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Adolescent athletes

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https://www.readbyqxmd.com/read/28630569/leadership-preferences-of-adolescent-players-in-sport-influence-of-coach-gender
#1
Angelita B Cruz, Hyun-Duck Kim
The authors investigated the coaching behavior preferences and the relationships of these preferences with variables such as gender, type of sport, playing experience, competitive level, and coach gender among young athletes in the national badminton league. Participants were 167 elementary and high school badminton players (91 girls and 76 boys; age range = 9-18 years; M = 13.5 (SD = 2.22) years) competing in the badminton event of a national league. Players' preferences for coaching behavior were measured using athlete preference version of the LSS to evaluate the five dimensions of leadership behavior in a sporting context...
June 2017: Journal of Sports Science & Medicine
https://www.readbyqxmd.com/read/28627289/snap-n-send-a-valid-and-reliable-method-for-assessing-the-energy-intake-of-elite-adolescent-athletes
#2
Nessan Costello, Kevin Deighton, Joshua Dyson, Jim Mckenna, Ben Jones
To ensure that elite adolescent athletes meet their unique training, growth and maturation demands, it is imperative to have access to valid measures of energy intake. Contemporary methods demand close attention-to-detail, meaning that athletes often do not fully adhere to real-time protocols. This study represents the first investigation of a real-time dietary assessment designed using a comprehensive behaviour change framework (COM-B). In a crossover design, 12 elite adolescent male rugby players recorded their energy intake via an estimated food diary (est-FD) and photography-based mobile assessment ('Snap-n-Send'), combined with a 24-h dietary recall interview...
June 17, 2017: European Journal of Sport Science
https://www.readbyqxmd.com/read/28624016/longitudinal-change-in-patellofemoral-cartilage-thickness-cartilage-t2-relaxation-times-and-subchondral-bone-plate-area-in-adolescent-vs-mature-athletes
#3
Adam G Culvenor, Wolfgang Wirth, Susanne Maschek, Heide Boeth, Gerd Diederichs, Georg Duda, Felix Eckstein
OBJECTIVE: Patellofemoral cartilage changes have been evaluated in knee trauma and osteoarthritis; however, little is known about changes in patellar and trochlear cartilage thickness, T2 relaxation-time and subchondral bone plate area (tAB) during growth. Our prospective study aimed to explore longitudinal change in patellofemoral cartilage thickness, T2 and tAB in adolescent athletes, and to compare these data with those of mature (i.e., adult) athletes. MATERIALS AND METHODS: 20 adolescent (age 16±1years) and 20 mature (46±5years) volleyball players were studied over 2-years (10 men and 10 women each group)...
July 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28615996/international-society-of-sports-nutrition-position-stand-safety-and-efficacy-of-creatine-supplementation-in-exercise-sport-and-medicine
#4
REVIEW
Richard B Kreider, Douglas S Kalman, Jose Antonio, Tim N Ziegenfuss, Robert Wildman, Rick Collins, Darren G Candow, Susan M Kleiner, Anthony L Almada, Hector L Lopez
Creatine is one of the most popular nutritional ergogenic aids for athletes. Studies have consistently shown that creatine supplementation increases intramuscular creatine concentrations which may help explain the observed improvements in high intensity exercise performance leading to greater training adaptations. In addition to athletic and exercise improvement, research has shown that creatine supplementation may enhance post-exercise recovery, injury prevention, thermoregulation, rehabilitation, and concussion and/or spinal cord neuroprotection...
2017: Journal of the International Society of Sports Nutrition
https://www.readbyqxmd.com/read/28605209/pacing-and-self-regulation-important-skills-for-talent-development-in-endurance-sports
#5
Marije T Elferink-Gemser, Florentina J Hettinga
Pacing has been characterized as a multi-faceted goal-directed process of decision-making in which athletes need to decide how and when to invest their energy during the race, a process essential for optimal performance. Both physiological as well as psychological characteristics associated with adequate pacing and performance are known to develop with age. Consequently, the multi-faceted skill of pacing might be under construction throughout adolescence as well. Therefore, we propose that the complex skill of pacing is a potential important performance characteristic for talented youth athletes, that needs to be developed throughout adolescence...
