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Athletic Ability Assessment

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https://www.readbyqxmd.com/read/29234553/gait-deficits-under-dual-task-conditions-in-the-concussed-adolescent-and-young-athlete-population-a-systematic-review
#1
Larisa Grants, Bailey Powell, Cody Gessel, Faith Hiser, Amy Hassen
Background: There are no current sport concussion assessments that capture the effects of dual-task conditions on gait. Multiple studies have evaluated changes, but none have comprehensively examined literature related to the adolescent and young adult population.Purpose: The purpose of this systematic review is to synthesize documented changes in gait under dual-task conditions in adolescents and young adults after sustaining a concussion.Study Design: Systematic Review. Methods: The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) was consulted to guide this systematic review...
December 2017: International Journal of Sports Physical Therapy
https://www.readbyqxmd.com/read/29216301/chronic-dietary-supplementation-with-soy-protein-improves-muscle-function-in-rats
#2
Ramzi J Khairallah, Karen M O'Shea, Christopher W Ward, Dustie N Butteiger, Ratna Mukherjea, Elaine S Krul
Athletes as well as elderly or hospitalized patients use dietary protein supplementation to maintain or grow skeletal muscle. It is recognized that high quality protein is needed for muscle accretion, and can be obtained from both animal and plant-based sources. There is interest to understand whether these sources differ in their ability to maintain or stimulate muscle growth and function. In this study, baseline muscle performance was assessed in 50 adult Sprague-Dawley rats after which they were assigned to one of five semi-purified "Western" diets (n = 10/group) differing only in protein source, namely 19 kcal% protein from either milk protein isolate (MPI), whey protein isolate (WPI), soy protein isolate (SPI), soy protein concentrate (SPC) or enzyme-treated soy protein (SPE)...
2017: PloS One
https://www.readbyqxmd.com/read/29210955/comparison-between-power-off-ice-test-and-performance-on-ice-anaerobic-testing
#3
Vincent Gosselin Boucher, Andrée-Anne Parent, Fanie St-Jean Miron, Mario Leone, Alain Steve Comtois
The importance of specific testing has been shown in ice hockey performance and the understanding and connection between them may lead to adapting training and follow up in elite athletes. The aim of the present study was to compare two off-ice power tests with performances on ice with a complete professional hockey team. The broad jump test and the vertical jump test were used for the off-ice evaluations, while the SAS-40 and the repeated skate sprint modify (RSSm) tests were used as the performance variables...
November 27, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29176957/manual-dexterity-and-intralimb-coordination-assessment-to-distinguish-different-levels-of-impairment-in-boccia-players-with-cerebral-palsy
#4
Alba Roldan, Rafael Sabido, David Barbado, Carla Caballero, Raúl Reina
Background: Boccia is a paralympic sport played by athletes with severe neurological impairments affecting all four limbs. Impaired manual dexterity (MD) and intralimb coordination (ILC) may limit individuals' ability to perform certain activities such as grasping, releasing, or manipulating objects, which are essential tasks for daily life or to participate in para sports such as boccia. However, there are currently no specific instruments available to assess hand-arm coordination in boccia players with severe cerebral palsy (CP)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/29146284/supervised-learning-techniques-and-their-ability-to-classify-a-change-of-direction-task-strategy-using-kinematic-and-kinetic-features
#5
Chris Richter, Enda King, Eanna Falvey, Andrew Franklyn-Miller
This study examines the ability of commonly used supervised learning techniques to classify the execution of a maximum effort change of direction task into predefined movement pattern as well as the influence of fuzzy executions and the impact of selected features (e.g. peak knee flexion) towards classification accuracy. The experiment utilized kinematic and kinetic data from 323 male subjects with chronic athletic groin pain. All subjects undertook a biomechanical assessment and had been divided previously into 3 different movement strategies in an earlier paper...
