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https://www.readbyqxmd.com/read/27904796/functional-hop-tests-and-tuck-jump-assessment-scores-between-female-division-i-collegiate-athletes-participating-in-high-versus-low-acl-injury-prone-sports-a-cross-sectional-analysis
#1
Philipp Hoog, Meghan Warren, Craig A Smith, Nicole J Chimera
BACKGROUND: Although functional tests including the single leg hop (SLH), triple hop (TH), cross over hop (COH) for distance, and the tuck jump assessment (TJA) are used for return to play (RTP) criteria for post anterior cruciate ligament (ACL) injury, sport-specific baseline measurements are limited. PURPOSE: The purpose of this study was to examine differences in SLH, TH, and COH distance and limb symmetry index (LSI), as well as total scores, number of jumps, and individual flaws of the TJA in 97 injury-free Division I (DI) collegiate female student athletes participating in ACL injury prone vs...
December 2016: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/27893474/hypertrophy-and-explosive-reactive-functioning-in-sedentary-men-following-10-weeks-of-whole-body-vibration
#2
Jens Ebing, Ulf Gast, Christoph Hauptmann, Dieter Felsenberg, Daniel L Belavý
The objective of this study was to determine the impact of vertical (Power-plate; POW) and side-alternating (Galileo; GAL) whole-body vibration exercise on muscle mass and lower-limb neuromuscular function. Forty-three sedentary male subjects (18-30yr) randomized into three groups underwent two upper-body exercise sessions per week for 10 weeks. Two groups of subjects underwent additional squat exercises on the GAL (N=15) or POW (N=14) devices. The third group was control. On magnetic resonance imaging, volume of the thigh muscles was measured...
November 16, 2016: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/27869529/low-fundamental-movement-skill-proficiency-is-associated-with-high-bmi-and-body-fatness-in-girls-but-not-boys-aged-6-11-years-old
#3
Michael J Duncan, Elizabeth Bryant, David Stodden
This study examined differences in children's body mass index (BMI) and body fatness (BF%) as a function of gender and fundamental movement skill (FMS) proficiency. Following ethics approval and parental consent, 248, 6-11 year-old children (112 boys, 136 girls) underwent assessment of 7 FMS: sprint run, side gallop, hop, kick, catch, throw and vertical jump. FMS tertiles ("high", "medium" or "low" FMS) were created based on the summed components of the FMS. Skinfold measures were used to calculate BF%. Physical activity (PA) was assessed using pedometry and maturation predicted using anthropometry...
November 21, 2016: Journal of Sports Sciences
https://www.readbyqxmd.com/read/27837221/femoral-avulsion-fracture-of-acl-proximal-attachment-in-male-scuba-diver-case-report-and-review-of-the-literature
#4
Sebastian Zabierek, Krzysztof Nowak, Marcin Domzalski
Femoral ACL avulsion fractures were not well described in the literature, and there were only several reports describing mostly immature patients. A case of 50-year-old man with ACL femoral attachment avulsion fracture after pivoting knee injury during skiing was presented. The bony attachment was reduced and fixed arthroscopically with screws. Four months after surgery, patient was allowed to return to full sport activity with full range of motion. He was able to perform a one-leg-hop test without limitation, and the strength of quadriceps muscle was comparable to contralateral side...
November 11, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27834590/clinical-effects-of-dry-needling-among-asymptomatic-individuals-with-hamstring-tightness-a-randomized-controlled-trial
#5
Kathleen Geist, Claire Bradley, Alan Hofman, Rob Koester, Fenella Roche, Annalise Shields, Elizabeth Frierson, Ainsley Rossi, Marie Johanson
STUDY DESIGN: Randomized controlled trial. OBJECTIVES: The aim of this study was to determine the effects of dry needling on hamstring extensibility and functional performance tests among asymptomatic individuals with hamstring muscle tightness. BACKGROUND: Dry needling has been shown to increase range of motion in the upper quarter and may have similar effects in the lower quarter. METHODS: Twenty-seven subjects with hamstring extensibility deficits were randomly assigned to side of treatment (dominant or non-dominant) and group (blunt needling or dry needling)...
