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https://www.readbyqxmd.com/read/29769834/continuous-knee-cooling-affects-functional-hop-performance-a-randomized-controlled-trial
#1
Bruno Tassignon, Ben Serrien, Kevin De Pauw, Jean-Pierre Baeyens, Romain Meeusen
Cryotherapy is widely used in sports and rehabilitation to aid recovery and injury management. The purpose was to examine if a low temperature computer controlled continuous knee cooling protocol (10°C) for one hour and a moderate continuous knee cooling protocol (18°C) for one hour affected neuromuscular activity and functional performance tests. We used a randomized controlled study design. Twenty healthy male subjects (age = 24 ± 3 years) were included and randomized into 2 groups (10°C and 18°C). On day one, participants performed a maximal voluntary contraction of the quadriceps (MVC), single leg hop for distance (SLHD), and crossover hop for time (COHT) with both legs before and after cooling of their right leg...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29769825/balancing-demands-and-resources-in-sport-adaptation-and-validation-of-the-demand-induced-strain-compensation-questionnaire-for-use-in-sport
#2
Yannick A Balk, Jan De Jonge, Wido G M Oerlemans, Sabine A E Geurts, David Fletcher, Christian Dormann
Too high demands, combined with a lack of resources, are often detrimental to athletic health and well-being. However, a valid and reliable instrument to investigate different dimensions of demands and resources in sport is currently unavailable. Therefore, the present study examines the psychometric properties of an existing and well-validated survey instrument on demands and resources at task-level that was adapted to sport. This instrument, the Demand-Induced Strain Compensation Questionnaire for Sport (DISQ-SPORT), was empirically tested among 1,101 athletes (416 females and 685 males) from a variety of sports and in different languages...
June 2018: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/29755928/the-effects-of-social-support-on-strenuous-physical-exercise
#3
Arran Davis, Emma Cohen
In humans, socio-environmental cues play an important role in determining adaptive psychophysiological states and behaviours. In sport and exercise, cues to cohesive groups and close, supportive relationships are ubiquitous, possibly because of their effects on neurobiological mechanisms underlying physical performance. Clinical research has shown that the presence of supportive others can lead to reductions in perceptions of pain, while research from sport and exercise science has shown that pain and physical fatigue occupy ranges on a single spectrum of physical discomfort, which works to regulate outputs during strenuous physical exertion...
2018: Adaptive Human Behavior and Physiology
https://www.readbyqxmd.com/read/29746803/urine-specific-gravity-as-an-indicator-of-dehydration-in-olympic-combat-sport-athletes-considerations-for-research-and-practice
#4
Damir Zubac, Reid Reale, Hrvoje Karnincic, Anamaria Sivric, Igor Jelaska
Urine specific gravity (USG ) is the most commonly reported biochemical marker used in research and applied settings to detect fluid deficits in athletes, including those participating in combat sports. Despite the popularity of its use, there has been a growing debate regarding the diagnostic accuracy and the applicability of USG in characterizing whole-body fluid status and fluctuations. Moreover, recent investigations report universally high prevalence of hypohydration (∼90%) via USG assessment in combat sport athletes, often in spite of stable body-mass...
May 10, 2018: European Journal of Sport Science
https://www.readbyqxmd.com/read/29742749/the-relationship-between-asymmetry-and-athletic-performance-a-critical-review
#5
Sean J Maloney
Maloney, SJ. The relationship between asymmetry and athletic performance: A critical review. J Strength Cond Res XX(X): 000-000, 2018-Symmetry may be defined as the quality to demonstrate an exact correspondence of size, shape, and form when split along a given axis. Although it has been widely asserted that the bilateral asymmetries are detrimental to athletic performance, research does not wholly support such an association. Moreover, the research rarely seeks to distinguish between different types of bilateral asymmetry...