October 31, 2017: Journal of Biomechanics
https://www.readbyqxmd.com/read/29140129/calling-injury-timeouts-for-the-medical-evaluation-of-concussion-determinants-of-collegiate-football-officials-behavior
#6
Emily Kroshus, John Parsons, Brian Hainline
CONTEXT:   Sports officials can play an important role in concussion safety by calling injury timeouts so that athletic trainers can evaluate athletes with possible concussions. Understanding the determinants of whether officials call an injury timeout when they suspect a concussion has important implications for the design of interventions that better support officials in this role. OBJECTIVE:   To assess the knowledge of US collegiate football officials about concussion symptoms and to determine the associations between knowledge, perceived injunctive norms, and self-efficacy and calling injury timeouts for suspected concussions in athletes...
November 8, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29139646/physical-fitness-and-digit-ratio-2d-4d-in-male-students-from-wroc%C3%A5-aw-poland
#7
Slawomir Koziel, Marek Kociuba Mail, Raja Chakraborty, Zofia Ignasiak
There is sex-difference in humans as regards aerobic efficiency, physical strength and endurance and the sex difference is greatly dependent upon differential concentration of testosterone during different phases of growth and development including the intrauterine phase or prenatal growth. Second-to-fourth digit lengths ratio (2D:4D) is an putative indicator of prenatal testosterone exposure. Lower 2D:4D indicates higher prenatal testosterone exposure and vice versa. Males generally have lower 2D:4D than females...
March 2017: Collegium Antropologicum
https://www.readbyqxmd.com/read/29116828/calling-injury-timeouts-for-the-medical-evaluation-of-concussion-determinants-of-collegiate-football-officials-behavior
#8
Emily Kroshus, John Parsons, Brian Hainline
CONTEXT:   Sports officials can play an important role in concussion safety by calling injury timeouts so that athletic trainers can evaluate athletes with possible concussions. Understanding the determinants of whether officials call an injury timeout when they suspect a concussion has important implications for the design of interventions that better support officials in this role. OBJECTIVE:   To assess the knowledge of US collegiate football officials about concussion symptoms and to determine the associations between knowledge, perceived injunctive norms, and self-efficacy and calling injury timeouts for suspected concussions in athletes...
November 8, 2017: Journal of Athletic Training
https://www.readbyqxmd.com/read/29107196/high-prevalence-of-the-igf2-rs680-gg-polymorphism-among-top-level-sprinters-and-jumpers
#9
Sigal Ben-Zaken, Yoav Meckel, Dan Nemet, Alon Eliakim
Previous studies have shown that the IGF1 polymorphism is associated with greater muscle mass and improved power athletic ability, but very little is known about the IGF2 polymorphism and athletic performance. PURPOSE: The aim of the present study was to assess the frequency distribution of the IGF2 rs680 polymorphism among Israeli athletes. METHODS: 185 short- (n=72) and long-distance (n=113) runners, 94 short- (n=44) and long-distance (n=50) swimmers, 54 weight lifters and 111 controls participated in the study...
