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https://www.readbyqxmd.com/read/28210647/association-of-quadriceps-strength-and-psychosocial-factors-with-single-leg-hop-performance-in-patients-with-meniscectomy
#1
Chao-Jung Hsu, Steven Z George, Terese L Chmielewski
BACKGROUND: Clinicians use the single-leg hop test to assess readiness for return to sports after knee injury. Few studies have reported the results of single-leg hop testing after meniscectomy. Additionally, the contributions of impairments in quadriceps strength and psychosocial factors to single-leg hop performance are unknown. PURPOSE: To compare single-leg hop performance (distance and landing mechanics) between limbs and to examine the association of single-leg hop performance with quadriceps strength and psychosocial factors in patients with meniscectomy...
December 2016: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/28202103/deterrent-activity-of-hops-flavonoids-and-their-derivatives-against-stored-product-pests
#2
J Jackowski, J Popłoński, K Twardowska, J Magiera-Dulewicz, M Hurej, E Huszcza
Five flavonoids from hops, two of their derivatives, along with naringenin used as a model compound, were tested for their antifeedant activity against three coleopteran stored product pests: Sitophilus granarius L., Tribolium confusum Duv. and Trogoderma granarium Everts. The introduction, into the tested flavonoid molecules, of additional structural fragments such as prenyl or dimethylpyran moiety, is proposed to significantly alter the deterrent activity of the compounds. The prenyl moiety in flavonoids increased the deterrent activity of these compounds in all three of the grain feeding species used in the tests...
February 16, 2017: Bulletin of Entomological Research
https://www.readbyqxmd.com/read/28192831/training-effects-of-the-fifa-11-and-harmoknee-on-several-neuromuscular-parameters-of-physical-performance-measures
#3
Francisco Ayala, Carlos Pomares-Noguera, Francisco Javier Robles-Palazón, Maria Del Pilar García-Vaquero, Ignacio Ruiz-Pérez, Sergio Hernández-Sánchez, Mark De Ste Croix
The main purpose of this study was to analyse the training effects of the FIFA 11+ and Harmoknee on several parameters of physical performance measures in youth amateur football players. 41 adolescent players were randomised within each team into 2 groups (team 1: control vs. FIFA 11+; team 2: control vs. Harmoknee). The FIFA 11+ and Harmoknee groups performed the program 3 times a week for 4 weeks; the control groups completed their usual warm-up routines. 13 physical performance measures (joint range of motion, dynamic postural control, single legged hop limb symmetry, sprint time, jumping height and agility) were assessed...
February 13, 2017: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/28192512/explosive-strength-and-endurance-adaptations-in-young-elite-soccer-players-during-two-soccer-seasons
#4
Riccardo Di Giminiani, Christiano Visca
The purpose of the present study was to investigate the explosive strength and endurance adaptations in young elite soccer players who underwent a supervised training program for a period of two years. Nineteen players, with seven years of training experience (age: 13.3 ± 0.1 years; body weight: 57.9 ± 4.9 kg; height: 168.9 ± 4.7 cm; BMI: 20.1 ± 1.1 kg/m2), voluntarily participated in the present study. The testing sessions were performed at the beginning of the preparation period in the first (T1), second (T2), and third year (T3)...
2017: PloS One
https://www.readbyqxmd.com/read/28188927/xanthohumol-isolated-from-humulus-lupulus-prevents-thrombosis-without-increased-bleeding-risk-by-inhibiting-platelet-activation-and-mtdna-release
#5
Guang Xin, Zeliang Wei, Chengjie Ji, Huajie Zheng, Jun Gu, Limei Ma, Wenfang Huang, Susan L Morris-Natschke, Jwu-Lai Yeh, Rui Zhang, Chaoyi Qin, Li Wen, Zhihua Xing, Yu Cao, Qing Xia, Ke Li, Hai Niu, Kuo-Hsiung Lee, Wen Huang
AIM: As the global population has reached 7 billion and the baby boom generation reaches old age, thrombosis has become the major contributor to the global disease burden. It has been reported that, in moderate doses, beer may protect against thrombosis. Xanthohumol (XN), an antioxidant, is found at high concentrations in hop cones (Humulus lupulus L.) and is a common ingredient of beer. Here, the aim of the present work was to investigate the effects of XN on antithrombotic and antiplatelet activities, and study its mechanism...
