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https://www.readbyqxmd.com/read/29772095/effect-of-specific-exercise-strategy-on-strength-and-proprioception-in-volleyball-players-with-infraspinatus-muscle-atrophy
#1
José Inácio Salles, Victor Rodrigues Amaral Cossich, João Matheus Guimarães, Geraldo Motta Filho, Dylan Morrissey
Infraspinatus muscle atrophy is common in professional volleyball players, but it is unclear whether commonly observed strength and proprioception deficits can be reversed with training. Fifty-four participants were recruited into an infraspinatus atrophy group (IAG, n = 18) and a non-atrophy group (NAG, n=18) of elite volleyballers plus a healthy non-athletic control group (CG, n = 18). IAG were trained with a progressive, specific shoulder external rotator strengthening routine for 32 sessions over 8 weeks...
May 17, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29753485/genome-wide-association-study-and-in-silico-functional-analysis-of-the-number-of-embryos-produced-by-holstein-donors
#2
C Jaton, F S Schenkel, M Sargolzaei, A Cánova, F Malchiodi, C A Price, C Baes, F Miglior
Superovulation or ovum pick-up and in vitro fertilization are technologies used to produce an increased number of embryos from elite females. Embryo production traits have been shown to be heritable, but the genes that cause this variability have not yet been assessed. The main objectives of this study were to perform a genome-wide association study (GWAS) to find single nucleotide polymorphisms (SNP) associated with embryo production traits and to identify candidate genes affecting the number of embryos produced by Holstein donors in Canada that may provide insight into the regulation of embryo production...
May 9, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29749646/left-and-right-ventricular-morphology-and-function-in-athletes-with-elevated-pulmonary-systolic-arterial-pressure
#3
Oana Mirea, Oana M Corîci, Octavian Istrătoaie, Ionuț Donoiu, Maria Iancău, Constantin Militaru
OBJECTIVES: The objective of the study was to evaluate the prevalence and potential impact of elevated pulmonary arterial systolic pressure (PASP) on left and right cardiac morphology and function in young elite athletes. METHODS: In total, 85 professional athletes (40 endurance, 20 strength, and 25 mixed training, mean age 17.8 ± 4.0) and 50 sedentary controls (mean age 18.6 ± 3.3) underwent transthoracic echocardiographic examination. Two-dimensional measurements of the right (RV) and left ventricle (LV) were obtained...
May 11, 2018: Echocardiography
https://www.readbyqxmd.com/read/29749641/antioxidant-rich-foods-and-response-to-altitude-training-a-randomized-controlled-trial-in-elite-endurance-athletes
#4
Anu Elisa Koivisto, Gøran Paulsen, Ingvild Paur, Ina Garthe, Espen Tønnessen, Truls Raastad, Nasser Ezzatkhah Bastani, Jostein Hallén, Rune Blomhoff, Siv Kjølsrud Bøhn
High doses of isolated antioxidant supplements such as vitamin C and E, have demonstrated the potential to blunt cellular adaptations to training It is, however, unknown whether intake of high doses of antioxidants from foods has similar effects. Hence, the aim of the study was to investigate whether intake of antioxidant-rich foods affects adaptations to altitude training in elite athletes. In a randomized controlled trial, 31 national team endurance athletes (23 ± 5 years), ingested antioxidant-rich foods (n=16) or eucaloric control foods (n=15) daily during a 3-week altitude training camp (2320 m)...
May 11, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29749073/understanding-genetic-control-of-root-system-architecture-in-soybean-insights-into-the-genetic-basis-of-lateral-root-number
#5
Silvas J Prince, Babu Valliyodan, Heng Ye, Ming Yang, Shuaishuai Tai, Wushu Hu, Mackensie Murphy, Lorellin A Durnell, Li Song, Trupti Joshi, Yang Liu, Jan Van de Velde, Klaas Vandepoele, J Grover Shannon, Henry T Nguyen
Developing crops with better root systems is a promising strategy to ensure productivity in both optimum and stress environments. Root system architectural (RSA) traits in 397 soybean accessions were characterized and a high-density single nucleotide polymorphisms (SNP) based genome-wide association study was performed to identify the underlying genes associated with root structure. SNPs associated with root architectural traits specific to landraces and elite germplasm pools were detected. Four loci were detected in landraces for lateral root number (LRN) and distribution of root thickness in diameter class I with a major locus on chromosome 16...
May 10, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29746383/angle-specific-isokinetic-metrics-highlight-strength-training-needs-of-elite-youth-soccer-players
#6
Steven J Eustace, Richard M Page, Matt Greig
Eustace, SJ, Page, RM, and Greig, M. angle specific isokinetic metrics highlight strength training needs of elite youth soccer players. J Strength Cond Res XX(X): 000-000, 2018-The purpose of this study was to assess traditional and angle-specific isokinetic strength of eccentric knee flexors (eccKFs) and concentric knee extensors (conKEs) between senior professional and youth soccer players. Thirty-four male soccer players (17 senior and 17 youth) were recruited for bilateral assessments at 180, 270, and 60°·s...