December 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29075200/neuromuscular-adaptations-to-multimodal-injury-prevention-programs-in-youth-sports-a-systematic-review-with-meta-analysis-of-randomized-controlled-trials
#10
Oliver Faude, Roland Rössler, Erich J Petushek, Ralf Roth, Lukas Zahner, Lars Donath
Objective: Neuromuscular injury prevention programs (IPP) can reduce injury rate by about 40% in youth sport. Multimodal IPP include, for instance, balance, strength, power, and agility exercises. Our systematic review and meta-analysis aimed to evaluate the effects of multimodal IPP on neuromuscular performance in youth sports. Methods: We conducted a systematic literature search including selected search terms related to youth sports, injury prevention, and neuromuscular performance. Inclusion criteria were: (i) the study was a (cluster-)randomized controlled trial (RCT), and (ii) investigated healthy participants, up to 20 years of age and involved in organized sport, (iii) an intervention arm performing a multimodal IPP was compared to a control arm following a common training regime, and (iv) neuromuscular performance parameters (e...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/29069358/atrial-function-is-altered-in-lone-paroxysmal-atrial-fibrillation-in-male-endurance-veteran-athletes
#11
Arnaud Hubert, Vincent Galand, Erwan Donal, Dominique Pavin, Elena Galli, Raphaël P Martins, Christophe Leclercq, François Carré, Frédéric Schnell
Aims: Intensive endurance sport practice is associated with an increased risk of atrial fibrillation (AF) in male veteran athletes. Paroxysmal AF (PAF) is the very beginning step of this disease. The description of atrial remodelling occurring at this early stage might enable to depict predictive factors of AF in veteran athletes in order to give them personalized recommendation according to their sport practice. Methods and results: Twenty-seven male endurance veteran athletes with documented PAF were retrospectively enrolled and compared with 30 control endurance athletes without documented AF, with similar training level, age, and cardiovascular risk factors...
October 23, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29050661/the-olin-eilobi-breathing-techniques-description-and-initial-case-series-of-novel-respiratory-retraining-strategies-for-athletes-with-exercise-induced-laryngeal-obstruction
#12
Kristina L Johnston, Hannah Bradford, Heather Hodges, Camille M Moore, Emily Nauman, J Tod Olin
INTRODUCTION: Exercise-induced laryngeal obstruction (EILO), the condition previously known as paradoxical vocal fold motion and vocal cord dysfunction, is characterized by inappropriate glottic or supraglottic obstruction during high-intensity exercise, causing exertional dyspnea, frequently with stridor. EILO is definitively diagnosed through upper-airway visualization during a characteristic episode. Although respiratory retraining is a primary therapy for EILO, many patients report symptom persistence despite adequate performance of traditional techniques...
October 11, 2017: Journal of Voice: Official Journal of the Voice Foundation
https://www.readbyqxmd.com/read/29035981/clinical-utility-of-oculomotor-and-electrophysiological-measures-in-identifying-concussion-history
#13
Patrick S Ledwidge, Jessie N Patterson, Dennis L Molfese, Julie A Honaker
OBJECTIVE: To examine whether oculomotor and electrophysiological measures improve the clinical performance of the typical concussion protocol for classifying collegiate athletes with a history of concussion. DESIGN: Cross-sectional. SETTING: University Athletic Medicine and Research Facility. PARTICIPANTS: Forty-five varsity collegiate athletes. INDEPENDENT VARIABLES: Collegiate varsity athletes with or without a history of a diagnosed concussion...
October 10, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035601/skinfold-prediction-equations-fail-to-provide-an-accurate-estimate-of-body-composition-in-elite-rugby-union-athletes-of-caucasian-and-polynesian-ethnicity
#14
Adam Zemski, Elizabeth Broad, Gary Slater
Body composition in elite rugby union athletes is routinely assessed using surface anthropometry, which can be utilised to provide estimates of absolute body composition using regression equations. This study aims to assess the ability of available skinfold equations to estimate body composition in elite rugby union athletes, who have unique physique traits and divergent ethnicity. The development of sport-specific and ethnicity-sensitive equations was also pursued. Forty-three male international Australian rugby union athletes of Caucasian and Polynesian descent underwent surface anthropometry and dual-energy X-ray absorptiometry (DEXA) assessment...
