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Long term athlete development

Attila Oláh, Dalma Kellermayer, Csaba Mátyás, Balázs Tamás Németh, Árpád Lux, Lilla Szabó, Marianna Török, Mihály Ruppert, Anna Meltzer, Alex Ali Sayour, Kálmán Benke, István Hartyánszky, Béla Merkely, Tamás Radovits
PURPOSE: Long-term exercise training is associated with characteristic cardiac adaptation, termed athlete's heart. Our research group previously characterized in vivo left ventricular (LV) function of exercise-induced cardiac hypertrophy in detail in a rat model, however the effect of detraining on LV function is still unclear. We aimed at evaluating the reversibility of functional alterations of athlete's heart after detraining. METHODS: Rats (n=16) were divided into detrained exercised (DEx) and detrained control (DCo) groups...
October 14, 2016: Medicine and Science in Sports and Exercise
Chunxiao Li, Chee Keng John Wang, Do Young Pyun
Guided by Deci and Ryan's (2000) self-determination theory, this survey study aimed to examine the effects of the talent development environmental factors on athlete burnout. Talented adolescent athletes (n = 691) filled out a survey form measuring the talent development environmental factors, needs satisfaction and burnout. The findings showed that three talent environmental factors (i.e., long-term development focus, holistic quality preparation and communication) were negative predictors of burnout via needs satisfaction...
October 11, 2016: Journal of Sports Sciences
Damien McKay, Carolyn Broderick, Katharine Steinbeck
With the advent of long term athlete development programs and early sport specialisation, the training of elite athletes now spans the period of adolescence. Adolescence represents a period of physical, psychosocial and cognitive development, but also a time of physical and psychological vulnerability. Changes in skeletal and physiological attributes coincide with an increased risk of sport related injury. A window of vulnerability is shaped by the properties of the musculoskeletal system, the influence of pubertal hormones and the lag time between physical and cognitive development...
October 5, 2016: Pediatric Exercise Science
Pascal Edouard, Emmanuelle Cugy, Romain Dolin, Nicolas Morel, Kathrin Steffen
OBJECTIVE: The incidence of injuries in athletics is important, with consequences at short and long terms in sport, health, social and professional levels. It is therefore important to define strategies to reduce the incidence and severity of injuries in athletics. The objective of this study was to determine whether an injury prevention program (IPP) can reduce the occurrence and/or severity of injuries related to the practice of athletics. MATERIAL AND METHODS: The IPP has been developed, based on current scientific knowledge, targeting exercises on the most common injuries in athletics (hamstring muscle injury, Achilles and patellar tendinopathy, low back pain, ankle sprain) and selecting exercises known to treat and/or prevent these injuries (care stability, hamstrings and leg eccentric muscle strengthening, pelvis balance and stabilizing work)...
September 2016: Annals of Physical and Rehabilitation Medicine
Timothy E Hewett, Gregory D Myer, Kevin R Ford, Mark V Paterno, Carmen E Quatman
Economic and societal pressures influence modern medical practice to develop and implement prevention strategies. Anterior cruciate ligament (ACL) injury devastates the knee joint leading to short term disability and long term sequelae. Due to the high risk of long term osteoarthritis in all treatment populations following ACL injury, prevention is the only effective intervention for this life-altering disruption in knee health. The 'Sequence of Prevention' Model provides a framework to monitor progress towards the ultimate goal of preventing ACL injuries...
September 9, 2016: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
Brian T Kalish, Michael J Whalen
Weight drop models in rodents have been used for several decades to advance our understanding of the pathophysiology of traumatic brain injury. Weight drop models have been used to replicate focal cerebral contusion as well as diffuse brain injury characterized by axonal damage. More recently, closed head injury models with free head rotation have been developed to model sports concussions, which feature functional disturbances in the absence of overt brain damage assessed by conventional imaging techniques...
2016: Methods in Molecular Biology
Christine M Baugh, Emily Kroshus, Patrick T Kiernan, David Mendel, William Meehan
Concussion is increasingly recognized as a risk of participation in contact and collision sports. There have been few examinations of athletes' perceptions of their susceptibility to concussion or concussion-related health consequences. We examine college football players' perceptions of their risk of sustaining a concussion and concussion-related health consequences in their future, whether these perceptions change over time, and how concussion history is related to perceived future risk of concussion and concussion-related health consequences...
