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https://www.readbyqxmd.com/read/29908066/validity-of-hip-worn-inertial-measurement-unit-compared-to-jump-mat-for-jump-height-measurement-in-adolescents
#1
T Rantalainen, K D Hesketh, C Rodda, R L Duckham
Jump tests assess lower body power production capacity, and can be used to evaluate athletic ability and development during growth. Wearable inertial measurement units (IMU) seem to offer a feasible alternative to laboratory-based equipment for jump height assessments. Concurrent validity of these devices for jump height assessments has only been established in adults. Therefore, the purpose of this study was to evaluate the concurrent validity of IMU-based jump height estimate compared to contact mat-based jump height estimate in adolescents...
June 16, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29900610/self-competence-and-depressive-symptoms-in-middle-late-adolescence-disentangling-the-direction-of-effect
#2
Christine McCauley Ohannessian, Anna Vannucci, Courtney R Lincoln, Kaitlin M Flannery, Ashley Trinh
This study examined the temporal relation between self-competence (academic, social, athletic, physical appearance, and close friend) and depressive symptoms in a large, diverse community sample of 636 adolescents. Surveys were administered to all 10th- and 11th-grade students at participating high schools at baseline (mean age = 16.10, SD = .71) and 1 year later. Girls reported higher levels of self-competence in close friendships and more depressive symptoms, whereas boys reported higher levels of self-competence in athletics and physical appearance...
June 13, 2018: Journal of Research on Adolescence: the Official Journal of the Society for Research on Adolescence
https://www.readbyqxmd.com/read/29893599/effects-of-a-short-daytime-nap-on-shooting-and-sprint-performance-in-high-level-adolescent-athletes
#3
Haresh T Suppiah, Low Chee Yong, Gabriel Choong, Michael Chia
PURPOSE: The purpose of the research was to investigate the sport-specific performance effect of a brief afternoon nap on high-level Asian adolescent student-athletes that were habitually short sleepers. METHODS: In the studies, participants were randomly assigned to a nap or non-nap (reading) condition. In the first study, 12 male shooters (13.8 ± 1.0 yrs) performed a shooting assessment (20 competition shots) with heart rate variability monitored during the assessment...
June 12, 2018: International Journal of Sports Physiology and Performance
https://www.readbyqxmd.com/read/29889565/the-food-addiction-construct-may-do-more-harm-than-good-weight-controllers-are-athletes-not-addicts
#4
Daniel S Kirschenbaum, Ross Krawczyk
Food addiction has become a popular notion in the media and scientific community, with many proposing that an addiction to food causes obesity. An article published in this journal in December 2017 by Tompkins et al. asserted that food addiction poses a barrier to the treatment of adolescent obesity. This review questions some of the methods, results, and perspectives offered by Tompkins et al. It also considers the extant evidence overall about this construct. The data about food addiction provide minimal support for the discriminant validity of this conceptualization relative to depressed binge eating...
May 2018: Childhood Obesity
https://www.readbyqxmd.com/read/29888638/strength-and-conditioning-in-adolescent-female-athletes
#5
Corinne Sommi, Frances Gill, Jeffrey D Trojan, Mary K Mulcahey
OBJECTIVES: Despite evidence that strength and conditioning (S&C) programs decrease injury risk and increase sport performance, young females are rarely offered S&C programs comparable to those of their male counterparts. The purpose of this study was to evaluate the current body of available literature regarding S&C in adolescent female athletes, describe potential benefits, and generate recommendations for S&C programs for female adolescent athletes. METHODS: The systematic review was performed in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines...
June 9, 2018: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/29877677/a-systematic-review-on-posterior-circumflex-humeral-artery-pathology-sports-and-professions-at-risk-and-associated-risk-factors
#6
Rik B Kraan, Lisa Beers, Daan van de Pol, Joost G Daams, Mario Maas, P Paul Kuijer
INTRODUCTION: Posterior circumflex humeral artery (PCHA) aneurysm formation and thrombosis as overuse injury in the dominant shoulder can result in ischemia of the forearm, hand and digits due to arterial embolisms. Increased awareness among physicians is necessary as PCHA pathology (PCHAP) might be underdiagnosed. Knowledge of sports and professions at risk and risk-factors for obtaining PCHAP is essential for the development of future preventive measures. This study aims to identify sports and professions at risk as well as risk factors for PCHAP...