June 12, 2017: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/28603569/pediatric-acl-injuries-a-review-of-current-concepts
#6
Vikas Trivedi, Panna Mishra, Deepankar Verma
BACKGROUND: The number of anterior cruciate ligament (ACL) injuries reported in skeletally immature athletes has increased over the past 2 decades. The reasons for this increased rate include the growing number of children and adolescents participating in competitive sports vigorous sports training at an earlier age and greater rate of diagnosis because of increased awareness and greater use of advanced medical imaging. There is a growing need for a consensus and evidence based approach for management of these injuries to frame a dedicated age specific treatment strategy...
2017: Open Orthopaedics Journal
https://www.readbyqxmd.com/read/28601167/evaluation-of-a-theory-based-intervention-aimed-at-reducing-intention-to-use-restrictive-dietary-behaviors-among-adolescent-female-athletes
#7
Catherine Laramée, Vicky Drapeau, Pierre Valois, Claude Goulet, Raphaëlle Jacob, Véronique Provencher, Benoît Lamarche
OBJECTIVE: To evaluate the effectiveness of a theory-based intervention to reduce the intention to use restrictive dietary behaviors for losing weight among adolescent female athletes involved in aesthetic sports. DESIGN: Cluster-randomized controlled trial. SETTING: Aesthetic sport teams of adolescent female athletes aged 12-17 years. PARTICIPANTS: Two teams (n = 37 athletes) in the intervention group and 3 teams (n = 33) in the comparison group...
June 2017: Journal of Nutrition Education and Behavior
https://www.readbyqxmd.com/read/28594517/adolescent-spondylolysis-management-and-return-to-play
#8
William C Warner, Rodrigo Góes Medéa de Mendonça
The most common causes of low back pain in adolescents are spondylolysis and spondylolisthesis. Mechanical factors combined with rapid growth during adolescence place stress on the spine and can result in a stress fracture. Sports that require athletes to repeatedly place the spine in hyperextension may exacerbate both spondylolysis and spondylolisthesis. Many adolescent athletes with spondylolysis or low-grade spondylolisthesis have minimal symptoms and require no treatment or alteration in activity, including sports activity...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28594516/lumbar-spine-injuries-in-the-athlete
#9
Dustin H Massel, Kern Singh
Low back pain is the most common complaint expressed by adult patients in the primary care setting, and the incidence of low back pain in adolescents is rising. Adolescents who are involved in athletics most commonly suffer from spondylolysis, spondylolisthesis, mechanical low back pain, and herniated disks, whereas adult athletes most commonly suffer from lumbosacral strain and herniated or degenerative disks. Initial nonsurgical management aims to reduce inflammation and noninvasively strengthen damaged tissues...
February 15, 2017: Instructional Course Lectures
https://www.readbyqxmd.com/read/28590374/return-to-sport-after-pediatric-anterior-cruciate-ligament-reconstruction-and-its-effect-on-subsequent-anterior-cruciate-ligament-injury
#10
Travis J Dekker, Jonathan A Godin, Kevin M Dale, William E Garrett, Dean C Taylor, Jonathan C Riboh
BACKGROUND: Anterior cruciate ligament (ACL) graft failure and contralateral ACL tears are more frequent in children and adolescents than adults. The reasons for higher subsequent injury rates in this population are incompletely understood. METHODS: We analyzed a continuous cohort of patients who were <18 years of age. Subjects underwent isolated, primary ACL reconstruction with autograft between 2006 and January 1, 2014, and had a minimum 2-year follow-up. Return-to-sport characteristics were described, and multivariable Cox regression modeling was used to identify predictors of a second ACL injury...
