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https://www.readbyqxmd.com/read/29775379/decision-to-return-to-sport-participation-after-anterior-cruciate-ligament-reconstruction-part-ii-self-reported-and-functional-performance-outcomes
#1
Jennifer L Werner, Julie P Burland, Carl G Mattacola, Jenny Toonstra, Robert A English, Jennifer S Howard
CONTEXT:   Anterior cruciate ligament (ACL) reconstruction (ACLR) is the most commonly used method for helping athletes regain function and return to preinjury activity levels after ACL injury. Outcomes after ACLR have suggested that athletes return to a level of function that would support a return to sport participation; however, in a recent meta-analysis, pooled return rates were only 55%. It is unclear whether this discrepancy is a result of functional impairments. OBJECTIVE:   To compare patient-reported outcomes (PROs), dynamic balance, dynamic functional performance, strength, and muscular endurance in athletes who have returned to sport (RTS) and athletes who have not returned to sport (NRTS) after ACLR...
May 18, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29769834/continuous-knee-cooling-affects-functional-hop-performance-a-randomized-controlled-trial
#2
Bruno Tassignon, Ben Serrien, Kevin De Pauw, Jean-Pierre Baeyens, Romain Meeusen
Cryotherapy is widely used in sports and rehabilitation to aid recovery and injury management. The purpose was to examine if a low temperature computer controlled continuous knee cooling protocol (10°C) for one hour and a moderate continuous knee cooling protocol (18°C) for one hour affected neuromuscular activity and functional performance tests. We used a randomized controlled study design. Twenty healthy male subjects (age = 24 ± 3 years) were included and randomized into 2 groups (10°C and 18°C). On day one, participants performed a maximal voluntary contraction of the quadriceps (MVC), single leg hop for distance (SLHD), and crossover hop for time (COHT) with both legs before and after cooling of their right leg...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29768094/lower-limb-stiffness-testing-in-athletic-performance-a-critical-review
#3
Sean J Maloney, Iain M Fletcher
Stiffness describes the resistance of a body to deformation. In regard to athletic performance, a stiffer leg-spring would be expected to augment performance by increasing utilisation of elastic energy. Two-dimensional spring-mass and torsional spring models can be applied to model whole-body (vertical and/or leg stiffness) and joint stiffness. Various tasks have been used to characterise stiffness, including hopping, gait, jumping, sledge ergometry and change of direction tasks. Appropriate levels of reliability have been reported in most tasks, although they vary between investigations...
May 16, 2018: Sports Biomechanics
https://www.readbyqxmd.com/read/29756854/hopping-in-the-crowd-to-unveil-network-topology
#4
Malbor Asllani, Timoteo Carletti, Francesca Di Patti, Duccio Fanelli, Francesco Piazza
We introduce a nonlinear operator to model diffusion on a complex undirected network under crowded conditions. We show that the asymptotic distribution of diffusing agents is a nonlinear function of the nodes' degree and saturates to a constant value for sufficiently large connectivities, at variance with standard diffusion in the absence of excluded-volume effects. Building on this observation, we define and solve an inverse problem, aimed at reconstructing the a priori unknown connectivity distribution. The method gathers all the necessary information by repeating a limited number of independent measurements of the asymptotic density at a single node, which can be chosen randomly...
April 13, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29748510/toxicity-of-selected-acaricides-to-honey-bees-apis-mellifera-and-varroa-varroa-destructor-anderson-and-trueman-and-their-use-in-controlling-varroa-within-honey-bee-colonies
#5
Aleš Gregorc, Mohamed Alburaki, Blair Sampson, Patricia R Knight, John Adamczyk
The efficacies of various acaricides in order to control a parasitic mite, the Varroa mite, Varroa destructor , of honey bees, were measured in two different settings, namely, in laboratory caged honey bees and in queen-right honey bee colonies. The Varroa infestation levels before, during, and after the acaricide treatments were determined in two ways, namely: (1) using the sugar shake protocol to count mites on bees and (2) directly counting the dead mites on the hive bottom inserts. The acaricides that were evaluated were coumaphos, tau-fluvalinate, amitraz, thymol, and natural plant compounds (hop acids), which were the active ingredients...