August 15, 2016: Journal of Neurotrauma
L Mos, C Fania, F Saladini, A Mazzer, S Cozzio, A Bortolazzi, G Garavelli, E Casiglia, P Palatini
OBJECTIVE: Coffee consumption has been found to predict the risk of cardiovascular events (CVE) in hypertension. Aim of the present study was to ascertain whether the strength of the coffee-CVE association is modulated by regular physical activity. DESIGN AND METHOD: The analysis was made in 1204 participants from the HARVEST, a prospective cohort study of non-diabetic subjects aged 18-45 years, screened for stage 1 hypertension. Among the participants, 26.2% were abstainers, 62...
September 2016: Journal of Hypertension
Nannet Schuring, Haruhito Aoki, Janine Gray, Gino M M J Kerkhoffs, Mike Lambert, Vincent Gouttebarge
PURPOSE: The primary aim was to establish the association between osteoarthritis (OA) and the occurrence and comorbidity of symptoms of common mental disorders (CMD: distress, anxiety/depression, sleep disturbance, adverse alcohol use) in a group of former elite athletes (rugby, football, ice hockey, Gaelic sports and cricket). A secondary aim was to explore this association in the subgroups of sports. METHODS: Cross-sectional analysis was performed on the baseline questionnaires from five prospective cohort studies conducted between April 2014 and January 2016 in former elite athletes of rugby, football, ice hockey, Gaelic sports and cricket...
August 3, 2016: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
Brian L Brooks, Rebekah Mannix, Bruce Maxwell, Ross Zafonte, Paul D Berkner, Grant L Iverson
BACKGROUND: There is increasing concern about the possible long-term effects of multiple concussions, particularly on the developing adolescent brain. Whether the effect of multiple concussions is detectable in high school football players has not been well studied, although the public health implications are great in this population. PURPOSE: To determine if there are measureable differences in cognitive functioning or symptom reporting in high school football players with a history of multiple concussions...
July 29, 2016: American Journal of Sports Medicine
Stéphane Tercier, Boris Gojanovic, Sarah Depallens, Sophie Vust, Emmanuelle Ambresin
Benefits of physical activity during adolescence have widely been demonstrated. Yet, raising awareness among young athletes and their surrounding about risks associated with too early specialization or energy deficit--with or without eating disorder--is of outmost importance. Such behaviours can affect adolescents' physical or psychological development as well as compromise their athletic career not to mention the potential negative impact on their athletic performance. Primary care practitioners play an important role in early detection and prevention of overuse injuries as well as psychological distress associated with intense physical activity...
June 8, 2016: Revue Médicale Suisse
Gwen B Effgen, Barclay Morrison
Clinical studies suggest that athletes with a history of concussion may be at risk for additional mild traumatic brain injury (mTBI), and repetitive exposure to mTBI acutely increases risk for more significant and persistent symptoms and increases future risk for developing neurodegenerative diseases. Currently, symptoms of mTBI are managed with rest and pain medication; there are no drugs approved by the Food and Drug Administration (FDA) that target the biochemical pathology underlying mTBI to treat or prevent acute and long-term effects of repetitive mTBI...
August 8, 2016: Journal of Neurotrauma
Joanne Slater, Rachel Brown, Rebecca McLay-Cooke, Katherine Black
Research on the health of female athletes has developed substantially over the past 50 years. This review aims to provide an overview of this research and identify directions for future work. While early cross-sectional studies focused primarily on menstruation, research has progressed to now encompass hormonal changes, bone health and lipid profiles. The seminal work of Loucks and colleagues distinguished that these health concerns were due to low energy availability (LEA) rather than exercise alone. LEA occurs when the body has insufficient energy available to meet the needs of training and normal physiological functioning...
July 18, 2016: Sports Medicine
Ryu Nagahara, Koji Zushi
BACKGROUND: This study aimed to clarify the changes in stiffness variables when maximal speed sprinting performance was developed through long-term training. METHODS: Nine well-trained male athletes performed maximal effort 60-m sprints before and after the completion of six months of winter training. In both experiments, sprinting motion at maximal speed was recorded with a high-speed camera and simultaneously ground reaction force (GRF) was measured. Spatiotemporal and stiffness variables were then calculated...
