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https://www.readbyqxmd.com/read/29889777/laboratory-based-physical-and-physiological-test-results-that-serve-as-predictors-of-male-amateur-road-cyclists-performance-levels
#1
Ben Coetzee, Dawie Malan
Coetzee, B, and Malan, D. Laboratory-based physical and physiological test results that serve as predictors of male, amateur road cyclists' performance levels. J Strength Cond Res XX(X): 000-000, 2018-The purposes of this study were first, to determine the practical significant differences of laboratory-based physical and physiological test results between a selected group of successful and less successful amateur, male road cyclists from Africa; and second, to determine the significance, adequacy, accurateness, and usefulness of laboratory-based physical and physiological test results to serve as predictors of these amateur, male road cyclists' performance levels...
June 8, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29888638/strength-and-conditioning-in-adolescent-female-athletes
#2
Corinne Sommi, Frances Gill, Jeffrey D Trojan, Mary K Mulcahey
OBJECTIVES: Despite evidence that strength and conditioning (S&C) programs decrease injury risk and increase sport performance, young females are rarely offered S&C programs comparable to those of their male counterparts. The purpose of this study was to evaluate the current body of available literature regarding S&C in adolescent female athletes, describe potential benefits, and generate recommendations for S&C programs for female adolescent athletes. METHODS: The systematic review was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines...
June 9, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29888376/concussion-knowledge-attitudes-and-reporting-intention-among-adult-competitive-muay-thai-kickboxing-athletes-a-cross-sectional-study
#3
Reidar P Lystad, Stephen J Strotmeyer
BACKGROUND: Muay Thai kickboxing is a full-contact combat sport with a high incidence of head trauma, yet little is known about these athletes' concussion knowledge and attitudes. This study aims to describe and quantify concussion knowledge, attitudes, and reporting intention among adult competitive Muay Thai kickboxing athletes. RESULTS: This cross-sectional study comprised 193 competitive Muay Thai kickboxing athletes aged ≥18 years registered with the Thai Boxing Association Sanctioning Authority...
June 11, 2018: Injury Epidemiology
https://www.readbyqxmd.com/read/29883372/predicting-athletes-pre-exercise-fluid-intake-a-theoretical-integration-approach
#4
Chunxiao Li, Feng-Hua Sun, Liancheng Zhang, Derwin King Chung Chan
Pre-exercise fluid intake is an important healthy behavior for maintaining athletes’ sports performances and health. However, athletes’ behavioral adherence to fluid intake and its underlying psychological mechanisms have not been investigated. This prospective study aimed to use a health psychology model that integrates the self-determination theory and the theory of planned behavior for understanding pre-exercise fluid intake among athletes. Participants ( n = 179) were athletes from college sport teams who completed surveys at two time points...
May 21, 2018: Nutrients
https://www.readbyqxmd.com/read/29879362/sex-differences-in-the-clinical-incidence-of-concussions-missed-school-days-and-time-loss-in-high-school-student-athletes-part-1
#5
Abigail C Bretzin, Tracey Covassin, Meghan E Fox, Kyle M Petit, Jennifer L Savage, Lauren F Walker, Daniel Gould
BACKGROUND: Sports-related concussion (SRC) injury rates are well established in collegiate athletics through epidemiological studies using the National Collegiate Athletic Association Injury Surveillance System. However, few studies have examined sex differences, time loss, and missed school days in high school athletes, especially at the state level. PURPOSE: To identify sex differences in the clinical incidence of SRCs, missed school days, and time loss in high school student-athletes...
June 1, 2018: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29878985/evaluation-of-skating-top-speed-acceleration-and-multiple-repeated-sprint-speed-ice-hockey-performance-tests
#6
Colin W Bond, Tylor W Bennett, Benjamin C Noonan
Bond, CW, Bennett, TW, and Noonan, BC. Evaluation of skating top speed, acceleration, and multiple repeated sprint speed ice hockey performance tests. J Strength Cond Res XX(X): 000-000, 2018-Skating speed, acceleration (ACC), and economy are important attributes related to ice hockey success and should ideally be tested on the ice in a reliable and time efficient manner that is accessible to coaches at all levels of the sport. The purpose of this study was to determine the reliability of certain on-ice tests and further, to use these results to evaluate changes in performance across a season...
June 6, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29878984/physiological-responses-to-swimming-repetitive-ice-miles
#7
Beat Knechtle, Mirko Stjepanovic, Celina Knechtle, Thomas Rosemann, Caio V Sousa, Pantelis T Nikolaidis
Knechtle, B, Stjepanovic, M, Knechtle, C, Rosemann, T, Sousa, CV, and Nikolaidis, PT. Physiological responses to swimming repetitive "Ice Miles." J Strength Cond Res XX(X): 000-000, 2018-"Ice Mile" swimming (i.e., 1,608 m in water of below 5° C) is becoming increasingly popular. Since the foundation of the International Ice Swimming Association (IISA) in 2009, official races are held as World Cup Races and World Championships. Ice swimming was a demonstration sport at the 2014 Winter Olympics in Sochi, Russia...
