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https://www.readbyqxmd.com/read/29780846/epidemiology-of-hip-and-groin-injuries-in-collegiate-athletes-in-the-united-states
#1
Yehuda E Kerbel, Christopher M Smith, John P Prodromo, Michael I Nzeogu, Mary K Mulcahey
Background: Hip and groin pain is a common complaint among athletes. Few studies have examined the epidemiology of hip and groin injuries in collegiate athletes across multiple sports. Purpose: To describe the rates, mechanisms, sex-based differences, and severity of hip/groin injuries across 25 collegiate sports. Study Design: Descriptive epidemiology study. Methods: Data from the 2009-2010 through 2013-2014 academic years were obtained from the National Collegiate Athletic Association Injury Surveillance Program (NCAA ISP)...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29776057/floquet-states-of-a-kicked-particle-in-a-singular-potential-exponential-and-power-law-profiles
#2
Sanku Paul, M S Santhanam
It is well known that, in the chaotic regime, all the Floquet states of kicked rotor system display an exponential profile resulting from dynamical localization. If the kicked rotor is placed in an additional stationary infinite potential well, its Floquet states display power-law profile. It has also been suggested in general that the Floquet states of periodically kicked systems with singularities in the potential would have power-law profile. In this work, we study the Floquet states of a kicked particle in finite potential barrier...
March 2018: Physical Review. E
https://www.readbyqxmd.com/read/29765348/numerical-affordance-influences-action-execution-a-kinematic-study-of-finger-movement
#3
Rosa Rugani, Sonia Betti, Luisa Sartori
Humans represent symbolic numbers as oriented from left to right: the mental number line (MNL). Up to now, scientific studies have mainly investigated the MNL by means of response times. However, the existing knowledge on the MNL can be advantaged by studies on motor patterns while responding to a number. Cognitive representations, in fact, cannot be fully understood without considering their impact on actions. Here we investigated whether a motor response can be influenced by number processing. Participants seated in front of a little soccer goal...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29758738/open-quantum-maps-from-complex-scaling-of-kicked-scattering-systems
#4
Normann Mertig, Akira Shudo
We derive open quantum maps from periodically kicked scattering systems and discuss the computation of their resonance spectra in terms of theoretically grounded methods, such as complex scaling and sufficiently weak absorbing potentials. In contrast, we also show that current implementations of open quantum maps, based on strong absorptive or even projective openings, fail to produce the resonance spectra of kicked scattering systems. This comparison pinpoints flaws in current implementations of open quantum maps, namely, the inability to separate resonance eigenvalues from the continuum as well as the presence of diffraction effects due to strong absorption...
April 2018: Physical Review. E
https://www.readbyqxmd.com/read/29758569/relation-between-iliopsoas-cross-sectional-area-and-kicked-ball-speed-in-soccer-players
#5
Taku Wakahara, Manabu Chiba
This study aimed to investigate the relationship between the maximal anatomical cross-sectional area (ACSA) of the iliopsoas muscle and ball speed in side-foot and instep kicks. The ACSA of the psoas major and iliacus was measured in 29 male collegiate soccer players by using magnetic resonance imaging. They performed maximal side-foot and instep kicks to a stationary ball. The kicked ball speed was measured with a high-speed camera. Ball speed in the side-foot and instep kicks was significantly correlated with body height (side-foot kick: r=0...
May 14, 2018: International Journal of Sports Medicine
https://www.readbyqxmd.com/read/29753218/evaluation-of-different-captive-bolt-lengths-and-breed-influence-upon-post-stun-hind-limb-and-forelimb-activity-in-fed-cattle-at-a-commercial-slaughter-facility
#6
Miriam S Martin, Helen C Kline, Dana R Wagner, Lacey R Alexander, Lily N Edwards-Callaway, Temple Grandin
The objective of this study was to assess the effects of captive bolt length and breed type on post-stun leg activity in cattle. A total of 2850 Holstein (HOL) and non-Holstein British/Continental bred (NHOL) steers and heifers were observed post-stunning at a large commercial slaughter facility. A pneumatically powered penetrating captive bolt stunner was used with three different bolt lengths: CON, 15.24 cm; MED, 16.51 cm; and LON, 17.78 cm. Hind limb kicking, forelimb activity, take away belt stops, carcass swing and number of knife sticks during exsanguination were recorded for each animal from video recording...