February 7, 2017: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/28188299/novel-mechanism-of-decyanation-of-gdc-0425-by-cytochrome-p450
#6
Ryan H Takahashi, Jason S Halladay, Michael Siu, Yuan Chen, Cornelis Eca Hop, Siamak Cyrus Khojasteh, Shuguang Ma
GDC-0425 is an orally bioavailable small molecule inhibitor of checkpoint kinase 1 (Chk1) that was investigated as a novel co-therapy to potentiate chemotherapeutic drugs such as gemcitabine. In the radiolabeled ADME study in Sprague-Dawley rats, trace level but long-lived 14C-labeled plasma thiocyanate was observed. This thiocyanate originated from metabolic decyanation of GDC-0425 and rapid conversion of cyanide to thiocyanate. Excretion studies indicated decyanation was a minor metabolic pathway, but placing 14C at nitrile magnified its observation...
February 10, 2017: Drug Metabolism and Disposition: the Biological Fate of Chemicals
https://www.readbyqxmd.com/read/28186834/elevated-knee-joint-kinetics-and-reduced-ankle-kinetics-are-present-during-jogging-and-hopping-after-achilles-tendon-ruptures
#7
Richard W Willy, Annelie Brorsson, Hayley C Powell, John D Willson, Roy Tranberg, Karin Grävare Silbernagel
BACKGROUND: Deficits in plantarflexor function are common after an Achilles tendon rupture. These deficits may result in an altered distribution of joint loads during lower extremity tasks. HYPOTHESIS: We hypothesized that, regardless of treatment, the Achilles tendon-ruptured limb would exhibit deficits in ankle kinematics and joint power while exhibiting elevated knee joint power and patellofemoral joint loads during walking, jogging, and hopping. We further hypothesized that this loading pattern would be most evident during jogging and hopping...
February 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28182864/an-initiative-to-facilitate-park-usage-discovery-and-physical-activity-among-children-and-adolescents-in-greenville-county-south-carolina-2014
#8
Melissa L Fair, Andrew T Kaczynski, S Morgan Hughey, Gina M Besenyi, Alicia R Powers
INTRODUCTION: Parks are important settings for increasing population-level physical activity (PA). The objective of this study was to evaluate Park Hop, an incentivized scavenger-hunt-style intervention designed to influence park usage, discovery, park-based PA, and perceptions of parks among children and adolescents in Greenville County, South Carolina. METHODS: We used 2 data collection methods: matched preintervention and postintervention parent-completed surveys and in-park observations during 4 days near the midpoint of the intervention...
February 9, 2017: Preventing Chronic Disease
https://www.readbyqxmd.com/read/28182531/relationships-of-functional-tests-following-acl-reconstruction-exploratory-factor-analyses-of-the-lower-extremity-assessment-protocol
#9
Melissa DiFabio, Lindsay V Slater, Grant Norte, John Goetschius, Joseph M Hart, Jay Hertel
CONTEXT: After ACL reconstruction (ACLR), deficits are often assessed using a variety of functional tests, which can be time consuming. It is unknown whether these tests provide redundant or unique information. OBJECTIVE: To explore relationships between components of a battery of functional tests, the Lower Extremity Assessment Protocol (LEAP), to aid in developing the most informative, concise battery of tests for evaluating ACLR patients. DESIGN: Descriptive, cross-sectional...
February 9, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28177633/mapping-interaction-energies-in-chorismate-mutase-with-the-fragment-molecular-orbital-method
#10
Spencer R Pruitt, Casper Steinmann
The Claisen rearrangement of chorismate to prephenate is mapped across the entire reaction pathway using the fragment molecular orbital (FMO) method. Three basis sets (6-31G(d), cc-pVDZ, and pcseg-1) are studied to provide guidance towards obtaining high accuracy with the FMO method on such systems. Using a fragmentation scheme of one residue per fragment, the FMO method using the 6-31G(d) basis set at the second-order Møller-Plesset perturbation theory (MP2) level of theory with the hybrid orbital projection (HOP) fragmentation scheme provides the most reliable results across the entire reaction pathway...