June 7, 2018: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/29876862/earlier-anterior-cruciate-ligament-reconstruction-is-associated-with-a-decreased-risk-of-medial-meniscal-and-articular-cartilage-damage-in-children-and-adolescents-a-systematic-review-and-meta-analysis
#7
REVIEW
Jeffrey Kay, Muzammil Memon, Ajay Shah, Yi-Meng Yen, Kristian Samuelsson, Devin Peterson, Nicole Simunovic, Helene Flageole, Olufemi R Ayeni
PURPOSE: To evaluate the association between surgical timing and the incidence of secondary meniscal or chondral damage in children and adolescents with anterior cruciate ligament (ACL) ruptures. METHODS: Three electronic databases, PubMed, MEDLINE, and EMBASE, were systematically searched from database inception until October 16, 2017 by two reviewers independently and in duplicate. The inclusion criteria were English language studies that reported the incidence of meniscal and articular cartilage damage in children or adolescent athletes with ACL injuries as well as the timing of their ACL reconstruction (ACLR)...
June 6, 2018: Knee Surgery, Sports Traumatology, Arthroscopy: Official Journal of the ESSKA
https://www.readbyqxmd.com/read/29870454/borrowing-ribs-to-treat-the-elbow-what-s-the-rub-commentary-on-an-article-by-kazuki-sato-md-phd-et-al-costal-osteochondral-autograft-for-advanced-osteochondritis-dissecans-of-the-humeral-capitellum-in-adolescent-and-young-adult-athletes-clinical-outcomes-with
#8
https://www.readbyqxmd.com/read/29870440/costal-osteochondral-autograft-for-advanced-osteochondritis-dissecans-of-the-humeral-capitellum-in-adolescent-and-young-adult-athletes-clinical-outcomes-with-a-mean-follow-up-of-4-8-years
#9
Kazuki Sato, Takuji Iwamoto, Noboru Matsumura, Taku Suzuki, Yuji Nishiwaki, Yoshinori Oka, Toshiyasu Nakamura
BACKGROUND: Costal osteochondral grafting is a technique to achieve anatomical and biological repair of articular defects. Some small series of clinical applications of this procedure for advanced osteochondritis dissecans of the humeral capitellum, with short-term follow-up, have been reported; however, longer-term outcomes remain unclear. The purpose of this study was to clarify longer-term clinical outcomes of costal osteochondral autografts in the treatment of advanced osteochondritis dissecans of the humeral capitellum...
June 6, 2018: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/29867521/muscle-activation-during-acl-injury-risk-movements-in-young-female-athletes-a-narrative-review
#10
REVIEW
Jesper Bencke, Per Aagaard, Mette K Zebis
Young, adolescent female athletes are at particular high risk of sustaining a non-contact anterior cruciate ligament (ACL) injury during sport. Through the last decades much attention has been directed toward various anatomical and biomechanical risk factors for non-contact ACL injury, and important information have been retrieved about the influence of external loading factors on ACL injury risk during given sports-specific movements. However, much less attention has been given to the aspect of neuromuscular control during such movements and only sparse knowledge exists on the specific muscle activation patterns involved during specific risk conditions...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29863613/the-association-between-length-of-recovery-following-sport-related-concussion-and-generic-and-specific-health-related-quality-of-life-in-adolescent-athletes-a-prospective-longitudinal-study
#11
Tamara Valovich McLeod, R Curtis Bay, Kenneth C Lam, Alison R Snyder Valier
OBJECTIVE: Our purpose was to determine the association between concussion recovery and health-related quality of life (HRQOL). SETTING: Secondary school athletic training facilities. PARTICIPANTS: Patients (N = 122) with a concussion. STUDY DESIGN: Prospective, longitudinal cohort. MAIN MEASURES: The Pediatric Quality-of-Life Inventory (PedsQL), PedsQL Multidimensional Fatigue Scale (MFS), and Headache Impact Test-6 (HIT-6) were completed at preseason and days 3 (D3), 10 (D10), and 30 (D30) postconcussion...