November 11, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27821609/structure-and-mechanism-of-the-atp-synthase-membrane-motor-inferred-from-quantitative-integrative-modeling
#6
Vanessa Leone, José D Faraldo-Gómez
Two subunits within the transmembrane domain of the ATP synthase-the c-ring and subunit a-energize the production of 90% of cellular ATP by transducing an electrochemical gradient of H(+) or Na(+) into rotational motion. The nature of this turbine-like energy conversion mechanism has been elusive for decades, owing to the lack of definitive structural information on subunit a or its c-ring interface. In a recent breakthrough, several structures of this complex were resolved by cryo-electron microscopy (cryo-EM), but the modest resolution of the data has led to divergent interpretations...
December 2016: Journal of General Physiology
https://www.readbyqxmd.com/read/27816530/structural-basis-of-transport-function-in-major-facilitator-superfamily-protein-from-trichoderma-harzianum
#7
Nitika Chaudhary, Padmani Sandhu, Mushtaq Ahmed, Yusuf Akhter
Trichothecenes are the sesquiterpenes secreted by Trichoderma spp. residing in the rhizosphere. These compounds have been reported to act as plant growth promoters and bio-control agents. The structural knowledge for the transporter proteins of their efflux remained limited. In this study, three-dimensional structure of Thmfs1 protein, a trichothecene transporter from Trichoderma harzianum, was homology modelled and further Molecular Dynamics(MD) simulations were used to decipher its mechanism. Fourteen transmembrane helices of Thmfs1 protein are observed contributing to an inward-open conformation...
November 2, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27802796/patients-with-chondrolabral-pathology-have-bilateral-functional-impairments-12-to-24-months-after-unilateral-hip-arthroscopy-a-cross-sectional-study
#8
Joanne L Kemp, May Arna Risberg, Anthony G Schache, Michael Makdissi, Michael G Pritchard, Kay M Crossley
Study Design Cross-sectional study. Background Functional task performance in patients with chondrolabral pathology following hip arthroscopy is unknown. Objectives To investigate in people with chondrolabral pathology following hip arthroscopy (1) the bilateral differences in functional task performance compared to controls, (2) the association of hip muscle strength with functional task performance, and (3) the association of functional task performance scores with good outcome, as measured by International Hip Outcome Tool score...
November 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27799670/correlation-between-hip-function-and-knee-kinematics-evaluated-by-three-dimensional-motion-analysis-during-lateral-and-medial-side-hopping
#9
Hiromitsu Itoh, Kohei Takiguchi, Yohei Shibata, Satoshi Okubo, Shinichi Yoshiya, Ryosuke Kuroda
[Purpose] Kinematic and kinetic characteristics of the limb during side-hopping and hip/knee interaction during this motion have not been clarified. The purposes of this study were to examine the biomechanical parameters of the knee during side hop and analyze its relationship with clinical measurements of hip function. [Subjects and Methods] Eleven male college rugby players were included. A three-dimensional motion analysis system was used to assess motion characteristics of the knee during side hop. In addition, hip range of motion and muscle strength were evaluated...
September 2016: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/27756572/musculoskeletal-modeling-of-human-lower-limb-during-normal-walking-one-legged-forward-hopping-and-side-jumping-comparison-of-measured-emg-and-predicted-muscle-activity-patterns
#10
A D Wibawa, N Verdonschot, J P K Halbertsma, J G M Burgerhof, R L Diercks, G J Verkerke
This study focused on comparing muscle activities predicted by the Musculoskeletal Modeling System with EMG from ten healthy subjects who performed normal walking, one-legged forward hopping and side jumping. Eight EMG electrodes measured the activity of eight right leg muscles. Specific thresholds per muscle were applied on the EMG prior comparison. These thresholds were determined by equalizing the duration of EMG to AMS muscle activity. Three graph variables, number of onsets, offsets and hills were used to quantify the level of agreement by using Cohen׳s kappa analysis...