May 2, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29745735/time-trial-performance-in-elite-speed-skaters-after-remote-ischemic-preconditioning
#7
Philippe Richard, François Billaut
PURPOSE: Speed skating leads to blood-flow restriction and deoxygenation in the lower limbs (especially the right leg) that may affect performance. Although the acute influence of such deoxygenation is not clearly understood, we tested whether remote ischemic preconditioning (RIPC) could modify muscular oxygenation and improve time-trial performance in that sport. METHODS: Using a randomized, single-blind, placebo-controlled, crossover design, 9 elite speed skaters performed 1000-m on-ice time-trials preceded by either RIPC of the upper limbs (3x5-min compression/5-min reperfusion cycles at 30 mmHg > arterial systolic pressure) or SHAM (10 mmHg)...
May 10, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29745219/changes-in-doppler-echocardiography-depending-on-type-of-elite-athletes-immediately-after-maximal-exercise
#8
Saejong Park, Young J Moon, Gi-Byoung Nam, Young-Joo Kim
BACKGROUND: This study explores physiologic differences in the cardiac structure and function of elite athletes during the resting state and immediately after maximum exercise by training type compared to a healthy people of a CG. METHODS: The study focuses on elite middle-long distance group (MLDG), weightlifter group (WG), and a control group (CG). Cardiac structure, systolic function, and diastolic function were measured for all subjects at resting state and immediately after maximum exercise using echocardiography...
May 9, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29743961/asthma-control-and-asthma-medication-use-among-swedish-elite-endurance-athletes
#9
Hampus Persson, Anne Lindberg, Nikolai Stenfors
Background: Asthma is common in elite athletes. In this study, we examined the use of asthma medication and asthma control in endurance athletes in Sweden and compared the findings with those in a reference group of patients with asthma. Methods: The Asthma Control Test (ACT) and a questionnaire on asthma, respiratory symptoms, and medication use were posted to endurance athletes ( n =711) and the reference group of patients with asthma ( n =1026). Four hundred and sixty-nine athletes (66%) responded, of whom 141 (20%) reported physician-diagnosed asthma...
2018: Canadian Respiratory Journal: Journal of the Canadian Thoracic Society
https://www.readbyqxmd.com/read/29741443/the-effect-of-individualised-sprint-training-in-elite-female-team-sport-athletes-a-pilot-study
#10
Elvir Rakovic, Gøran Paulsen, Christian Helland, Ola Eriksrud, Thomas Haugen
This study aimed to evaluate whether an individualised sprint-training program was more effective in improving sprint performance in elite team-sport players compared to a generalised sprint-training program. Seventeen elite female handball players (23 ± 3 y, 177 ± 7 cm, 73 ± 6 kg) performed two weekly sprint training sessions over eight weeks in addition to their regular handball practice. An individualised training group (ITG, n = 9) performed a targeted sprint-training program based on their horizontal force-velocity profile from the pre-training test...
May 9, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29734326/-vaccines-and-sport-risk-perception-among-athletes
#11
Elisa Terracciano, Matteo Iachini, Laura Zaratti, Elisabetta Franco
Infection prevention is a key issue in both general population and in categories at risk, among which the athletes. There are risk factors related to the sporting practice performed at every level, from the amateur to the elite athletes. The control of the vaccination schedule and the empowerment of the sportsman in this area should be carried out both by the General Practitioner or the Pediatrician and by the federations to which the athletes belong. There is a need for guidelines and it is necessary to inform the athletes...
January 2018: Igiene e Sanità Pubblica
https://www.readbyqxmd.com/read/29723200/longitudinal-motor-performance-development-in-early-adolescence-and-its-relationship-to-adult-success-an-8-year-prospective-study-of-highly-talented-soccer-players
#12
Daniel Leyhr, Augustin Kelava, Johannes Raabe, Oliver Höner
Several talent identification and development (TID) programs in soccer have implemented diagnostics to measure players' motor performance. Yet, there is a lack of research investigating the relationship between motor development in adolescence and future, adult performance. This longitudinal study analyzed the three-year development of highly talented young soccer players' speed abilities and technical skills and examined the relevance of this development to their adult success. The current research sample consisted of N = 1,134 players born between 1993 and 1995 who were selected for the German Soccer Association's TID program and participated in nationwide motor diagnostics (sprinting, agility, dribbling, ball control, shooting) four times between the Under 12 (U12) and Under 15 (U15) age class...
2018: PloS One
https://www.readbyqxmd.com/read/29722428/futility-of-current-urine-salbutamol-doping-control
#13
Jules A A C Heuberger, Sven C van Dijkman, Adam F Cohen
AIM: Salbutamol is used in the management of obstructive bronchospasm, including that of some elite athletes. It is claimed that high salbutamol (oral) doses may also have an anabolic effect. Therefore, inhalation of salbutamol is restricted by the World Anti-Doping Agency (WADA) to a maximal daily dose. Urine is tested for violations, but recent cases have resulted in a debate regarding the validity of this approach. It was our aim to determine whether current approaches are sufficiently able to differentiate approved usage from violations...