May 10, 2018: Insects
https://www.readbyqxmd.com/read/29721458/tripled-semitendinosus-with-single-harvesting-is-as-effective-but-less-invasive-compared-to-standard-gracilis-semitendinosus-harvesting
#6
Luca Drocco, Daniele Camazzola, Riccardo Ferracini, Sebastien Lustig, Laura Ravera, Eugenio Graziano, Alessandro Massè, Alessandro Bistolfi
Introduction: The anterior cruciate ligament (ACL) reconstruction with pes anserinus tendons has been increasingly used throughout the last years. Although less invasive compared to other autologous grafts, a reduction of internal rotation and flexion strength after gracilis and semitendinosus harvesting has been reported. Harvesting one tendon instead of two from the pes anserinus can reduce the deficit of the knee flexor strength and improve the functional recover without weakening the reconstructed ligament...
October 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/29721339/the-effect-of-therapeutic-exercise-on-long-standing-adductor-related-groin-pain-in-athletes-modified-h%C3%A3-lmich-protocol
#7
Abbas Yousefzadeh, Azadeh Shadmehr, Gholam Reza Olyaei, Nasrin Naseri, Zahra Khazaeipour
Objective: The Hölmich protocol in therapeutic exercise is the most appropriate method for the treatment of long-standing adductor-related groin pain (LSAGP). Herein, we evaluated a modified Hölmich protocol to resolve the possible limitations intrinsic to the Hölmich protocol in terms of the rate of return to sport and the recovery period for athletes with LSAGP. Design: The study followed a single-blind, before/after study design, where 15 athletes with LSAGP (mean age = 26...
2018: Rehabilitation Research and Practice
https://www.readbyqxmd.com/read/29720478/criteria-for-return-for-running-after-anterior-cruciate-ligament-reconstruction-a-scoping-review
#8
REVIEW
Alexandre J M Rambaud, Clare L Ardern, Patricia Thoreux, Jean-Philippe Regnaux, Pascal Edouard
OBJECTIVE: To describe the criteria used to guide clinical decision-making regarding when a patient is ready to return to running (RTR) after ACL reconstruction. DESIGN: Scoping review. DATA SOURCES: The MEDLINE (PubMed), EMBASE, Web of Science, PEDro, SPORTDiscus and Cochrane Library electronic databases. We also screened the reference lists of included studies and conducted forward citation tracking. ELIGIBILITY CRITERIA FOR SELECTING STUDIES: Reported at least one criterion for permitting adult patients with primary ACL reconstruction to commence running postoperatively...
May 2, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29706401/quasi-targeted-analysis-of-halogenated-organic-pollutants-in-fly-ash-soil-ambient-air-and-flue-gas-using-gas-chromatography-high-resolution-mass-spectrometry-with-isotopologue-distribution-comparison-and-predicted-retention-time-alignment
#9
Caiming Tang, Jianhua Tan
Identifying environmental pollutants, particularly emerging and new pollutants, in various matrices is a prerequisite for further research involving these pollutants. In this study, we developed a quasi-targeted analysis method to identify halogenated organic pollutants (HOPs) by joint application of gas chromatography-double focus magnetic-sector high resolution mass spectrometry (GC-DFS-HRMS), isotopologue distribution comparison and predicted retention time (PRT) alignment. Structures of a variety of unreported/scarcely reported HOPs were conceived and sketched, and then, multiple isotopologue ions of individual HOPs were detected by GC-DFS-HRMS in multiple ion detection mode...
April 24, 2018: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29705521/vertical-stiffness-and-balance-control-of-two-legged-hopping-in-place-in-children-with-and-without-down-syndrome
#10
Matthew Beerse, Jianhua Wu
BACKGROUND: Children with Down syndrome (DS) are known for their reduced balance control, and typically take longer to develop motor skills and display less coordinated movement patterns. Hopping in-place is a gross motor skill requiring whole-body vertical stiffness and horizontal movement control, particularly when attempting to modify hopping frequency. However, there is a lack of knowledge of the hopping capacity of children with DS. RESEARCH QUESTION: The purpose of this study was to assess the ability of children with DS aged 5-11 years old to continuously hop in-place on two legs and compare their biomechanical patterns to those of typically developing (TD) children...