October 6, 2016: Journal of Biomechanics
https://www.readbyqxmd.com/read/27676865/functional-tests-can-they-help-in-the-decision-to-return-to-sports-after-anterior-cruciate-ligament-example-with-hop-tests
#11
Alexandre Rambaud, Pierre Samozino, Pascal Edouard
OBJECTIVE: After anterior cruciate ligament (ACL) tear, the ACL reconstruction (ACLR) is the standard treatment to return to pivots/contacts sports. The goal of rehabilitation programs is to guide the functional recovery and the safe return to sport without additional knee injury or other injuries. Functional tests, like Hop tests and their side to-side difference index [limb symmetry index (LSI)], are commonly used following ACLR to help return to sport decision making. However, the most commonly used criterion to return to sport is the postoperative time: return to light activities (RtlA) at 3 or 4 month mark and return to sport with contacts and side-cuttings (RtS) between 6 and 9 month mark...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27676864/interest-of-a-biomechanical-analysis-of-running-on-a-treadmill-coupled-with-functional-testing-and-isokinetic-evaluation-during-return-to-sport-after-anterior-cruciate-ligament-reconstruction
#12
Alexandre Rambaud, Bertrand Semay, Jean-Benoit Morin, Rémi Phillipot, Pierre Samozino, Pascal Edouard
OBJECTIVE: A criterion of the anterior cruciate ligament reconstruction (ACLR) success is the return to sport at the same level as before surgery. Return to sport (RtS) decision seems to be a key element in this success: if too early RtS exposes to risk of injury, too late RtS influences the motivation to return to the same level. Functional tests (Hop Tests) and isokinetic assessments (Isok Tests) are usually performed to guide this decision. However, a precise and objective biomechanical analysis of running pattern would be more similarly to the sport activity...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27665093/an-anterior-cruciate-ligament-injury-does-not-affect-the-neuromuscular-function-of-the-non-injured-leg-except-for-dynamic-balance-and-voluntary-quadriceps-activation
#13
Tjerk Zult, Alli Gokeler, Jos J A M van Raay, Reinoud W Brouwer, Inge Zijdewind, Tibor Hortobágyi
PURPOSE: The function of the anterior cruciate ligament (ACL) patients' non-injured leg is relevant in light of the high incidence of secondary ACL injuries on the contralateral side. However, the non-injured leg's function has only been examined for a selected number of neuromuscular outcomes and often without appropriate control groups. We measured a broad array of neuromuscular functions between legs of ACL patients and compared outcomes to age, sex, and physical activity matched controls...
September 24, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/27634270/electrolyte-gated-charge-transport-in-molecularly-linked-gold-nanoparticle-films-the-transition-from-a-mott-insulator-to-an-exotic-metal-with-strong-electron-electron-interactions
#14
M Tie, A-A Dhirani
Strong electron-electron interactions experienced by electrons as they delocalize are widely believed to play a key role in a range of remarkable phenomena such as high Tc superconductivity, colossal magnetoresistance, and others. Strongly correlated electrons are often described by the Hubbard model, which is the simplest description of a correlated system and captures important gross features of phase diagrams of strongly correlated materials. However, open challenges in this field include experimentally mapping correlated electron phenomena beyond those captured by the Hubbard model, and extending the model accordingly...
September 14, 2016: Journal of Chemical Physics
https://www.readbyqxmd.com/read/27632874/a-randomized-controlled-trial-comparing-rehabilitation-efficacy-in-chronic-ankle-instability
#15
Cynthia J Wright, Shelley W Linens, Mary Spencer Cain
CONTEXT: There is minimal patient-oriented evidence regarding the effectiveness of interventions targeted to reduce symptoms associated with chronic ankle instability (CAI). Additionally, clinicians aiming to prioritize care by implementing only the most effective components of a rehabilitative program have very little evidence on comparative efficacy. OBJECTIVE: To assess the comparative efficacy of two common ankle rehabilitation techniques [wobble board (WB) balance training and ankle strengthening using resistance tubing (RT)] using patient-oriented outcomes...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27632846/effects-of-a-four-week-biomechanical-ankle-platform-system-protocol-on-balance-in-high-school-athletes-with-chronic-ankle-instability
#16
Mary Spencer Cain, Stacy Watt Garceau, Shelley W Linens
CONTEXT: Chronic Ankle Instability (CAI) describes the residual symptoms present after repetitive ankle sprains. Current rehabilitation programs in the high school population focus on a multi-station approach or general lower extremity injury prevention program. Specific rehabilitation techniques for CAI have not been established. OBJECTIVE: To determine the effectiveness of a 4-week Biomechanical Ankle Platform System (BAPS) Board protocol on balance of high school athletes with CAI...