May 31, 2018: Journal of Head Trauma Rehabilitation
https://www.readbyqxmd.com/read/29862593/quantifying-proximal-patellar-tendon-changes-during-adolescence-in-elite-ballet-dancers-a-2-year-study
#12
Aliza Rudavsky, Jillianne Cook, Sean Docking
PURPOSE: Patellar tendon pathology appears to develop in young athletes. It is not known how this tendon develops through adolescence. This longitudinal study investigated proximal patellar tendon development during the adolescent growth spurt in young ballet dancers, and identified if puberty (estimated by maturity offset) had an effect on tendon development. METHODS: 52 dancers (32 female and 20 male dancers, ages 11-18 at baseline) had ultrasound images of their tendons every 6 months for 2 years...
June 4, 2018: Scandinavian Journal of Medicine & Science in Sports
https://www.readbyqxmd.com/read/29847160/clinical-outcome-measures-and-return-to-sport-timing-in-adolescent-athletes-after-anterior-cruciate-ligament-acl-reconstruction
#13
Julie P Burland, Regina O Kostyun, Kyle J Kostyun, Matthew Solomito, Carl Nissen, Matthew D Milewski
CONTEXT:   Multiple factors are likely associated with an adolescent athlete's ability to return to play after anterior cruciate ligament (ACL) reconstruction (ACLR). OBJECTIVE:   To investigate the relationship between self-reported and functional outcome measures on return-to-play timing in an adolescent population, in athletes who returned and those who did not return to sport, and to identify a cutoff value for isometric quadriceps strength that could serve as a clinical target for maximizing the odds of returning to play after ACLR...
May 30, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29846091/melatonin-ingestion-after-exhaustive-late-evening-exercise-improves-sleep-quality-and-quantity-and-short-term-performances-in-teenage-athletes
#14
Mohamed Cheikh, Omar Hammouda, Nawel Gaamouri, Tarak Driss, Karim Chamari, Ridha Ben Cheikh, Mohamed Dogui, Nizar Souissi
The present study aimed to explore the effects of a single 10-mg dose of melatonin (MEL) administration after exhaustive late-evening exercise on sleep quality and quantity, and short-term physical and cognitive performances in healthy teenagers. Ten male adolescent athletes (mean ± SD, age = 15.4 ± 0.3 years, body-mass = 60.68 ± 5.7 kg, height = 167.9 ± 6.9 cm and BMI = 21.21 ± 2.5) performed two test sessions separated by at least one week. During each session, participants completed the Yo-Yo intermittent-recovery-test level-1 (YYIRT-1) at ~20:00 h...
May 30, 2018: Chronobiology International
https://www.readbyqxmd.com/read/29845083/glenohumeral-internal-rotation-deficit-and-injuries-a-systematic-review-and-meta-analysis
#15
REVIEW
Jordan E Johnson, Joshua A Fullmer, Chaseton M Nielsen, Joshua K Johnson, Claude T Moorman
Background: There is an association between throwing activity and glenohumeral internal rotation deficit (GIRD). An 18° to 20° deficit has been adopted as the standard definition of pathological GIRD, but specific findings as to how GIRD relates to an injury are inconsistent. Purpose: To systematically review the literature to clarify the definition of GIRD diagnosis for adolescent and adult overhead athletes and to examine the association between GIRD and an increased risk of injuries in these athletes...