June 6, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29877758/sexual-violence-against-children-in-sports-and-exercise-a-systematic-literature-review
#8
Ingunn Bjørnseth, Attila Szabo
Sexual violence against children in sports receives little research attention. The aim of this Preferred Reporting Items for Systematic Reviews and Meta-Analyses-based systematic literature review was to synthesize the up-to-date knowledge and identify the already known and the still unknown information in this area. The literature search yielded seven eligible studies for inclusion. Their key outcomes suggest that sexual violence against children in sports is prevalent. Girls are more often the victims than boys, but gender appears to mediate the disclosure...
June 7, 2018: Journal of Child Sexual Abuse
https://www.readbyqxmd.com/read/29877677/a-systematic-review-on-posterior-circumflex-humeral-artery-pathology-sports-and-professions-at-risk-and-associated-risk-factors
#9
Rik B Kraan, Lisa Beers, Daan van de Pol, Joost G Daams, Mario Maas, P Paul Kuijer
INTRODUCTION: Posterior circumflex humeral artery (PCHA) aneurysm formation and thrombosis as overuse injury in the dominant shoulder can result in ischemia of the forearm, hand and digits due to arterial embolisms. Increased awareness among physicians is necessary as PCHA pathology (PCHAP) might be underdiagnosed. Knowledge of sports and professions at risk and risk-factors for obtaining PCHAP is essential for the development of future preventive measures. This study aims to identify sports and professions at risk as well as risk factors for PCHAP...
June 7, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29876863/professional-soccer-is-associated-with-radiographic-cam-and-pincer-hip-morphology
#10
Guilherme Guadagnini Falotico, Gustavo Gonçalves Arliani, André Fukunishi Yamada, Artur da Rocha Correa Fernandes, Benno Ejnisman, Moises Cohen
PURPOSE: Femoroacetabular impingement (FAI) syndrome is characterized by a triad: symptoms, clinical signs and imaging findings. Some individuals, especially athletes, have only imaging alterations. The objective of this study was to evaluate the prevalence of cam and pincer morphology in professional soccer players compared with a control group of non-athletes and to investigate the association between the age at which players start playing competitive soccer more than three times per week and duration of the soccer career with the prevalence of these radiographic findings...
June 6, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29867674/a-systematic-review-of-commercial-cognitive-training-devices-implications-for-use-in-sport
#11
David J Harris, Mark R Wilson, Samuel J Vine
Background: Cognitive training (CT) aims to develop a range of skills, like attention and decision-making, through targeted training of core cognitive functions. While CT can target context specific skills, like movement anticipation, much CT is domain general, focusing on core abilities (e.g., selective attention) for transfer to a range of real-world tasks, such as spotting opponents. Commercial CT (CCT) devices are highly appealing for athletes and coaches due to their ease of use and eye-catching marketing claims...
2018: Frontiers in Psychology
https://www.readbyqxmd.com/read/29867552/importance-of-reactive-agility-and-change-of-direction-speed-in-differentiating-performance-levels-in-junior-soccer-players-reliability-and-validity-of-newly-developed-soccer-specific-tests
#12
Haris Pojskic, Erik Åslin, Ante Krolo, Ivan Jukic, Ognjen Uljevic, Miodrag Spasic, Damir Sekulic
Agility is a significant determinant of success in soccer; however, studies have rarely presented and evaluated soccer-specific tests of reactive agility (S_RAG) and non-reactive agility (change of direction speed - S_CODS) or their applicability in this sport. The aim of this study was to define the reliability and validity of newly developed tests of the S_RAG and S_CODS to discriminate between the performance levels of junior soccer players. The study consisted of 20 players who were involved at the highest national competitive rank (all males; age: 17...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29865179/wave-ripples-for-change-obesity-two-year-intervention-in-high-school-soccer-players-process-evaluation-best-practices-and-youth-engagement
#13
Yu Meng, Siew Sun Wong, Melinda M Manore, Mēgan Patton-López
This paper reports the process data on program fidelity, best practices for intervention implementation, youth and coach engagement, and youth application of knowledge and skills for the two-year WAVE~Ripples for Change (WAVE) obesity prevention intervention program focused on healthy eating, physical activity, and life skills with high school (HS) soccer players aged 14⁻19 years. Internal (staff: n = 7; volunteers: n = 27) and external (youth: n = 100; coaches: n = 9) stakeholders were interviewed/ surveyed...