May 3, 2018: Meat Science
https://www.readbyqxmd.com/read/29750254/clinical-significance-of-atrial-kick
#7
Vinod Namana, Sushilkumar Satish Gupta, Nitin Sabharwal, Gerald Hollander
A 68-year-old man with a history of diabetes mellitus type II, hypertension and active smoking was transferred to our hospital from a nearby hospital for coronary artery bypass graft (CABG) surgery after suffering a complicated inferior wall myocardial infarction (IWMI). Post the initial angioplasty, the patient developed in-stent thrombosis and became hypotensive with a systolic blood pressure < 90 mmHg. After hemodynamic stability was achieved he was transferred to our hospital. During his stay, the cardiac monitor showed fluctuations in his blood pressure with a drop in systolic blood pressure by 10 to 15 mmHg and diastolic blood pressure by 10 mmHg when he developed atrioventricular (AV) dissociation during an idioventricular rhythm...
May 10, 2018: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/29745772/specificity-elicits-higher-maximal-and-submaximal-cardiorespiratory-responses-during-a-new-taekwondo-aerobic-test
#8
Matheus Hausen, Pedro Paulo Soares, Marcus Paulo Araujo, Débora Esteves, Hilbert Julio, Roberto Tauil, Marcus Junca, Flávia Porto, Emerson Franchini, Craig Alan Bridge, Jonas Gurgel
PURPOSE: The purpose of the present study was to propose and validate new taekwondo-specific cardiopulmonary exercise tests. METHODS: Twelve male national-level taekwondo athletes (age 20 ± 2 yrs; body mass 67.5 ± 5.7 kg; height 175 ± 8 cm; training experience 7 ± 3 yrs) performed three separate exercise tests in a randomized counterbalanced order: 1) a Treadmill Running Cardiopulmonary Exercise Test (CPET); 2) Continuous and 3) Interval Taekwondo Cardiopulmonary Exercise Tests (cTKDet and iTKDet, respectively)...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29737221/injuries-in-karate-systematic-review
#9
Roger E Thomas, Jodie Ornstein
OBJECTIVES: to identify all studies of Karate injuries and assess injury rates, types, location, and causes. METHODS: Six electronic and four grey literature databases were searched. Two reviewers independently assessed titles/abstracts, abstracted data and assessed risk-of-bias with the Newcastle-Ottawa scale. Average injury rates/1000AE (AE = athletic-encounter) and/1000minutesAE, injury location and type weighted by study size were calculated. RESULTS: In competitions rates of injury/1000AE and/1000 minutesAE were similar for males (111...
May 8, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29731436/effects-of-costus-speciosus-ethanolic-extract-on-male-rats-the-action-mechanism-and-the-ability-to-impregnate
#10
Ika Puspita Sari, Arief Nurrochmad, Irfan Muris Setiawan, Triana Hertiani, Annisa Dian Paramita, Anggit Yustitia Annisa
To examine the action mechanism that mediates the anti-fertility effect of Costus speciosus extract, research was conducted on male Sprague-Dawley rats. Costus extract was given to male rats for 14 days at various doses, namely 275, 550 and 1,100 mg kg-1 day-1 in 0.5% sodium CMC. The results showed that Costus extract with doses ranging from 275 to 1,100 mg kg-1 day-1 was able to inhibit pregnancy among female rats by 10-70%. No obstacles in terms of sexual behavior were identified among male rats. The anti-fertility effect of Costus extract kicked in without involving a decreased level of male reproductive hormones...