February 8, 2017: Journal of Physical Chemistry. A
https://www.readbyqxmd.com/read/28176927/association-between-sensory-function-and-hop-performance-and-self-reported-outcomes-in-patients-with-anterior-cruciate-ligament-injury
#11
Anna Cronström, Ewa M Roos, Eva Ageberg
BACKGROUND: In patients with anterior cruciate ligament (ACL) deficiency (ACLD) or reconstruction (ACLR), sensory deficits are commonly assessed as knee kinesthesia using time-consuming laboratory equipment. Portable equipment such as that used for evaluation of vibration sense would be preferable. In contrast to kinesthesia, vibration sense is not well studied in these patients. OBJECTIVES: 1) To study the association between kinesthesia and vibration sense to investigate if one sensory measurement can replace the other; and 2) to determine the clinical relevance by investigating associations between the sensory measurements and functional performance and patient-reported outcomes in patients with ACLD or ACLR...
2017: Open Access Journal of Sports Medicine
https://www.readbyqxmd.com/read/28162020/holder-pasteurization-affects-s100b-concentrations-in-human-milk
#12
Chiara Peila, Alessandra Coscia, Enrico Bertino, Giovanni Li Volti, Fabio Galvano, Gerard Ha Visser, Diego Gazzolo
PURPOSE: Donor milk (DM) represents an important nutrition source for high-risk newborns. Holder pasteurization (HoP) is the most recommended procedure for DM treatment, providing a good compromise between microbiological safety and biological quality. HoP was previously shown to affect DM cytokines, growth factors and hormones levels, whilst no data concerning the possible effects of HoP on neurobiomarkers (NB) are available. Therefore, our study investigated whether the concentration in DM of a well-known NB involved in brain development/damage, namely S100B, changes due to HoP...
February 5, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28152673/effects-of-adding-a-weekly-eccentric-overload-training-session-on-strength-and-athletic-performance-in-team-handball-players
#13
Rafael Sabido, Jose Luis HernáNdez-Davó, Javier Botella, Angel Navarro, Julio Tous-Fajardo
To investigate the influence of adding a weekly eccentric-overload training (EOT) session in several athletic performance's tests, 18 team-handball players were assigned either to an EOT (n = 11) or a Control (n = 7) group. Both groups continued to perform the same habitual strength training, but the EOT group added one session/week during a 7-week training programme consisting of four sets of eight repetitions for the bilateral half-squat and unilateral lunge exercises. The test battery included handball throwing velocity, maximum dynamic strength (1RM), countermovement jump (CMJ), 20 m sprint, triple hop for distance, and eccentric/concentric power in both the half-squat and lunge exercises...
February 2, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28146394/functional-performance-among-active-female-soccer-players-after-unilateral-primary-anterior-cruciate-ligament-reconstruction-compared-with-knee-healthy-controls
#14
Anne Fältström, Martin Hägglund, Joanna Kvist
BACKGROUND: Good functional performance with limb symmetry is believed to be important to minimize the risk of injury after a return to pivoting and contact sports after anterior cruciate ligament reconstruction (ACLR). PURPOSE: This study aimed to investigate any side-to-side limb differences in functional performance and movement asymmetries in female soccer players with a primary unilateral anterior cruciate ligament (ACL)-reconstructed knee and to compare these players with knee-healthy controls from the same soccer teams...
February 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28143819/performing-international-outreach-phun-week-in-an-australian-primary-school
#15
Patricia A Halpin
Physiology Understanding (PhUn) Week is an annual science outreach program sponsored by the American Physiological Society in which K-12 students learn about physiology through meeting a physiologist and performing an experiment. Performing PhUn Week at an Australian private primary school during a family vacation in 2014 enabled me to receive a fellowship to return the following year for further implementation. To set up the outreach, I contacted the assistant principal of a public primary school, and she connected me with the physical education (PE) teacher...