May 3, 2018: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/29721460/flexibility-responses-to-different-stretching-methods-in-young-elite-basketball-players
#14
Angela Notarnicola, Fabrizio Perroni, Alessio Campese, Giuseppe Maccagnano, Antonio Monno, Biagio Moretti, Silvio Tafuri
Introduction: The aims of study were: 1) to verify the effectiveness of different stretching methods and training; 2) to compare the effects with only training on the flexibility of joints in basketball players. Methods: 30 males basketball players (age: 17±1yrs; BMI: 23.4±3.1), divided into 2 groups (15 experimental group - EG - and 15 control group, CG), participated to study. EG performed 5 different stretching method: passive stretching, active stretching, postural protocol, PNF and dynamic stretching...
October 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/29720479/scientific-rationale-for-changing-lower-water-temperature-limits-for-triathlon-racing-to-12%C3%A2-c-with-wetsuits-and-16%C3%A2-c-without-wetsuits
#15
Jane Saycell, Mitch Lomax, Heather Massey, Mike Tipton
OBJECTIVES: To provide a scientific rationale for lower water temperature and wetsuit rules for elite and subelite triathletes. METHODS: 11 lean, competitive triathletes completed a 20 min flume swim, technical transition including bike control and psychomotor testing and a cycle across five different wetsuit and water temperature conditions: with wetsuit: 10°C, 12°C and 14°C; without wetsuit (skins): 14°C and 16°C. Deep body (rectal) temperature (Tre ), psychomotor performance and the ability to complete a technical bike course after the swim were measured, as well as swimming and cycling performance...
May 2, 2018: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/29719045/wearing-the-marks-of-violence-unusual-trauma-patterning-at-coyo-oriental-northern-chile
#16
Christina Torres-Rouff, Mark Hubbe, William J Pestle
OBJECTIVES: In this article, we present analyses of traumatic injury data from the Middle Period Coyo Oriental cemetery in northern Chile. We test a series of hypotheses about the role of sex, foreign contact, ritual access, and temporal shifts, in the patterning of cranial trauma in this cemetery. METHODS: Two hundred and twenty-seven crania from Coyo Oriental were analyzed using standard bioarcheological methods to determine sex and age as well as the presence of cranial fractures...
May 2, 2018: American Journal of Physical Anthropology
https://www.readbyqxmd.com/read/29707231/preventing-lower-extremity-injury-in-elite-orienteerers-study-protocol-for-a-randomised-controlled-trial
#17
Philip von Rosen, Bodil Halvarsson
Background: The high physical load associated with running through uneven terrain contributes toorienteerers being exposed to high injury risk, where the majority of injuries are located in the lower extremities. Specific training programmes have been effective at reducing injury risk in sports. Yet no trial has been conducted in elite orienteering. The aim of this study is to investigate the effectiveness of a specific training programme in preventing lower extremity injury in adult elite orienteerers...
2018: BMJ Open Sport & Exercise Medicine
https://www.readbyqxmd.com/read/29696994/the-impact-of-musical-training-on-hand-biomechanics-in-string-musicians
#18
Stacey L Gorniak, Evan D Collins, Kimberly Goldie Staines, Forrest A Brooks, Ricardo V Young
BACKGROUND: The effects of musical training on the body in professional musicians remain an understudied area, particularly in reference to understanding and managing orthopedic/neuromuscular deviations and injuries in this population. The purpose of this study was to evaluate hand/finger fine motor function in musicians via physical examination as well as laboratory-based evaluations. METHODS: Thirteen healthy noninjured young elite string musicians participated in this study...
April 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29687690/anthropometric-characteristics-of-top-class-olympic-race-walkers
#19
Josu Gomez-Ezeiza, Nicholas Tam, Jon Torres-Unda, Cristina Granados, Jordan Santos-Concejero
BACKGROUND: Typical training programmes in elite race walkers involve high training volumes at low and moderate intensities, which have been reported to induce functional and structural adaptations at an anthropometric level. Since anthropometrical variables are closely related to movement efficiency and performance in endurance events, the aim of this study was to describe the anthropometric profile of world-class race walkers. METHODS: Twenty-nine world-class race walkers (21 men & 8 women) participated in this study...
April 20, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29685828/influence-of-cold-water-immersion-on-recovery-of-elite-triathletes-following-the-ironman-world-championship
#20
Rebecca L Stearns, Julie K Nolan, Robert A Huggins, Carl M Maresh, Colleen X Munõz, Kelly D Pagnotta, Brittanie M Volk, Douglas J Casa
OBJECTIVES: Cold water immersion (CWI) has been widely used for enhancing athlete recovery though its use following an Ironman triathlon has never been examined. The purpose of this paper is to determine the influence of CWI immediately following an Ironman triathlon on markers of muscle damage, inflammation and muscle soreness. DESIGN: Prospective cohort study. METHODS: Thirty three (22 male, 11 female), triathletes participating in the Ironman World Championships volunteered to participate (mean±SD: age=40±11years; height=174...
January 31, 2018: Journal of Science and Medicine in Sport
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