-pitch CTA of the entire chest...
December 12, 2017: European Radiology
https://www.readbyqxmd.com/read/29214820/weight-management-behaviors-among-mexican-american-youth-cross-sectional-variation-by-timing-of-growth-and-maturation
#5
Jennifer L Gay, Eva V Monsma, Katie Darby Hein
PURPOSE: To assess the association between growth and maturation with weight management behaviors (WMBs) among Mexican American youth. DESIGN: A cross-sectional design was used to measure timing of growth and maturation as well as WMBs. SAMPLE: Students were recruited through physical education classes in south Texas schools. The sample included 623 participants (52.3% female; 49.8% with weight ≥85th percentile) in grades 4 through 12. Students in middle school were purposely oversampled to examine questions around timing of growth and maturation...
January 1, 2017: American Journal of Health Promotion: AJHP
https://www.readbyqxmd.com/read/29196711/the-uniform-pattern-of-growth-and-skeletal-maturation-during-the-human-adolescent-growth-spurt
#6
James O Sanders, Xing Qiu, Xiang Lu, Dana L Duren, Raymond W Liu, Debbie Dang, Mariano E Menendez, Sarah D Hans, David R Weber, Daniel R Cooperman
Humans are one of the few species undergoing an adolescent growth spurt. Because children enter the spurt at different ages making age a poor maturity measure, longitudinal studies are necessary to identify the growth patterns and identify commonalities in adolescent growth. The standard maturity determinant, peak height velocity (PHV) timing, is difficult to estimate in individuals due to diurnal, postural, and measurement variation. Using prospective longitudinal populations of healthy children from two North American populations, we compared the timing of the adolescent growth spurt's peak height velocity to normalized heights and hand skeletal maturity radiographs...
December 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29194185/does-maturity-status-affect-the-relationship-between-anaerobic-speed-reserve-and-multiple-sprints-sets-performance-in-young-soccer-players
#7
Mohamed Amin Selmi, Badriya Al-Haddabi, Mohamed Haj Yahmed, Radhouane Haj Sassi
The purpose of this study is to examine the relationship between repeated-sprint sets (RSS) performance indices and anaerobic speed reserve (ASR) in young soccer players of different maturity status. One hundred and seventy nine young male soccer players (11.1 to 17.8 years) classified as pre- (n=50), circum- (n=60), or post- (n=69) peak height velocity (PHV) performed multi-stage shuttle run test (MRST) to measure maximal aerobic speed (MAS), 30-m sprint with 10-m splits to estimate maximal anaerobic speed (MAnS), and RSS test...
November 29, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29177722/a-cross-sectional-study-on-the-mechanical-properties-of-the-achilles-tendon-with-growth
#8
Yasuyoshi Mogi, Suguru Torii, Yasuo Kawakami, Toshimasa Yanai
PURPOSE: This study aimed to elucidate growth pattern of mechanical properties of the Achilles tendon and to examine if imbalance between growth of bone and muscle-tendon unit occurs during adolescence. METHODS: Fourteen elementary school boys, 30 junior high school boys, 20 high school boys and 15 male adults participated in this study. Based on estimated age at peak height velocity (PHV), junior high school boys were separated into two groups (before or after PHV)...
November 24, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29116377/-effectiveness-of-preventive-house-visits-for-elderly-people-systematic-assessment-of-current-literature
#9
REVIEW
Jörg-Christian Renz, Matthias Meinck
BACKGROUND: Preventive home visits (PHV) document health resources and risks in the domestic environment in order to derive preventive recommendations. An earlier review did not yield reliable proof of their efficacy for the elderly; however, PHV are used increasingly more as a municipal service in Germany. OBJECTIVE: This article evaluates the efficacy of PHV by means of evidence-based criteria. MATERIAL AND METHODS: Independent of the reason, randomized controlled studies (RCT) and systematic reviews on PHV in the elderly (60+ years) that were published after 2004 were identified by means of searching pertinent literature databases...