March 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/28125899/do-patients-failing-return-to-activity-criteria-at-6-months-after-anterior-cruciate-ligament-reconstruction-continue-demonstrating-deficits-at-2-years
#16
Zakariya Nawasreh, David Logerstedt, Kathleen Cummer, Michael J Axe, May Arna Risberg, Lynn Snyder-Mackler
BACKGROUND: The variability in outcomes after anterior cruciate ligament reconstruction (ACLR) might be related to the criteria that are used to determine athletes' readiness to return to their preinjury activity level. A battery of return-to-activity criteria (RTAC) that emphasize normal knee function and movement symmetry has been instituted to quantitatively determine athletes' readiness to return to preinjury activities. PURPOSE: To investigate performance-based and patient-reported measures at 12 and 24 months after ACLR between patients who passed or failed RTAC at 6 months after ACLR...
December 1, 2016: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28087694/iso-%C3%AE-acids-bitter-components-of-beer-prevent-inflammation-and-cognitive-decline-induced-in-a-mouse-model-of-alzheimer-s-disease
#17
Yasuhisa Ano, Atsushi Dhata, Yoshimasa Taniguchi, Ayaka Hoshi, Kazuyuki Uchida, Akihiko Takashima, Hiroyuki Nakayama
Alongside the rapid growth in aging populations worldwide, prevention and therapy for age-related memory decline and dementia are in great demand to maintain a long healthy life. Here we found that iso-α-acids, hop-derived bitter compounds in beer, enhance microglial phagocytosis and suppress inflammation via activation of the peroxisome proliferator-activated receptor (PPAR-γ). In normal mice, oral administration of iso-α-acids led to a significant increase both in CD11b and CD206 double-positive anti-inflammatory type microglia (P<0...
January 13, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28081034/the-effects-of-the-removal-of-electronic-devices-for-48-hours-on-sleep-in-elite-judo-athletes
#18
Ian C Dunican, David T Martin, Shona L Halson, Reid Reale, Brian Dawson, John Caldwell, Maddison J Jones, Peter R Eastwood
OBJECTIVE: This study examined the effects of the removal of electronic devices (i.e., smartphones, etc.) for 48 hours on sleep quality and next-day athletic and cognitive performance in elite Judo athletes. PARTICIPANTS: Over 6 days and nights, 23 eliteAustralian Judo athletes were monitored while attending a camp at the Australian Institute of Sport (AIS). In 14 athletes all electronic devices were removed on days 3 & 4 (i.e. for 48 hours: the 'device-restricted group') while 9 were permitted to use their devices throughout the camp (the 'control group')...
January 4, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28072630/bracing-of-the-reconstructed-and-osteoarthritic-knee-during-high-dynamic-load-tasks
#19
Harvi F Hart, Kay M Crossley, Natalie J Collins, David C Ackland
PURPOSE: Lateral compartment osteoarthritis accompanied by abnormal knee biomechanics are frequently reported in individuals with knee osteoarthritis after anterior cruciate ligament reconstruction (ACLR). The aim of this study was to evaluate changes in knee biomechanics produced by an adjusted and unadjusted varus knee brace during high dynamic loading activities in individuals with lateral knee osteoarthritis after ACLR and valgus malalignment. METHODS: Nineteen participants who had undergone ACLR 5 to 20 years previously and had symptomatic and radiographic lateral knee osteoarthritis with valgus malalignment were assessed...
January 9, 2017: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/28070922/an-open-label-randomized-control-trial-of-hopping-and-jumping-training-versus-sensorimotor-rehabilitation-programme-on-postural-capacities-in-individuals-with-intellectual-disabilities
#20
Rihab Borji, Sonia Sahli, Rym Baccouch, Rabeb Laatar, Hiba Kachouri, Haithem Rebai
BACKGROUND: This study aimed to compare the effectiveness of a hopping and jumping training programme (HJP) versus a sensorimotor rehabilitation programme (SRP) on postural performances in children with intellectual disability. METHODS: Three groups of children with intellectual disability participated in the study: the HJP group, the SRP group and a control group. Postural capacities were tested with the Berg Balance Scale (BBS) and the Tinetti tests. The HJP and the SRP groups participated in the training programmes for eight weeks...
January 10, 2017: Journal of Applied Research in Intellectual Disabilities: JARID
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