May 2018: Pakistan Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29730312/comparing-disciplinary-methods-used-by-mothers-in-palestine-and-qatar
#11
Madeeha Kamal, Samia Halileh, Soha Dargham, Khalid A Alyafei, Rita Giacaman, Sawsan Imseeh, Nehal Eldeeb, Shiraz Nasr, Mona Korayem, Niveen Abu-Rmeileh, Ziyad Mahfoud, Hassan Tawfik, Mohamed H Mahmoud, Marcellina Mian, Margaret A Lynch
This paper explores child disciplinary methods used by parents in Qatar and Palestine. In this study ICAST-P, an internationally recognized tool, was used with mothers reporting on one of their children up to their 12th birthday. It questions about disciplinary methods: nonviolent; physical: moderate and severe; and psychological methods that had been used in the previous year on the index child in the family. A comparative national cross-sectional household survey of mothers aged 25-50 years old was conducted in both Qatar and Palestine, both Arabic Muslim states, but with very different socio-economic and political contexts that place Qataris in a much more advantageous position...
May 3, 2018: Child Abuse & Neglect
https://www.readbyqxmd.com/read/29721813/pioneer-baby-suggestions-for-pre-and-postnatal-health-promotion-programs-from-rural-english-and-spanish-speaking-pregnant-and-postpartum-women
#12
Lisette T Jacobson, Rosalee Zackula, Michelle L Redmond, Jennifer Duong, Tracie C Collins
In the United States, more than 9 million rural women (15-44 years old) experience limited access and delivery of reproductive healthcare services. Rurality coupled with lower socio-economic status are associated with increased maternal and neonatal morbidity and mortality. The purpose of this qualitative study was to gain in-depth information from underserved English- and Spanish-speaking pregnant and postpartum rural women on what they would value in a health promotion program. Three focus group sessions were conducted exploring four domains: (1) physical activity, (2) dietary habits, (3) fetal movement/kick counts, and (4) breastfeeding and other support resources...
May 2, 2018: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/29714671/dynamics-of-submaximal-effort-soccer-instep-kicking
#13
Hiroyuki Nunome, Koichiro Inoue, Kohei Watanabe, Takahito Iga, Hiroshi Akima
During a soccer match, players are often required to control the ball velocity of a kick. However, little information is available for the fundamental qualities associated with kicking at various effort levels. We aimed to illustrate segmental dynamics of the kicking leg during soccer instep kicking at submaximal efforts. The instep kicking motion of eight experienced university soccer players (height: 172.4 ± 4.6 cm, mass: 63.3 ± 5.2 kg) at 50, 75 and 100% effort levels were recorded by a motion capture system (500 Hz), while resultant ball velocities were monitored using a pair of photocells...
May 1, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29702472/fundamental-motor-skills-nutritional-status-perceived-competence-and-school-performance-of-brazilian-children-in-social-vulnerability-gender-comparison
#14
Glauber Carvalho Nobre, Nadia Cristina Valentini, Francisco Salviano Sales Nobre
Being at risk or in social vulnerability situations can affect important aspects of child development. The aim of this study was to investigate fundamental motor skills (locomotor and object control) and school (writing, arithmetic, reading) performances, the perceived competence and the nutritional status of girls and boys living in social vulnerability in the poorest regions of Brazil. Two hundred eleven (211) children (87 girls, 41%), 7-10-year-old (M = 8.3, SD = 0.9), from public schools in Ceará (Brazil), living in social vulnerability, participated in the study...
April 23, 2018: Child Abuse & Neglect
https://www.readbyqxmd.com/read/29698457/rapid-weight-reduction-does-not-impair-athletic-performance-of-taekwondo-athletes-a-pilot-study
#15
Woo-Hwi Yang, Oliver Heine, Marijke Grau
In combat sports such as taekwondo (TKD), athletes rapidly reduce body weight to achieve a desired weight category. Competition takes place 16-24 h after weigh-in and thus, the recovery time is an important factor for competition performance. The purpose of this study was to investigate the impact of rapid weight reduction (RWR) on athletic performance and associated hemorheological properties considering relevant recovery time. Five male TKD athletes reduced body weight by 5% within 3½ days. A simulated competition day (SCD) was carried out after a 16 h recovery period...