November 7, 2017: Zeitschrift Für Gerontologie und Geriatrie
https://www.readbyqxmd.com/read/29113497/modelling-height-in-adolescence-a-comparison-of-methods-for-estimating-the-age-at-peak-height-velocity
#10
Andrew J Simpkin, Adrian Sayers, Mark S Gilthorpe, Jon Heron, Kate Tilling
BACKGROUND: Controlling for maturational status and timing is crucial in lifecourse epidemiology. One popular non-invasive measure of maturity is the age at peak height velocity (PHV). There are several ways to estimate age at PHV, but it is unclear which of these to use in practice. AIM: To find the optimal approach for estimating age at PHV. SUBJECTS AND METHODS: Methods included the Preece & Baines non-linear growth model, multi-level models with fractional polynomials, SuperImposition by Translation And Rotation (SITAR) and functional data analysis...
November 7, 2017: Annals of Human Biology
https://www.readbyqxmd.com/read/28986327/anthropometrics-and-maturity-status-a-preliminary-study-of-youth-football-head-impact-biomechanics
#11
Susan W Yeargin, Payton Kingsley, Jim M Mensch, Jason P Mihalik, Eva V Monsma
CONTEXT: There is a paucity of head impact biomechanics research focusing on youth athletes. Little is known about how youth subconcussive head impact tolerances are related to physical size and maturation. OBJECTIVE: To examine the effects of age, anthropometric and maturational status variability on head impact biomechanics. DESIGN: Cross-sectional. SETTING: Outdoor youth football facilities in South Carolina. PARTICIPANTS: Thirty-four male recreational youth football players, 8 to 13yrs...
October 3, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28964690/maturation-related-adaptations-in-running-speed-in-response-to-sprint-training-in-youth-soccer-players
#12
Jason Moran, Dave A Parry, Ieuan Lewis, Jay Collison, Michael C Rumpf, Gavin R H Sandercock
OBJECTIVES: This study investigated the effects of a previously recommended dose of sprint training (ST) in young male soccer players of differing maturity status. DESIGN: Quasi-experimental design. METHODS: Male soccer players from two professional academies were divided into Pre-PHV (Training: n=12; Control: n=13) and Mid-PHV (Training: n=7; Control=10) groups. The training groups completed 16 sprints of 20m with 90s recovery, once per week...
September 21, 2017: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/28931173/hopping-and-landing-performance-in-male-youth-soccer-players-effects-of-age-and-maturation
#13
Paul J Read, Jon L Oliver, Mark B A De Ste Croix, Gregory D Myer, Rhodri S Lloyd
Quantifying hopping and landing performances can assist coaches in identifying young male soccer players who may be at increased risk of injury. The influence of chronological age and maturation on these measures in this population is unknown. Single leg hop for distance (SLHD) and 75% horizontal hop and stick landing force (75%Hop) were examined in a cross-sectional sample (N=400) of elite male youth soccer players. Between-group differences for both chronological age (U11-U18) and stage of maturation (pre-, circa- or post-peak height velocity (PHV)) were analyzed...
November 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28901657/longitudinal-patterns-in-bmi-and-percent-total-body-fat-from-peak-height-velocity-through-emerging-adulthood-into-young-adulthood
#14
Erin Barbour-Tuck, Marta Erlandson, Nazeem Muhajarine, Heather Foulds, Adam Baxter-Jones
OBJECTIVES: Emerging adulthood, a potential critical period, is an understudied period of fat mass accrual. The aim of this study was to describe patterns of fat mass accrual, and weight status, from adolescence, through emerging adulthood, into young adulthood. METHODS: One-hundred-eighteen participants (59 male) were measured repeatedly for 20 years. Annual measures of height, weight, and body composition (DXA) were taken. Calculated measures included: peak height velocity (PHV), biological age (BA; years from PHV), body mass index (BMI), and percent total body fat (%TBF)...
September 13, 2017: American Journal of Human Biology: the Official Journal of the Human Biology Council
https://www.readbyqxmd.com/read/28818103/enhancement-of-poly-3-hydroxybutyrate-co-3-hydroxyvalerate-accumulation-in-arxula-adeninivorans-by-stabilization-of-production
#15
Mateusz Biernacki, Marek Marzec, Thomas Roick, Reinhard Pätz, Kim Baronian, Rüdiger Bode, Gotthard Kunze
BACKGROUND: In recent years the production of biobased biodegradable plastics has been of interest of researchers partly due to the accumulation of non-biodegradable plastics in the environment and to the opportunity for new applications. Commonly investigated are the polyhydroxyalkanoates (PHAs) poly(hydroxybutyrate) and poly(hydroxybutyrate-co-hydroxyvalerate) (PHB-V). The latter has the advantage of being tougher and less brittle. The production of these polymers in bacteria is well established but production in yeast may have some advantages, e...
