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Athletic Ability Assessment

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https://www.readbyqxmd.com/read/28094488/effects-of-leg-contrast-strength-training-on-sprint-agility-and-repeated-change-of-direction-performance-in-male-soccer-players
#1
Mehréz Hammami, Yassine Negra, Roy J Shephard, Mohamed Souhaiel Chelly
BACKGROUND: Contrast training is popular technique among individuals who are involved in dynamic sports, having as its goal an increase in dynamic muscular performance. It is characterized by the use of high and low loads in the same strength training session. The present investigation aimed to determine the effects of adding 8--weeks of contrast strength training (CSTP) to regular soccer practice in U--17 male soccer players during the competitive season. We hypothesized that CSTP would enhance their performance...
January 17, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28090147/regression-shrinkage-and-neural-models-in-predicting-the-results-of-400-metres-hurdles-races
#2
K Przednowek, J Iskra, A Maszczyk, M Nawrocka
This study presents the application of regression shrinkage and artificial neural networks in predicting the results of 400-metres hurdles races. The regression models predict the results for suggested training loads in the selected three-month training period. The material of the research was based on training data of 21 Polish hurdlers from the Polish National Athletics Team Association. The athletes were characterized by a high level of performance. To assess the predictive ability of the constructed models a method of leave-one-out cross-validation was used...
December 2016: Biology of Sport
https://www.readbyqxmd.com/read/28065584/mechanical-dispersion-by-strain-echocardiography-a-novel-tool-to-diagnose-hypertrophic-cardiomyopathy-in-athletes
#3
Frédéric Schnell, David Matelot, Magalie Daudin, Gaelle Kervio, Philippe Mabo, François Carré, Erwan Donal
BACKGROUND: Previous studies have demonstrated that global longitudinal strain (GLS) is altered in patients with hypertrophic cardiomyopathy (HCM) in comparison with athletes. Nevertheless, these results rely on studies comparing sedentary patients with HCM with healthy athletes. The aims of this study were to confirm these findings in an appropriate group of athletes with HCM and to study the additive value of novel parameters (i.e., mechanical dispersion and exercise GLS). METHODS: Thirty-six athletes with HCM were prospectively included and were compared with 36 sedentary patients with HCM, 36 healthy athletes, and 36 sedentary control subjects of similar age...
January 5, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/27991484/relationship-between-the-handball-specific-complex-test-and-intermittent-field-test-performance-in-elite-professional-handball-players
#4
René Schwesig, Souhail Hermassi, Birgit Hoffmeyer, Lars Irlenbusch, Georg Fieseler, Frank Noack, Karl S Delank, Tim J Gabbett, Mohamed S Chelly
BACKGROUND: We investigated the relationship between the handball complex-test (HBCT) and two selected field tests in elite handball players. METHODS: Twenty one handball players (age: 25.2 ± 5.1 years) from the First Professional German League completed; the HBCT performed twice, total distance (TD) covered in the Yo-Yo Intermittent Recovery Test and repeated shuttle sprint ability (RSA) (6 x (15 + 15 m)) starting every 20 s. RSA results were evaluated in three ways: best time (RSAbest), total time (RSATT) and decrement (RSAdec)...
December 16, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27958445/thermography-for-skin-temperature-evaluation-during-dynamic-exercise-a-case-study-on-an-incremental-maximal-test-in-elite-male-cyclists
#5
Nicola Ludwig, Athos Trecroci, Marco Gargano, Damiano Formenti, Andrea Bosio, Ermanno Rampinini, Giampietro Alberti
The use of thermal imaging in monitoring the dynamic of skin temperature during prolonged physical exercise is central to assess athletes' ability to dissipate heat from the skin surface to the environment. In this study, seven elite cyclists completed an incremental maximal cycling test to evaluate their skin temperature response under controlled-environment conditions. Thermal images have been analyzed using a method based on maxima detection (T<sub>max</sub>). Data confirmed a reduction in skin temperature due to vasoconstriction during the exercise, followed by a temperature increment after exhaustion...