October 16, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29031471/gunslingers-poker-players-and-chickens-3-decision-making-under-mental-performance-pressure-in-junior-elite-athletes
#15
Beth L Parkin, Vincent Walsh
BACKGROUND: Having investigated the decision making of world class elite and subelite athletes (see Parkin and Walsh, 2017; Parkin et al., 2017), here the abilities of those at the earliest stage of entry to elite sport are examined. Junior elite athletes have undergone initial national selection and are younger than athletes examined previously (mean age 13 years). Decision making under mental pressure is explored in this sample. During performance an athlete encounters a wide array of mental pressures; these include the psychological impact of errors, negative feedback, and requirements for sustained attention in a dynamic environment (Anshel and Wells, 2000; Mellalieu et al...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031469/gunslingers-poker-players-and-chickens-2-decision-making-under-physical-performance-pressure-in-subelite-athletes
#16
Beth L Parkin, Vincent Walsh
BACKGROUND: Having investigated the influence of acute physical exhaustion on decision-making in world-class elite athletes in Parkin et al. (2017), here a similar method is applied to subelite athletes. These subelite athletes were enrolled on a Team GB talent development program and were undergoing training for possible Olympic competition in 4-8 years. They differ from elite athletes examined previously according to expertise and age. While considered elite (Swann et al., 2015), the subelite athletes had approximately 8 years fewer sporting experience and were yet to obtain sustained success on the international stage...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29031468/gunslingers-poker-players-and-chickens-1-decision-making-under-physical-performance-pressure-in-elite-athletes
#17
Beth L Parkin, Katie Warriner, Vincent Walsh
BACKGROUND: The cognitive skills required during sport are highly demanding; accurate decisions based on the processing of dynamic environments are made in a fraction of a second (Walsh, 2014). Optimal decision-making abilities are crucial for success in sporting competition (Bar-Eli et al., 2011; Kaya, 2014). Moreover, for the elite athlete, decision making is required under conditions of intense mental and physical pressure (Anshel and Wells, 2000), yet much of the work in this area has largely ignored the highly stressful context in which athletes operate...
2017: Progress in Brain Research
https://www.readbyqxmd.com/read/29028445/return-to-sport-specific-performance-after-primary-anterior-cruciate-ligament-reconstruction-a-systematic-review
#18
Nicholas G Mohtadi, Denise S Chan
BACKGROUND: Physicians counseling athletes on the prognosis of sport-specific performance outcomes after anterior cruciate ligament reconstruction (ACLR) depend on the published literature. However, critical appraisal of the validity and biases in these studies is required to understand how ACLR affects an athlete's ability to return to sport, the athlete's sport-specific performance, and his or her ability to achieve preinjury levels of performance. PURPOSE: This review identifies the published prognostic studies evaluating sport-specific performance outcomes after ACLR...
October 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/29023280/corrective-exercises-improve-movement-efficiency-and-sensorimotor-function-but-not-fatigue-sensitivity-in-chronic-ankle-instability-patients-a-randomized-controlled-trial
#19
Sajad Bagherian, Nader Rahnama, Erik A Wikstrom
OBJECTIVE: To investigate the effect of corrective exercises on functional movement patterns, sensorimotor function, self-reported function, and fatigue sensitivity in collegiate athletes with chronic ankle instability (CAI). DESIGN: A randomized controlled trial. SETTING: Laboratory of sports sciences. PARTICIPANTS: Forty male volunteers were randomly assigned to the experimental group (age 21.2 ± 1.7 years, height 174...
October 6, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29018362/effects-of-unloaded-vs-loaded-plyometrics-on-speed-and-power-performance-of-elite-young-soccer-players
#20
Ronaldo Kobal, Lucas A Pereira, Vinicius Zanetti, Rodrigo Ramirez-Campillo, Irineu Loturco
The purpose of this study was to investigate the effects of loaded and unloaded plyometric training strategies on speed and power performance of elite young soccer players. Twenty-three under-17 male soccer players (age: 15.9 ± 1.2 years, height: 178.3 ± 8.1 cm, body-mass (BM): 68.1 ± 9.3 kg) from the same club took part in this study. The athletes were pair-matched in two training groups: loaded vertical and horizontal jumps using an haltere type handheld with a load of 8% of the athletes' body mass (LJ; n = 12) and unloaded vertical and horizontal plyometrics (UJ; n = 11)...
2017: Frontiers in Physiology
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