June 7, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28580897/the-spanish-version-of-the-subjective-vitality-scale-psychometric-properties-and-evidence-of-validity
#11
Isabel Castillo, Inés Tomás, Isabel Balaguer
The Subjective Vitality Scale (SVS) assess the subjective experience of being full of energy and alive, a clinically relevant outcome measure of positive psychological well-being. The purpose of this paper was to translate the 7-item SVS into Spanish and examine its psychometric properties. In Study 1 (n = 790 adolescents) and Study 2 (n = 130 athletes) reliability and exploratory factor analysis (EFA) were carried out. In Study 1 and Study 3 (n = 197 dancers) evidence of validity of inferences based on SVS scores estimating relationships with other variables (life satisfaction, global self-esteem and emotional and physical exhaustion) was obtained...
June 5, 2017: Spanish Journal of Psychology
https://www.readbyqxmd.com/read/28574940/management-of-lumbar-conditions-in-the-elite-athlete
#12
Wellington K Hsu, Tyler James Jenkins
Lumbar disk herniation, degenerative disk disease, and spondylolysis are the most prevalent lumbar conditions that result in missed playing time. Lumbar disk herniation has a good prognosis. After recovery from injury, professional athletes return to play 82% of the time. Surgical management of lumbar disk herniation has been shown to be a viable option in athletes in whom nonsurgical measures have failed. Degenerative disk disease is predominately genetic but may be accelerated in athletes secondary to increased physiologic loading...
June 1, 2017: Journal of the American Academy of Orthopaedic Surgeons
https://www.readbyqxmd.com/read/28574282/prevention-of-sudden-death-in-adolescent-athletes-incremental-diagnostic-value-and-cost-effectiveness-of-diagnostic-tests
#13
Gonzalo Grazioli, Maria Sanz de la Garza, Barbara Vidal, Silvia Montserrat, Georgia Sarquella-Brugada, Ramon Pi, Lluis Til, Josep Gutierrez, Josep Brugada, Marta Sitges
Introduction Pre-participation screening in athletes attempts to reduce the incidence of sudden death during sports by identifying susceptible individuals. The objective of this study was to evaluate the diagnostic capacity of the different pre-participation screening points in adolescent athletes and the cost effectiveness of the programme. Methods Athletes were studied between 12-18 years old. Pre-participation screening included the American Heart Association questionnaire, electrocardiogram, echocardiogram, and stress test...
January 1, 2017: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/28572775/perceptions-of-the-coach-athlete-relationship-predict-the-attainment-of-mastery-achievement-goals-six-months-later-a-two-wave-longitudinal-study-among-f-a-premier-league-academy-soccer-players
#14
Adam R Nicholls, Keith Earle, Fiona Earle, Daniel J Madigan
All football teams that compete within the F. A. Premier League possess an academy, whose objective is to produce more and better home-grown players that are capable of playing professionally. These young players spend a large amount of time with their coach, but little is known about player's perception of the coach-athlete relationship within F. A. Premier League Academies. The objectives of this study were to examine whether perceptions of the coach-athlete relationship changed over six months and if the coach-athlete relationship predicted self-reported goal achievement among F...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28570489/possible-hormone-predictors-of-physical-performance-in-adolescent-team-sport-athletes
#15
Alanna C Martin, Ian T Heazlewood, Cecilia M Kitic, Isabelle Lys, Liam Johnson
The research aim of this study was to determine possible hormone predictors of physical performance in adolescent team sport athletes. Saliva samples were collected immediately prior to performance testing sessions from 114 state squad athletes (77 male, 37 female) participating in either Australian football, basketball, hockey, or netball. Participants completed tests of aerobic and anaerobic capacity, agility, power and speed. Samples were collected over 22 months at quarterly, six-monthly and/or yearly intervals depending on the testing schedule of the athlete...