May 8, 2018: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/29740783/anxiety-in-the-orthopedic-patient-using-promis-to-assess-mental-health
#6
Casey M Beleckas, Heidi Prather, Jason Guattery, Melissa Wright, Michael Kelly, Ryan P Calfee
PURPOSE: This study explored the performance of the Patient-Reported Outcomes Measurement Information System (PROMIS) Anxiety assessment relative to the Depression assessment in orthopedic patients, the relationship between Anxiety with self-reported Physical Function and Pain Interference, and to determine if Anxiety levels varied according to the location of orthopedic conditions. METHODS: This cross-sectional evaluation analyzed 14,962 consecutive adult new-patient visits to a tertiary orthopedic practice between 4/1/2016 and 12/31/2016...
May 8, 2018: Quality of Life Research
https://www.readbyqxmd.com/read/29740341/circulating-mirnas-as-putative-biomarkers-of-exercise-adaptation-in-endurance-horses
#7
Katia Cappelli, Stefano Capomaccio, Andrea Viglino, Maurizio Silvestrelli, Francesca Beccati, Livia Moscati, Elisabetta Chiaradia
Endurance exercise induces metabolic adaptations and has recently been reported associated with the modulation of a particular class of small noncoding RNAs, microRNAs, that act as post-transcriptional regulators of gene expression. Released into body fluids, they termed circulating miRNAs, and they have been recognized as more effective and accurate biomarkers than classical serum markers. This study examined serum profile of miRNAs through massive parallel sequencing in response to prolonged endurance exercise in samples obtained from four competitive Arabian horses before and 2 h after the end of competition...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29736571/clinical-management-in-early-oa
#8
Rita Grazina, Renato Andrade, Ricardo Bastos, Daniela Costa, Rogério Pereira, José Marinhas, António Maestro, João Espregueira-Mendes
Knee osteoarthritis affects an important percentage of the population throughout their life. Several factors seem to be related to the development of knee osteoarthritis including genetic predisposition, gender, age, meniscal deficiency, lower limb malalignments, joint instability, cartilage defects, and increasing sports participation. The latter has contributed to a higher prevalence of early onset of knee osteoarthritis at younger ages with this active population demanding more consistent and durable outcomes...
2018: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/29734063/neuromechanical-adaptations-to-slippery-sport-shoes
#9
Cédric Y M Morio, Alexis Herbaut
Although shoe friction has been widely studied in occupational ergonomics, information was lacking about friction in sport shoes. The purpose of the study was to examine the neuromechanical adaptations to different shoe-surface interface in an aerobic-gym specific movement. Sixteen females performed 10 change of direction movements in two shoe conditions differing by their outsoles (ethyl-vinyl-acetate: EVA and rubber: RB) to ensure significant differences in mechanical coefficients of friction (EVA = 0...
May 4, 2018: Human Movement Science
https://www.readbyqxmd.com/read/29730745/the-heart-of-the-matter-years-saved-from-cardiovascular-and-cancer-deaths-in-an-elite-athlete-cohort-with-over-a-century-of-follow-up
#10
Juliana Antero-Jacquemin, Maja Pohar-Perme, Grégoire Rey, Jean-François Toussaint, Aurélien Latouche
To quantify the years of life saved from cardiovascular (CVD), cancer and overall deaths among elite athletes according to their main type of physiological effort performed in the Olympic Games. All French athletes participating in the Games from 1912 to 2012, with vital status validated and cause of death (if concerned) identified by the national registries were included (n = 2814, 455 died) and classified according to 6 groups of effort: POWER (continuous effort < 45 s); INTERMEDIATE (45 s ≤ continuous effort < 600 s); ENDURANCE (continuous effort ≥ 600 s); POLYVALENT (participating in different events entering different classifications), INTERMITTENT (intermittent effort, i...
May 5, 2018: European Journal of Epidemiology
https://www.readbyqxmd.com/read/29722254/assessing-the-use-of-psychological-skills-by-sports-category-and-the-relation-with-sports-performance-satisfaction
#11
David Tomé-Lourido, Constantino Arce, Ángel Vales-Vázquez, Dolores Ponte
BACKGROUND: The evaluation of psychological skills by athletes and their relationship with sports performance and satisfaction has been of great interest in recent decades. Likewise, there has been an emergent tendency to focus on developing specific psychological skills for each sport. The principal aim of this study was to determine the frequency with which athletes deploy psychological skills whilst competing and whether their frequency varies in accordance with the technical, tactical and physical characteristics of the sport in question...