July 13, 2016: Journal of Sports Medicine and Physical Fitness
Keisuke Takahata, Hajime Tabuchi, Masaru Mimura
Chronic traumatic encephalopathy (CTE) is a neurodegenerative disease, which is associated with mild repetitive traumatic brain injury (TBI). This long-term and progressive symptom due to TBI was initially called punch-drunk syndrome or dementia pugilistica, since it was believed to be associated with boxing. However, serial neuropathological studies of mild repetitive TBI in the last decade have revealed that CTE occurs not only in boxers but also in a wider population including American football players, wrestlers, and military personnel...
July 2016: Brain and Nerve, Shinkei Kenkyū No Shinpo
Jonathan M Frank, Bryan M Saltzman, Nickolas Garbis, Mark S Cohen
BACKGROUND: Fractures of the capitellum are rare and are commonly classified into 4 types. Type II variants involve a shear injury with a mostly articular cartilage component and little subchondral bone. Symptoms upon presentation after these injuries are variable, and the diagnosis can be difficult to make in the immature skeleton. METHODS: We retrospectively reviewed 3 cases of type II capitellar fractures in adolescent athletes who presented for evaluation with the senior author...
September 2016: Journal of Shoulder and Elbow Surgery
Yuanchao Zhang, Lu Zhao, Wenwei Bi, Yue Wang, Gaoxia Wei, Alan Evans, Tianzi Jiang
During human brain development, cortical gyrification, which is believed to facilitate compact wiring of neural circuits, has been shown to follow an inverted U-shaped curve, coinciding with the two-stage neurodevelopmental process of initial synaptic overproduction with subsequent pruning. This trajectory allows postnatal experiences to refine the wiring, which may manifest as endophenotypic changes in cortical gyrification. Diving experts, typical elite athletes who commence intensive motor training at a very young age in their early childhood, serve ideal models for examining the gyrification changes related to long-term intensive diving training...
2016: Scientific Reports
Urs Granacher, Melanie Lesinski, Dirk Büsch, Thomas Muehlbauer, Olaf Prieske, Christian Puta, Albert Gollhofer, David G Behm
During the stages of long-term athlete development (LTAD), resistance training (RT) is an important means for (i) stimulating athletic development, (ii) tolerating the demands of long-term training and competition, and (iii) inducing long-term health promoting effects that are robust over time and track into adulthood. However, there is a gap in the literature with regards to optimal RT methods during LTAD and how RT is linked to biological age. Thus, the aims of this scoping review were (i) to describe and discuss the effects of RT on muscular fitness and athletic performance in youth athletes, (ii) to introduce a conceptual model on how to appropriately implement different types of RT within LTAD stages, and (iii) to identify research gaps from the existing literature by deducing implications for future research...
2016: Frontiers in Physiology
Günay Eskici
Soccer is one of the most widely played and complex sports in the world, where success depends on technical, tactical and physical skills of the players. Studies to improve performance in soccer have often focused on technique and tactics. However, nutrition is one of the most important factors influencing athletic performance of the players. The duration of matches is long and the training is intense. This leads to increased requirements for energy and nutrients, as well as increased reactive oxygen radicals and hence increased muscle damage...
May 10, 2016: International Journal for Vitamin and Nutrition Research. Journal International de Vitaminologie et de Nutrition
Brian G Pietrosimone, J Troy Blackburn, Yvonne M Golightly, Matthew S Harkey, Brittney A Luc, J D DeFreese, Darin A Padua, Joanne M Jordan, Kim L Bennell
CONTEXT:  Posttraumatic osteoarthritis (PTOA) is a specific phenotype of osteoarthritis (OA) that commonly develops after acute knee injury, such as anterior cruciate ligament (ACL) or meniscal injury (or both). Athletic trainers (ATs) are well positioned to educate patients and begin PTOA management during rehabilitation of the acute injury, yet it remains unknown if ATs currently prioritize long-term outcomes in patients with knee injury. OBJECTIVE:  To investigate ATs' knowledge and perceptions of OA and its treatment after ACL injury, ACL reconstruction, or meniscal injury or surgery...
May 4, 2016: Journal of Athletic Training
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