April 22, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29684789/bipedal-hopping-timed-to-a-metronome-to-detect-impairments-in-anticipatory-motor-control-in-people-with-mild-multiple-sclerosis
#11
Megan C Kirkland, Alice Chen, Matthew B Downer, Brett J Holloway, Elizabeth M Wallack, Evan J Lockyer, Natasha C M Buckle, Courtney L Abbott, Michelle Ploughman
BACKGROUND: People with mild multiple sclerosis (MS) often report subtle deficits in balance and cognition but display no measurable impairment on clinical assessments. We examined whether hopping to a metronome beat had the potential to detect anticipatory motor control deficits among people with mild MS (Expanded Disability Status Scale ≤ 3.5). METHODS: Participants with MS (n = 13), matched controls (n = 9), and elderly subjects (n = 13) completed tests of cognition (Montreal Cognitive Assessment (MoCA)) and motor performance (Timed 25 Foot Walk Test (T25FWT))...
April 13, 2018: Clinical Biomechanics
https://www.readbyqxmd.com/read/29680252/demonstration-of-safety-and-feasibility-of-hydrogel-marking-of-the-pancreas-duodenum-interface-for-image-guided-radiation-therapy-igrt-in-a-porcine-model-implications-in-igrt-for-pancreatic-cancer-patients
#12
Avani D Rao, Eun Ji Shin, Sarah E Beck, Caroline Garrett, Seong-Hun Kim, Nam Ju Lee, Eleni Liapi, John Wong, Joseph Herman, Amol Narang, Kai Ding
PURPOSE: To test the feasibility and safety of injecting a high-contrast hydrogel marker at the head of the pancreas (HOP) and duodenum interface and assesses the marker visibility on cone beam computed tomography (CBCT) to localize this important boundary during image guided radiation therapy in a porcine model. METHODS AND MATERIALS: This was a 2-stage study. The feasibility/visibility stage evaluated the ability to place the hydrogel using endoscopic ultrasound guidance on 8 swine (4 euthanized at post-injection day 8, 4 euthanized at post-injection day 22) and assessed the quality of visibility of the marked location on CBCT in the longer-surviving group...
March 2, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29660632/female-pfp-patients-present-alterations-in-eccentric-muscle-activity-but-not-the-temporal-order-of-activation-of-the-vastus-lateralis-muscle-during-the-single-leg-triple-hop-test
#13
Marcelo Martins Kalytczak, Paulo Roberto Garcia Lucareli, Amir Curcio Dos Reis, André Serra Bley, Daniela Aparecida Biasotto-Gonzalez, João Carlos Ferrari Correa, Fabiano Politti
This study aimed to compare the concentric and eccentric activity and the temporal order of peak activity of the hip and knee muscles between women with patellofemoral pain (PFP) and healthy women during the single leg triple hop test (SLTHT). Electromyographic (EMG) and Kinematic data were collected from 14 healthy women (CG) and 14 women diagnosed with PFP (PFG) during a single session of the single leg triple hop test. Integral surface electromyography (iEMG) data of the hip and knee muscles in eccentric and concentric phases and the length of time that each muscle needed to reach the maximal peak of muscle activity were calculated...
April 7, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29655693/molecular-modeling-and-in-vitro-approaches-towards-cholinesterase-inhibitory-effect-of-some-natural-xanthohumol-naringenin-and-acyl-phloroglucinol-derivatives
#14
Ilkay Erdogan Orhan, Dariusz Jedrejek, F Sezer Senol, Ramin Ekhteiari Salmas, Serdar Durdagi, Iwona Kowalska, Lukasz Pecio, Wieslaw Oleszek
BACKGROUND: Many natural products, particularly phenolic compounds, have been reported to have a strong inhibition against acetylcholinesterase (AChE) and butyrylcholinesterase (BChE), the key enzymes in the pathology of Alzheimer's disease (AD). HYPOTHESIS: Therefore, we hypothesized that some xanthahumol, naringenin, and acyl phloroglucinol derivatives (1-14) isolated from Humulus lupulus L. (hops) may have an inhibitory potential against AChE and BChE. METHODS: Inhibitory potential of compounds 1-14 were tested against AChE and BChE using ELISA microtiter assay...
March 15, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
https://www.readbyqxmd.com/read/29628406/eccentric-training-combined-to-neuromuscular-electrical-stimulation-is-not-superior-to-eccentric-training-alone-for-quadriceps-strengthening-in-healthy-subjects-a-randomized-controlled-trial
#15
Claudia Ferreira Gomes da Silva, Felipe Xavier de Lima E Silva, Karoline Baptista Vianna, Gabriel Dos Santos Oliveira, Marco Aurélio Vaz, Bruno Manfredini Baroni
BACKGROUND: Both eccentric training and neuromuscular electrical stimulation (NMES) are used for quadriceps strengthening. However, the effects of these interventions combined are unclear. OBJECTIVES: To compare the effects of eccentric training combined to NMES and eccentric training alone on structure, strength, and functional performance of knee extensor muscles of healthy subjects. METHODS: This is a three-arm, single-blinded, randomized controlled trial...