May 2, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29721459/differences-between-the-sexes-in-athletes-body-composition-and-lower-limb-bioimpedance-values
#12
Gabriele Mascherini, Jorge Castizo-Olier, Alfredo Irurtia, Cristian Petri, Giorgio Galanti
Introduction: The differences between the sexes in body composition are well established, although sports activity at an elite level seems to reduce them. The aim of this study is a comparison of the sexes in terms of athletes' body composition with a three-compartment model and a localized bioimpedance analysis in elite soccer players. Methods: 18 female and 18 male elite soccer players of the same age were matched (female=26.2±2.4, male 26.9±2.5; p=0.87). An assessment of body composition was performed through the integration of anthropometrics parameters, skinfold thickness and bioimpedance data...
October 2017: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/29720949/active-recovery-after-high-intensity-interval-training-does-not-attenuate-training-adaptation
#13
Thimo Wiewelhove, Christoph Schneider, Alina Schmidt, Alexander Döweling, Tim Meyer, Michael Kellmann, Mark Pfeiffer, Alexander Ferrauti
Objective: High-intensity interval training (HIIT) can be extremely demanding and can consequently produce high blood lactate levels. Previous studies have shown that lactate is a potent metabolic stimulus, which is important for adaptation. Active recovery (ACT) after intensive exercise, however, enhances blood lactate removal in comparison with passive recovery (PAS) and, consequently, may attenuate endurance performance improvements. Therefore, the aim of this study was to examine the influence of regular ACT on training adaptations during a HIIT mesocycle...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29705065/anticipation-of-a-mentally-effortful-task-recruits-dorsolateral-prefrontal-cortex-an-fnirs-validation-study
#14
Eliana Vassena, Robin Gerrits, Jelle Demanet, Tom Verguts, Roma Siugzdaite
Preparing for a mentally demanding task calls upon cognitive and motivational resources. The underlying neural implementation of these mechanisms is receiving growing attention because of its implications for professional, social, and medical contexts. While several fMRI studies converge in assigning a crucial role to a cortico-subcortical network including Anterior Cigulate Cortex (ACC) and striatum, the involvement of Dorsolateral Prefrontal Cortex (DLPFC) during mental effort anticipation has yet to be replicated...
April 26, 2018: Neuropsychologia
https://www.readbyqxmd.com/read/29703124/diagnostic-accuracy-of-a-self-report-measure-of-patellar-tendinopathy-in-youth-basketball
#15
Oluwatoyosi B A Owoeye, J Preston Wiley, Richard E A Walker, Luz Palacios-Derflingher, Carolyn A Emery
Study Design Prospective diagnostic accuracy validation study. Background Engaging clinicians for diagnosis of patellar tendinopathy in large surveillance studies is often impracticable. A self-report measure, the Oslo Sports Research Trauma Centre patellar tendinopathy (OSTRC-P) Questionnaire, an adaptation of the OSTRC Questionnaire may provide a viable alternative. Objectives To evaluate the diagnostic accuracy of the OSTRC-P Questionnaire in detecting patellar tendinopathy in youth basketball players when compared to clinical evaluation...
April 27, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29698877/higher-torque-and-muscle-fibre-conduction-velocity-of-the-biceps-brachii-in-karate-practitioners-during-isokinetic-contractions
#16
Federico Quinzi, Andrea Bianchetti, Francesco Felici, Paola Sbriccoli
PURPOSE: Although upper limb techniques are largely utilized during karate combat competitions scarce information regarding their NM control is available. This study aims at investigating the effect of karate practice on the NM control of Biceps and Triceps Brachii during isokinetic contractions to enhance current knowledge on neuromuscular control adaptations and training methodologies in combat sports. METHODS: Torque and surface electromyograms (sEMG) of Biceps Brachii Caput Longum (BB) and Triceps Brachii Lateral Head (TB) were recorded in eight karate practitioners (KA) and eight age-matched sedentary individuals (CO) during isokinetic elbow flexion-extensions (0-240°/s-1 )...