December 1, 2016: Applied Optics
https://www.readbyqxmd.com/read/27925640/diagnosis-and-management-of-distal-clavicle-osteolysis
#6
Steven F DeFroda, Christopher Nacca, Gregory R Waryasz, Brett D Owens
Distal clavicle osteolysis is an uncommon condition that most commonly affects weight lifters and other athletes who perform repetitive overhead activity. Although this condition most commonly presents in young active men, it is becoming increasing more common in women with the rise in popularity of body building and extreme athletics. Distal clavicle osteolysis can be debilitating, especially in those with rigorous training regimens, preventing exercise because of pain with activities such as bench presses and chest flies...
December 7, 2016: Orthopedics
https://www.readbyqxmd.com/read/27918654/cold-water-immersion-and-contrast-water-therapy-do-not-improve-short-term-recovery-following-resistance-training
#7
Christos K Argus, James R Broatch, Aaron C Petersen, Remco Polman, David J Bishop, Shona Halson
PURPOSE: An athlete's ability to recover quickly is important when there is limited time between training and competition. As such, recovery strategies are commonly used to expedite the recovery process. The purpose of this study was to determine the effectiveness of both cold water immersion (CWI) and contrast water therapy (CWT) compared to control on short-term recovery (<4h) following a single full-body resistance training session. METHODS: Thirteen males (age, 26 ± 5 years; weight, 79 ± 7 kg; height, 177 ± 5 cm) were assessed for perceptual (fatigue and soreness) and performance measures (maximal voluntary isometric contraction (MVC) of the knee extensors, weighted and unweighted countermovement jumps) prior to and immediately following the training session...
December 5, 2016: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/27912040/patient-reported-outcomes-measurement-information-system-physical-function-item-bank-version-1-0-physical-function-assessment-for-athletic-patient-populations
#8
Leif P Madsen, Todd A Evans, Kelli R Snyder, Carrie L Docherty
CONTEXT: The Patient-Reported Outcomes Measurement Information System (PROMIS) item banks have been validated for general populations, but their application to high-functioning patient populations remains speculative. OBJECTIVE: To examine the measurement properties of the PROMIS physical function item bank, version 1.0, when applied to individuals representing high levels of physical ability. DESIGN: Cross-sectional study. SETTING: National Collegiate Athletic Association Division I and III collegiate athletic training rooms and intramural events...
September 2016: Journal of Athletic Training
https://www.readbyqxmd.com/read/27898852/horse-species-symposium-biomechanics-of-the-exercising-horse
#9
Hilary M Clayton
In spite of having large height and body mass, horses are cursorial animals with an extensive gait repertoire and considerable athletic abilities. The limbs have evolved so that the heavy musculature is confined to the proximal limbs while the distal limbs are light in weight with a single functional digit and long, lightweight tendons to move and support the distal joints. These adaptations reduce the moment of inertia and decrease the energy expended to protract and retract the limbs during locomotion. There is a division of labor between the forelimbs, which have a pillar-like construction specialized for weight bearing, and the hind limbs, in which the more angulated joints provide leverage for the generation of propulsion...
October 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27877150/the-level-of-vision-necessary-for-competitive-performance-in-rifle-shooting-setting-the-standards-for-paralympic-shooting-with-vision-impairment
#10
Peter M Allen, Keziah Latham, David L Mann, Rianne H J C Ravensbergen, Joy Myint
The aim of this study was to investigate the level of vision impairment (VI) that would reduce performance in shooting; to guide development of entry criteria to visually impaired (VI) shooting. Nineteen international-level shooters without VI took part in the study. Participants shot an air rifle, while standing, toward a regulation target placed at the end of a 10 m shooting range. Cambridge simulation glasses were used to simulate six different levels of VI. Visual acuity (VA) and contrast sensitivity (CS) were assessed along with shooting performance in each of seven conditions of simulated impairment and compared to that with habitual vision...