August 17, 2017: Microbial Cell Factories
https://www.readbyqxmd.com/read/28816503/pubertal-development-of-body-size-and-soccer-specific-functional-capacities-in-adolescent-players
#16
Humberto Moreira Carvalho, José A Lekue, Susana M Gil, Iraia Bidaurrazaga-Letona
Pubertal growth in body size and functional capacities were examined in adolescent soccer players (n = 33). The average age at baseline was 10.9 (9.8-11.8 years). Peak height velocity (PHV) and growth curves for body mass and functional performance (countermovement jump, 15-m sprint, agility and Yo-Yo intermittent recovery test - level 1) were determined with Bayesian multilevel models. Estimates for PHV and age at PHV were 8.1 cm/year (95% credible interval: 4.2-18.5 cm/year) and 12.9 years (95% credible interval: 11...
August 17, 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28746660/somatic-maturation-and-the-relationship-between-bone-mineral-variables-and-types-of-sports-among-adolescents-cross-sectional-study
#17
Ricardo Ribeiro Agostinete, Igor Hideki Ito, Han Kemper, Carlos Marcelo Pastre, Mário Antônio Rodrigues-Júnior, Rafael Luiz-de-Marco, Rômulo Araújo Fernandes
CONTEXT AND OBJECTIVE: Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: Cross-sectional study, São Paulo State University (UNESP). METHODS: The study was composed of 93 adolescents (12 to 16...
May 2017: São Paulo Medical Journal, Revista Paulista de Medicina
https://www.readbyqxmd.com/read/28585026/standardized-uptake-values-in-fdg-pet-ct-for-prosthetic-heart-valve-endocarditis-a-call-for-standardization
#18
Asbjørn M Scholtens, Laurens E Swart, Henryk J Te Kolste, Ricardo P J Budde, Marnix G E H Lam, Hein J Verberne
BACKGROUND: The significance of and threshold values for the standardized uptake value (SUV) in FDG PET/CT to diagnose prosthetic heart valve (PHV) endocarditis (PVE) are unclear at present. METHODS: A literature search was performed in the PubMed and EMBASE medical databases, comprising the following terms: (FDG OR *fluorode* OR *fluoro-de*) AND (endocarditis OR prosthetic heart valve OR valve replacement). Studies reporting SUVs correlated to the diagnosis of PVE were selected for analysis...
June 5, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28580404/the-associations-of-exposure-to-combined-hormonal-contraceptive-use-on-bone-mineral-content-and-areal-bone-mineral-density-accrual-from-adolescence-to-young-adulthood-a-longitudinal-study
#19
Stefan A Jackowski, Adam D G Baxter-Jones, Ashlee J McLardy, Roger A Pierson, Carol D Rodgers
BACKGROUND: The association of long term combined hormone based contraceptives (CHC) use on bone mineral content (BMC) and areal bone mineral density (aBMD) development remains controversial, as it appears that the relationship may be age-dependent. The purpose of this study was to investigate the long-term associations of CHC exposure on the accrual of bone parameters from adolescence into young-adulthood. METHODS: 110 women (67 exposed to CHC) were drawn from the Pediatric Bone Mineral Accrual Study (PBMAS)...
December 2016: Bone Reports
https://www.readbyqxmd.com/read/28479496/effect-of-early-life-physical-growth-on-midlife-vertebral-dimensions-the-northern-finland-birth-cohort-1966-study
#20
Petteri Oura, Markus Paananen, Marja Ojaniemi, Juha Auvinen, Juho-Antti Junno, Jaro Karppinen, Jaakko Niinimäki
Small vertebral size is an independent risk factor for osteoporotic vertebral fractures. Physical growth in early life is related to bone health in later life, but the relationship of early growth versus vertebral size has been inconclusively studied. Utilizing the Northern Finland Birth Cohort 1966 with a 47-year follow-up, we investigated how physical growth in early life is associated with midlife vertebral dimensions. We obtained several physical growth parameters of 1) birth (gestational age, length, weight, BMI), 2) infancy and childhood (peak height velocity (PHV), peak weight velocity (PWV), adiposity peak (AP), adiposity rebound (AR)), and 3) puberty (BMI at growth spurt take-off (TO), PHV, height change)...
May 4, 2017: Bone
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