2018: PloS One
https://www.readbyqxmd.com/read/29695857/can-the-world-kick-its-fossil-fuel-addiction-fast-enough
#16
Jeff Tollefson
No abstract text is available yet for this article.
April 2018: Nature
https://www.readbyqxmd.com/read/29695189/a-multidimensional-approach-to-talent-identification-and-selection-in-high-level-youth-australian-football-players
#17
Rhys Tribolet, Kyle J M Bennett, Mark L Watsford, Job Fransen
There is limited research in talent identification in youth Australian Football (AF), especially the factors that underpin selection into higher-level development programs. Therefore, this study explored age-related differences in high-level youth AF players and investigated characteristics influencing selection into a high-level development program. Anthropometry (stature, sitting height, body mass), maturity (estimated age at peak height velocity), motor competence (Körperkoordinationstest für Kinder), fitness (change of direction speed, lower body power and upper body muscular endurance) and coach skill ratings (kicking, marking and handballing) of 277 state academy players (U13-U15) were assessed...
April 26, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29685979/the-past-and-presence-of-gene-targeting-from-chemicals-and-dna-via-proteins-to-rna
#18
REVIEW
T M Geel, M H J Ruiters, R H Cool, L Halby, D C Voshart, L Andrade Ruiz, K E Niezen-Koning, P B Arimondo, M G Rots
The ability to target DNA specifically at any given position within the genome allows many intriguing possibilities and has inspired scientists for decades. Early gene-targeting efforts exploited chemicals or DNA oligonucleotides to interfere with the DNA at a given location in order to inactivate a gene or to correct mutations. We here describe an example towards correcting a genetic mutation underlying Pompe's disease using a nucleotide-fused nuclease (TFO-MunI). In addition to the promise of gene correction, scientists soon realized that genes could be inactivated or even re-activated without inducing potentially harmful DNA damage by targeting transcriptional modulators to a particular gene...
June 5, 2018: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/29673837/movements-of-older-adults-during-exergaming-interventions-that-are-associated-with-the-systems-framework-for-postural-control-a-systematic-review
#19
REVIEW
Robin Tahmosybayat, Katherine Baker, Alan Godfrey, Nick Caplan, Gill Barry
One in three older adults fall annually, in part due to impairments in the physiological systems that make up the postural control (PC) system. Exercise, particularly balance training, helps to prevent deterioration and even to improve outcomes in the PC system. Exergaming (exercise-gaming) is interactive computer gaming whereby an individual moves the body in response to onscreen cues in a playful format. Exergaming is an alternative method to standard practice for improving PC outcomes, which has been shown to reduce the risk of falling...
May 2018: Maturitas
https://www.readbyqxmd.com/read/29672932/investigation-of-knee-control-as-a-lower-extremity-injury-risk-factor-a-prospective-study-in-youth-football
#20
Anu M Räisänen, Hillevi Arkkila, Tommi Vasankari, Kathrin Steffen, Jari Parkkari, Pekka Kannus, Hannele Forsman, Kati Pasanen
This prospective study in youth football examined the relationship between frontal plane knee projection angle (FPKPA) during the single-leg squat and sustaining an acute lower extremity injury or acute non-contact lower extremity injury. Secondly, side-to-side asymmetry in FPKPA and sex as injury risk factors were explored. In addition, we investigated the influence of age, sex and leg dominance on the FPKPA. A total of 558 youth football players (U11 to U14), participated in the single-leg squat test and prospective injury registration...
April 19, 2018: Scandinavian Journal of Medicine & Science in Sports
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