May 2018: Orthopaedic Journal of Sports Medicine
https://www.readbyqxmd.com/read/29807278/the-inter-and-intrarater-reliability-and-agreement-for-field-based-assessment-of-scapular-control-shoulder-range-of-motion-and-shoulder-isometric-strength-in-elite-adolescent-athletes
#16
M Møller, J Attermann, G Myklebust, M Lind, H Sørensen, J J Hebert, R O Nielsen, S L Bertelsen, N Wedderkopp
OBJECTIVES: To investigate the intra- and interrater reliability and agreement for field-based assessment of scapular control, shoulder range of motion (ROM), and shoulder isometric strength in elite youth athletes. DESIGN: Test-retest reliability and agreement study. SETTING: Eight blinded raters (two for each assessment) assessed players on field during two testing sessions separated by one week. PARTICIPANTS: 162 elite youth handball players with or without a history of previous shoulder pain within the preceding six months...
April 9, 2018: Physical Therapy in Sport
https://www.readbyqxmd.com/read/29802602/dependence-on-subconcussive-impacts-of-brain-metabolism-in-collision-sport-athletes-an-mr-spectroscopic-study
#17
Sumra Bari, Diana O Svaldi, Ikbeom Jang, Trey E Shenk, Victoria N Poole, Taylor Lee, Ulrike Dydak, Joseph V Rispoli, Eric A Nauman, Thomas M Talavage
Long term neurological impairments due to repetitive head trauma are a growing concern for collision sport athletes. American Football has the highest rate of reported concussions among male high school athletes, a position held by soccer for female high school athletes. Recent research has shown that subconcussive events experienced by collision sport athletes can be a further significant source of accrued damage. Collision sport athletes experience hundreds of subconcussive events in a single season, and these largely go uninvestigated as they produce no overt clinical symptoms...
May 25, 2018: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/29794620/cleveland-clinic-postural-stability-index-norms-for-the-balance-error-scoring-system
#18
Susan M Linder, Sarah J Ozinga, Mandy Miller Koop, Tanujit Dey, Richard Figler, Jason Cruickshank, Jay L Alberts
INTRODUCTION: Despite the widespread utilization of the Balance Error Scoring System (BESS) in the evaluation of concussion, it has been criticized for its error-based scoring that is susceptible to floor and ceiling effects and substantial inter-rater variability. A biomechanical outcome, Cleveland Clinic-Postural Stability Index (CC-PSI), has been developed as an alternative to subjective BESS scoring. The CC-PSI utilizes inertial sensor data within a mobile device to provide an objective measure of postural sway during the BESS...
May 3, 2018: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/29794559/blood-pressure-response-to-maximal-dynamic-exercise-testing-in-an-athletic-population
#19
Axel Pressler, Angelika Jähnig, Martin Halle, Bernhard Haller
OBJECTIVE: Exaggerated blood pressure (BP) response to exercise testing has been linked to left ventricular hypertrophy and myocardial fibrosis in competitive athletes. Due to frequent training, athletes are particularly exposed to high BP levels, but data on the magnitude and distribution of BP response to exercise in athletic populations is scarce. METHODS: Cycle ergometry was performed in 2419 healthy competitive adolescent, professional and master athletes (age 26 ± 12 years, range 9-74, 27% women, 84 disciplines) for preparticipation screening...
May 21, 2018: Journal of Hypertension
https://www.readbyqxmd.com/read/29793833/early-anterior-knee-pain-in-male-adolescent-basketball-players-is-related-to-body-height-and-abnormal-knee-morphology
#20
Mantas Mickevičius, Hans Degens, Rolandas Kesminas, Saulius Rutkauskas, Danguolė Satkunskienė, Kazys Vadopalas, Kazimieras Pukėnas, Jaak Jürimäe, Albertas Skurvydas, Sigitas Kamandulis
OBJECTIVES: To compare knee torque, range of motion, quality of movement, and morphology in dominant and nondominant legs of male adolescent basketball players with and without anterior knee pain and untrained peers. DESIGN: Cross-sectional. SETTING: Sports performance laboratory. PARTICIPANTS: Male basketball players aged 14-15 years with and without anterior knee pain and healthy untrained subjects (n = 88). MAIN OUTCOME MEASURES: Basketball players were allocated to a symptomatic or asymptomatic group based on self-reported anterior knee pain...
April 5, 2018: Physical Therapy in Sport
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