May 30, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28566804/reticulocyte-and-erythrocyte-hypochromia-markers-in-detection-of-iron-deficiency-in-adolescent-female-athletes
#16
J Malczewska-Lenczowska, J Orysiak, B Szczepańska, D Turowski, K Burkhard-Jagodzińska, J Gajewski
The aim of this study was to analyse the effectiveness of new haematology parameters related to reticulocytes and mature red blood cells to differentiate pre latent and latent iron deficiency. The study included 219 female athletes (aged 15-20 years) representing volleyball, handball, cycling, canoeing, cross-country skiing, swimming and judo. To assess iron status the concentration of ferritin, soluble transferrin receptor (sTfR), iron and total iron binding capacity (TIBC) were determined in serum. In addition to blood morphology, the mean cellular haemoglobin content in erythrocytes (CH) and reticulocytes (CHr), mean cellular haemoglobin concentration in reticulocytes (CHCMr), the percentage of erythrocytes (HYPOm) and reticulocytes (HYPOr) with decreased cellular haemoglobin concentration, the percentage of erythrocytes (LowCHm) and reticulocytes (LowCHr) with decreased cellular haemoglobin content, and percentage of erythrocytes with decreased volume (MICROm) were determined...
June 2017: Biology of Sport
https://www.readbyqxmd.com/read/28560548/media-use-sports-activities-and-motor-fitness-in-childhood-and-adolescence
#17
Sebastian Kaiser-Jovy, Anja Scheu, Klaus Greier
BACKGROUND: Physical activity is one of the key determinants of physical, mental, and social health of children and adolescents. Therefore, the early development of health-relevant behavior patterns is of high relevance. AIM: To examine the impact of selected socioeconomic factors as well as media consumption, on sports activities and the motor skills of 10- to 14-year-old secondary school students. METHODS: Body height and body weight were measured...
May 30, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28558548/the-spanish-adaptation-of-the-sport-motivation-scale-ii-in-adolescent-athletes
#18
Jesús Viciana, Daniel Mayorga-Vega, Santiago Guijarro-Romero, Alejandro Martínez-Baena, Humberto Blanco
The aim of this study was to adapt and validate the Spanish version of the Sport Motivation Scale-II (S-SMS-II) in adolescent athletes. The sample included 766 Spanish adolescents (263 females and 503 males; average age = 13.71 ± 1.30 years old). The methodological steps established by the International Test Commission were followed. Four measurement models were compared employing the maximum likelihood estimation (with six, five, three, and two factors). Then, factorial invariance analyses were conducted and the effect sizes were calculated...
January 1, 2017: Psychological Reports
https://www.readbyqxmd.com/read/28542108/contralateral-spondylolysis-and-fracture-of-the-lumbar-pedicle-in-a-young-athlete
#19
Eran Kessous, Tracy Borsinger, Ayesha Rahman, Pierre A d'Hemecourt
STUDY DESIGN: Clinical case report of unilateral pedicular stress fracture with a contralateral spondylolysis in a male high school athlete presenting with low back pain. OBJECTIVES: To report this uncommon cause of low back pain in an adolescent athlete, and review the relevant literature. SUMMARY AND BACKGROUND DATA: The incidence of spondylolysis in the caucasian population was found to be about 3-6%. This number is probably higher in the athletic adolescent age group, with reports ranging from 8-15%...
May 24, 2017: Spine
https://www.readbyqxmd.com/read/28538496/committee-opinion-no-702-female-athlete-triad
#20
(no author information available yet)
The female athlete triad is a medical condition observed in physically active females involving three components: 1) low energy availability with or without disordered eating, 2) menstrual dysfunction, and 3) low bone density. An individual does not need to show clinical manifestations of all three components of the female athlete triad simultaneously to be affected by the condition. Consequences of these clinical conditions may not be completely reversible, so prevention, early diagnosis, and intervention are critical...
June 2017: Obstetrics and Gynecology
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