June 1, 2018: Nutrients
https://www.readbyqxmd.com/read/29846980/a-novel-method-to-guide-classification-of-para-swimmers-with-limb-deficiency
#14
Luke Hogarth, Carl Payton, Peter Van de Vliet, Mark Connick, Brendan Burkett
The International Paralympic Committee has directed International Federations that govern Para sports to develop evidence-based classification systems. This study defined the impact of limb deficiency impairment on 100 m freestyle performance to guide an evidence-based classification system in Para Swimming, which will be implemented following the 2020 Tokyo Paralympic games. Impairment data and competitive race performances of 90 international swimmers with limb deficiency were collected. Ensemble partial least squares regression established the relationship between relative limb length measures and competitive 100 m freestyle performance...
May 30, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29845831/expertise-level-influences-postural-balance-control-in-young-gymnasts
#15
Giuseppe Marcolin, Alex Rizzato, Jessica Zuanon, Gerardo Bosco, Antonio Paoli
BACKGROUND: The specificity of postural balance control in sports as gymnastic where complex motor skills are involved is widely debated in literature. The aim of this study was to investigate in young gymnasts whether the amount of training influenced postural balance control in a simple-task and in a sport-specific task. METHODS: Seven female Basic-Level Gymnasts (BLG) and eight female Advanced-Level Gymnasts (ALG) performed two tests on a dynamometric platform: bipedal standing (B) and single leg back scale (BS) before and after a combination of two gymnastic elements (rondade + flic-flac)...
May 29, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29809072/concurrent-training-for-sports-performance-the-two-sides-of-the-medal
#16
Nicolas Berryman, Inigo Mujika, Laurent Bosquet
The classical work by Robert C. Hickson showed in 1980 that the addition of a resistance training protocol to a predominantly aerobic program could lead to impaired leg strength adaptations in comparison to a resistance-only training regimen. This interference phenomenon was later highlighted in many reports, including a meta-analysis. However, it seems that the interference effect has not been consistently reported, probably because of the complex interactions between training variables and methodological issues...
May 29, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29809068/1rm-measures-or-maximum-bar-power-output-which-is-more-related-to-sport-performance
#17
Irineu Loturco, Timothy Suchomel, Chris Bishop, Ronaldo Kobal, Lucas A Pereira, Michael McGuigan
PURPOSE: This study compared the associations between optimum power loads and 1-repetition maximum (1RM) values (assessed in half-squat [HS] and jump squat [JS] exercises) and multiple performance measures in elite athletes. METHODS: Sixty-one elite athletes (fifteen Olympians) from four different sports (track and field [sprinters and jumpers], rugby sevens, bobsled, and soccer) performed squat and countermovement jumps, HS exercise (for assessing 1RM), HS and JS exercises (for assessing bar-power output), and sprint tests (60-m for sprinters and jumpers and 40-m for the other athletes)...
May 29, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29804653/entropy-measures-detect-increased-movement-variability-in-resistance-training-when-elite-rugby-players-use-the-ball
#18
Gerard Moras, Bruno Fernández-Valdés, Jairo Vázquez-Guerrero, Julio Tous-Fajardo, Juliana Exel, Jaime Sampaio
OBJECTIVES: This study described the variability in acceleration during a resistance training task, performed in horizontal inertial flywheels without (NOBALL) or with the constraint of catching and throwing a rugby ball (BALL). DESIGN AND METHODS: Twelve elite rugby players (mean±SD: age 25.6±3.0years, height 1.82±0.07m, weight 94.0±9.9kg) performed a resistance training task in both conditions (NOBALL AND BALL). Players had five minutes of a standardized warm-up, followed by two series of six repetitions of both conditions: at the first three repetitions the intensity was progressively increased while the last three were performed at maximal voluntary effort...
May 24, 2018: Journal of Science and Medicine in Sport
https://www.readbyqxmd.com/read/29796193/effects-of-acute-sleep-deprivation-and-caffeine-supplementation-on-anaerobic-performance
#19
Joss Moore, Ciaran McDonald, Alan McIntyre, Kevin Carmody, Bernard Donne
Purpose: Athletes involved in team sports may be subject to varying degrees of sleep deprivation either before or after training and competition. Despite the belief among athletes and coaches of the importance of adequate sleep for ensuing performance, the effect of sleep loss on team-sport anaerobic performance remains unclear. There is conflicting evidence in the scientific literature as to the impact of acute sleep deprivation and caffeine supplementation on anaerobic performance indices...
January 2018: Sleep Science
https://www.readbyqxmd.com/read/29792560/acceleration-profile-of-an-acrobatic-act-during-training-and-shows-using-wearable-technology
#20
Leland Barker, Bryan Burnstein, John Mercer
The purpose of this study was to describe the mechanical characteristics of a trampoline circus act and its individual tracks performed in training and shows using a tri-axial accelerometer. A track is an artist's specific role within a choreographed act. Seven male acrobats performed their trampoline act during training and shows while wearing a triaxial accelerometer and reported ratings of perceived exertion (RPE) after each trial. Average acceleration (AVG), root mean square (RMS), root mean to the fourth (RM4), time spent in specific acceleration ranges and RPE were measured/recorded from training and show acts...
May 24, 2018: Sports Biomechanics
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