April 17, 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29690827/cross-cultural-adaptation-and-measurement-properties-of-the-brazilian-portuguese-version-of-the-victorian-institute-of-sport-assessment-achilles-visa-a-questionnaire
#17
Gabriel Nunes de Mesquita, Marcela Nicácio Medeiros de Oliveira, Amanda Ellen Rodrigues Matoso, Alberto Galvão de Moura Filho, Rodrigo Ribeiro de Oliveira
Study Design Clinical measurement study. Background Achilles tendon disorders are very common among athletes and it is important to objectively measure symptoms and functional limitations related to Achilles tendinopathy using outcome measures that have been validated in the language of the target population. Objectives To perform a cross-cultural adaptation and to evaluate the measurement properties of the Brazilian version of the Victorian Institute of Sport Assessment-Achilles (VISA-A) questionnaire. Methods We adapted the VISA-A questionnaire to Brazilian Portuguese (VISA-A-Br)...
April 24, 2018: Journal of Orthopaedic and Sports Physical Therapy
https://www.readbyqxmd.com/read/29671383/sport-specific-biomechanical-responses-to-an-acl-injury-prevention-programme-a-randomised-controlled-trial
#18
Jeffrey B Taylor, Kevin R Ford, Randy J Schmitz, Scott E Ross, Terry A Ackerman, Sandra J Shultz
Anterior cruciate ligament (ACL) injury prevention programmes have not been as successful at reducing injury rates in women's basketball as in soccer. This randomised controlled trial (ClinicalTrials.gov #NCT02530333) compared biomechanical adaptations in basketball and soccer players during jump-landing activities after an ACL injury prevention programme. Eighty-seven athletes were cluster randomised into intervention (6-week programme) and control groups. Three-dimensional biomechanical analyses of drop vertical jump (DVJ), double- (SAG-DL) and single-leg (SAG-SL) sagittal, and double- (FRONT-DL) and single-leg (FRONT-SL) frontal plane jump landing tasks were tested before and after the intervention...
April 19, 2018: Journal of Sports Sciences
https://www.readbyqxmd.com/read/29666559/assessing-performance-in-pre-season-wrestling-athletes-using-biomarkers
#19
Ionas Papassotiriou, Artemissia-Phoebe Nifli
Introduction: Although regular training introduces the desired changes in athletes' metabolism towards optimal final performance, literature is rarely focusing on the metabolic responses off-competition. Therefore, the aim of this study was to evaluate biochemical indices during typical preseason training in wrestling athletes. Materials and methods: Twenty male freestyle and Greco-roman wrestlers (14 to 31 years) followed a typical session of the preparatory phase...
June 15, 2018: Biochemia Medica: časopis Hrvatskoga Društva Medicinskih Biokemičara
https://www.readbyqxmd.com/read/29663142/do-we-need-a-cool-down-after-exercise-a-narrative-review-of-the-psychophysiological-effects-and-the-effects-on-performance-injuries-and-the-long-term-adaptive-response
#20
REVIEW
Bas Van Hooren, Jonathan M Peake
It is widely believed that an active cool-down is more effective for promoting post-exercise recovery than a passive cool-down involving no activity. However, research on this topic has never been synthesized and it therefore remains largely unknown whether this belief is correct. This review compares the effects of various types of active cool-downs with passive cool-downs on sports performance, injuries, long-term adaptive responses, and psychophysiological markers of post-exercise recovery. An active cool-down is largely ineffective with respect to enhancing same-day and next-day(s) sports performance, but some beneficial effects on next-day(s) performance have been reported...
April 16, 2018: Sports Medicine
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