2016: Frontiers in Psychology
https://www.readbyqxmd.com/read/27874301/cognitive-predictors-of-performance-in-well-trained-table-tennis-players-with-intellectual-disability
#11
Debbie Van Biesen, Jennifer Mactavish, Janne Kerremans, Yves C Vanlandewijck
Evidence-based classification systems in Paralympic sport require knowledge of the underlying effect of impairment in a specific sport. This study investigated the relationship between cognition and tactical proficiency in 88 well-trained table tennis players with intellectual disability (ID; 29 women, 59 men, M ± SD IQ 59.9 ± 9.6). Data were collected at 3 competitions sanctioned by the International Federation for Para-Athletes with Intellectual Disabilities (INAS). A generic cognitive test consisting of 8 neuropsychological subtests was used to assess cognitive abilities relevant to sport (reaction time, processing speed, and decision speed; spatial visualization; fluid reasoning; memory; executive functioning; and visual processing)...
October 2016: Adapted Physical Activity Quarterly: APAQ
https://www.readbyqxmd.com/read/27834613/patient-outcomes-utilizing-the-mulligan-concept-of-mwm-to-treat-intercollegiate-patients-diagnosed-with-lateral-ankle-sprain-an-a-priori-case-series
#12
James M May, Alan Nasypany, Julie Paolino, Russell Baker, Jeffrey Seegmiller
CONTEXT: While the incidence and re-injury rates of lateral ankle sprain (LAS) continue to persist at high rates across many sporting activities, further exploration of assessment and treatment beyond the traditional ligamentous and strength/proprioceptive model is warranted. Further, assessing and treating both arthrokinematic and osteokinematic changes associated with LAS can provide insight into a more diverse approach to treating ankle pathology. OBJECTIVE: To examine the clinical use of the Mulligan Concept MWM while treating patients diagnosed with an acute grade I or II LAS through authentic patient care...
November 11, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27834577/the-reliability-and-discriminative-ability-of-the-overhead-squat-test-for-observational-screening-of-medial-knee-displacement
#13
Eric G Post, Matthew Olson, Stephanie Trigsted, Scott Hetzel, David R Bell
CONTEXT: The OHS is a functional screening exam that is used to identify high-risk movement profiles such as medial knee displacement (MKD). The reliability and discriminative ability of observational screening during the OHS to identify MKD have yet to be established. OBJECTIVE: To investigate the reliability and discriminative ability of observational screening for medial knee displacement MKD during the overhead squat (OHS) test. STUDY DESIGN: Clinical measurement, cross sectional...
November 11, 2016: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/27831718/expert-players-accurately-detect-an-opponent-s-movement-intentions-through-sound-alone
#14
Ivan Camponogara, Matthew Rodger, Cathy Craig, Paola Cesari
Sounds offer a rich source of information about events taking place in our physical and social environment. However, outside the domains of speech and music, little is known about whether humans can recognize and act upon the intentions of another agent's actions detected through auditory information alone. In this study we assessed whether intention can be inferred from the sound an action makes, and in turn, whether this information can be used to prospectively guide movement. In 2 experiments experienced and novice basketball players had to virtually intercept an attacker by listening to audio recordings of that player's movements...
November 10, 2016: Journal of Experimental Psychology. Human Perception and Performance
https://www.readbyqxmd.com/read/27825292/long-term-clinical-outcomes-and-factors-that-predict-poor-prognosis-in-athletes-after-a-diagnosis-of-acute-spondylolysis-a-retrospective-review-with-telephone-follow-up
#15
Mitchell Selhorst, Anastasia Fischer, Kristine Graft, Reno Ravindran, Eric Peters, Richard Rodenberg, James MacDonald
Study Design Retrospective review with telephone follow-up. Background Acute spondylolytic injuries have a dramatic impact on the young athlete. Excellent short-term clinical outcomes have been observed, but not enough is known about long-term clinical outcomes. Objectives (1) To report long-term clinical outcomes for patients diagnosed with acute spondylolysis, and (2) to assess the prognostic ability of retrospective variables for long-term outcomes. Methods Patients from 2010 through 2013 were retrospectively reviewed to identify patients and to obtain demographic, baseline, and short-term outcomes...