August 24, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27626836/muscle-activation-during-landing-before-and-after-fatigue-in-individuals-with-or-without-chronic-ankle-instability
#17
Kathryn A Webster, Brian G Pietrosimone, Phillip A Gribble
CONTEXT: Ankle instability is a common condition in physically active individuals. It often occurs during a jump landing or lateral motion, particularly when participants are fatigued. OBJECTIVE: To compare muscle activation during a lateral hop prefatigue and postfatigue in individuals with or without chronic ankle instability (CAI). DESIGN: Cross-sectional study. SETTING: Sports medicine research laboratory. PATIENTS OR OTHER PARTICIPANTS: A total of 32 physically active participants volunteered for the study...
August 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27620862/five-week-sensory-motor-training-program-improves-functional-performance-and-postural-control-in-young-male-soccer-players-a-blind-randomized-clinical-trial
#18
Lucas Rafael Heleno, Rubens A da Silva, Leonardo Shigaki, Cynthia Gobbi Alves Araújo, Cristiane Regina Coelho Candido, Victor Hugo Alves Okazaki, Ariobaldo Frisseli, Christiane de S Guerino Macedo
: Sensory motor training programs are used in the rehabilitation and prevention of injuries among soccer players. Inconsistencies are found in the literature regarding the duration of the protocols and the exercises and equipment used. OBJECTIVE: To evaluate the benefits of a five-week sensory motor training program on the functional performance and postural control of young soccer players. METHODS: The study sample comprised 22 young male soccer players who were evaluated using: the Figure-of-Eight Test (F8), Side Hop Test (SHT), Star Excursion Balance Test (SEBT), and a force platform...
May 10, 2016: Physical Therapy in Sport
https://www.readbyqxmd.com/read/27529435/the-effect-of-holder-pasteurization-on-activin-a-levels-in-human-milk
#19
Chiara Peila, Alessandra Coscia, Enrico Bertino, Giovanni Li Volti, Fabio Galvano, Ignazio Barbagallo, Gerard H A Visser, Diego Gazzolo
INTRODUCTION: There is evidence that mother's own milk is the best nutrient in terms of multiorgan protection and infection prevention. However, when maternal milk is scarce, the solution can be represented by donor milk (DM), which requires specific storage procedures such as Holder Pasteurization (HoP). HoP is not free from side effects since it is widely known that it causes qualitative/quantitative changes in milk composition, particularly in the protein content. Therefore, the aim of this study is to investigate the effects of HoP on Activin A, a neurobiomarker known to play an important role in the development and protection of the central nervous system...
August 16, 2016: Breastfeeding Medicine: the Official Journal of the Academy of Breastfeeding Medicine
https://www.readbyqxmd.com/read/27466222/irradiated-hamstring-tendon-allograft-versus-autograft-for-anatomic-double-bundle-anterior-cruciate-ligament-reconstruction-midterm-clinical-outcomes
#20
Shaoqi Tian, Bin Wang, Lun Liu, Yuanhe Wang, Chengzhi Ha, Qicai Li, Xu Yang, Kang Sun
BACKGROUND: Most studies on grafts for anterior cruciate ligament (ACL) reconstruction (ACLR) have been of autografts or nonirradiated allografts with a single-bundle (SB) technique. Outcome reports evaluating anatomic double-bundle (DB) ACLR with a hamstring tendon autograft versus irradiated allograft are rare. PURPOSE: To compare the clinical outcomes of arthroscopic anatomic DB ACLR with a hamstring tendon autograft versus irradiated allograft. STUDY DESIGN: Randomized controlled trial; Level of evidence, 2...
October 2016: American Journal of Sports Medicine
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