March 28, 2018: Brazilian Journal of Physical Therapy
https://www.readbyqxmd.com/read/29623686/effect-of-a-montmorillonite-bentonite-based-product-on-faecal-parameters-of-horses
#16
K Gerstner, A Liesegang
Free faecal water (fluid excreted separate from normal faeces) is a common problem of unknown origin in horses. Multifactorial causes are assumed. This study assessed the effect of a commercial product (EMP) sold to help support intestinal health of horses, particularly regarding the occurrence of free faecal water. The hypothesis was that water-binding capacity and microbial activity are improved in the large intestine of horses fed EMP. EMP contained montmorillonite-bentonite, whey and extracts from hop and absinthium...
April 2018: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29623457/prediction-of-respiratory-function-in-patients-with-severe-scoliosis-on-the-basis-of-the-novel-individualized-spino-pelvic-index
#17
Zhi-Hui Zhao, Hong-da Bao, Chang-Chun Tseng, Ze-Zhang Zhu, Yong Qiu, Zhen Liu
OBJECTIVE: Our study aimed to evaluate the pulmonary function of patients with severe scoliosis after correcting standing height with spino-pelvic index (SPI). METHODS: Inclusion criteria: (1) with a coronal Cobb angle of more than 90°; (2) diagnosed as congenital (CS) or idiopathic scoliosis (IS); (3) aged between ten and 20 years; (4) with pulmonary function test (PFT) at the primary consultation. Patients with previous surgical intervention, with angular kyphosis, and with neuromuscular disease were excluded...
April 5, 2018: International Orthopaedics
https://www.readbyqxmd.com/read/29620577/methods-of-identifying-limb-dominance-in-adolescent-female-basketball-players-implications-for-clinical-and-biomechanical-research
#18
Colleen R Mulrey, Sandra J Shultz, Kevin R Ford, Anh-Dung Nguyen, Jeffrey B Taylor
OBJECTIVE: To identify relationships between self-reported limb preferences and performance measures for determining limb dominance in adolescent female basketball players. DESIGN: Cross-sectional cohort study. PARTICIPANTS: Forty adolescent female basketball players. INDEPENDENT VARIABLES AND MAIN OUTCOME MEASURES: Participants provided self-reported preferred kicking and jumping limbs, then completed 3 trials of a single-limb countermovement hop (HOPVER) and unilateral triple hop for distance (HOPHOR) on each limb...
March 29, 2018: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29602303/hop-distance-symmetry-does-not-indicate-normal-landing-biomechanics-in-adolescent-athletes-with-recent-anterior-cruciate-ligament-reconstruction
#19
Tishya A L Wren, Nicole M Mueske, Christopher H Brophy, J Lee Pace, Mia J Katzel, Bianca R Edison, Curtis D VandenBerg, Tracy L Zaslow
Study Design Retrospective cohort. Background Return to sport (RTS) protocols after anterior cruciate ligament reconstruction (ACLR) often include assessment of hop distance symmetry. However, it is unclear if movement deficits are present regardless of hop symmetry. Objectives To assess biomechanics and symmetry of adolescent athletes following ACLR during a single leg hop for distance. Methods Forty-six patients with ACLR (5-12 months post-surgery; 27 female; age 15.6, SD 1.7 years) were classified as asymmetric (operative limb hop distance <90% of non-operative limb; n=17) or symmetric (n=29)...
March 30, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29602302/assessing-outcomes-in-people-having-chronic-ankle-instability-the-ability-of-functional-performance-tests-to-measure-deficits-in-physical-function-and-perceived-instability
#20
Leif P Madsen, Emily A Hall, Carrie L Docherty
Study Design Laboratory base, cross-sectional study. Background Functional performance tests (FPTs) assess short bouts of unilateral hops for either distance or speed. More research is needed to identify specific FPTs that are useful for measuring asymmetry outcomes related to functional performance and perceived instability deficits in subjects with chronic ankle instability (CAI). Objectives To identify FPTs that are sensitive to subjective and objective deficits associated with CAI. Methods Twenty-four subjects with unilateral CAI (10 males, 14 females; 20...
March 30, 2018: Journal of Orthopaedic and Sports Physical Therapy
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