December 2016: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/27810649/the-influence-of-digital-filter-type-amplitude-normalisation-method-and-co-contraction-algorithm-on-clinically-relevant-surface-electromyography-data-during-clinical-movement-assessments
#16
Daniel Devaprakash, Gillian J Weir, James J Dunne, Jacqueline A Alderson, Cyril J Donnelly
There is a large and growing body of surface electromyography (sEMG) research using laboratory-specific signal processing procedures (i.e., digital filter type and amplitude normalisation protocols) and data analyses methods (i.e., co-contraction algorithms) to acquire practically meaningful information from these data. As a result, the ability to compare sEMG results between studies is, and continues to be challenging. The aim of this study was to determine if digital filter type, amplitude normalisation method, and co-contraction algorithm could influence the practical or clinical interpretation of processed sEMG data...
December 2016: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/27803635/discriminating-talent-identified-junior-australian-footballers-using-a-fundamental-gross-athletic-movement-assessment
#17
Carl T Woods, Harry G Banyard, Ian McKeown, Job Fransen, Sam Robertson
Talent identification (TID) is a pertinent component of the sports sciences, affording practitioners the opportunity to target developmental interventions to a select few; optimising financial investments. However, TID is multi-componential, requiring the recognition of immediate and prospective performance. The measurement of athletic movement skill may afford practitioners insight into the latter component given its augmented relationship with functional sport specific qualities. It is currently unknown whether athletic movement skill is a discriminant quality in junior Australian football (AF)...
September 2016: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/27798634/influence-of-fatigue-on-tackling-ability-in-rugby-league-players-role-of-muscular-strength-endurance-and-aerobic-qualities
#18
Tim J Gabbett
This study investigated the influence of repeated high-intensity effort exercise on tackling ability in rugby league players, and determined the relationship between physical qualities and tackling ability under fatigued conditions in these athletes. Eleven semi-professional rugby league players underwent measurements of speed (10 m and 40 m sprint), upper-body strength (4 repetition maximum [RM] bench press and weighted chin-up), upper-body muscular endurance (body mass maximum repetition chin-up, body mass maximum repetition dips), lower-body strength (4RM squat), and estimated maximal aerobic power (multi-stage fitness test)...
2016: PloS One
https://www.readbyqxmd.com/read/27770784/effects-of-two-neuromuscular-training-programs-on-running-biomechanics-with-load-carriage-a-study-protocol-for-a-randomised-controlled-trial
#19
Bernard X W Liew, Susan Morris, Justin W L Keogh, Brendyn Appleby, Kevin Netto
BACKGROUND: In recent years, athletes have ventured into ultra-endurance and adventure racing events, which tests their ability to race, navigate, and survive. These events often require race participants to carry some form of load, to bear equipment for navigation and survival purposes. Previous studies have reported specific alterations in biomechanics when running with load which potentially influence running performance and injury risk. We hypothesize that a biomechanically informed neuromuscular training program would optimize running mechanics during load carriage to a greater extent than a generic strength training program...
October 22, 2016: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/27757282/the-adolescent-measure-of-confidence-and-musculoskeletal-performance-amcamp-development-and-initial-validation
#20
Keith H May, Andrew A Guccione, Michael C Edwards, Marc S Goldstein
BACKGROUND: Although the relationship of self-efficacy to sports performance is well established, little attention has been paid to self-efficacy in the movements or actions that are required to perform daily activities and prepare the individual to resume sports participation following an injury and associated period of rehabilitation. There are no instruments to measure self-confidence in movement validated in an adolescent population. PURPOSE: The purpose of this paper is to report on the development of the AMCaMP, a self-report measure of confidence in movement and provide some initial evidence to support its use as a measure of confidence in movement...
October 2016: International Journal of Sports Physical Therapy
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