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Pediatric Exercise Science

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https://www.readbyqxmd.com/read/29160762/commentary-on-the-article-improving-the-prediction-of-maturity-from-anthropometric-variables-using-a-maturity-ratio
#1
Alan Nevill, Richard F Burton
No abstract text is available yet for this article.
November 21, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28787247/hip-flexor-and-knee-extensor-muscularity-are-associated-with-sprint-performance-in-sprint-trained-preadolescent-boys
#2
Nobuaki Tottori, Tadashi Suga, Yuto Miyake, Ryo Tsuchikane, Mitsuo Otsuka, Akinori Nagano, Satoshi Fujita, Tadao Isaka
PURPOSE: We attempted to determine the relationships between the cross-sectional area (CSA) of the trunk and lower limb muscles and sprint performance in male preadolescent sprinters. METHODS: Fifteen sprint-trained preadolescent boys (age 11.6 ± 0.4 y) participated in this study. The CSAs of the participants' trunk and lower limb muscles were measured using magnetic resonance imaging, and these muscles were normalized with free-fat mass. To assess participants' sprint performance, sprint time and variables during the 50-m sprint test were measured...
October 20, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28787242/nutrition-status-of-young-elite-female-german-football-players
#3
Hans Braun, Judith von Andrian-Werburg, Wilhelm Schänzer, Mario Thevis
PURPOSE: To investigate energy intake, energy expenditure, and the nutritional status of young female elite football players using 7-day food and activity records and blood parameters. METHODS: A total of 56 female elite football players [14.8 (0.7) y] completed the requested food and activity protocols. Misreporting was assessed by the ratio of energy intake to energy expenditure. The food records were analyzed concerning energy and macronutrient and micronutrient intakes, and energy expenditure was calculated using predictive equations...
October 20, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29039261/one-year-follow-up-of-the-capo-kids-trial-are-physical-benefits-maintained
#4
Rossana C Nogueira, Benjamin K Weeks, Belinda Beck
PURPOSE: To determine the 12-month maintenance of a 9-month, thrice-weekly, 10-minute high-intensity exercise program, delivered in schools, on bone and other health-related performance variables in prepubertal children. METHODS: All participants (N = 311) of the CAPO kids trial (testing times T1-T2) were contacted to undergo retesting (T3) of all original measures-including weight, standing and sitting height, calcaneal broadband ultrasound attenuation (Achilles, GE), and stiffness index (Achilles, GE)-waist circumference, resting heart rate, blood pressure, vertical jump, and aerobic capacity...
October 17, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29039246/regular-practice-of-competitive-sports-does-not-impair-sleep-in-adolescents-dados-study
#5
María Reyes Beltran-Valls, Enrique García Artero, Ana Capdevila-Seder, Alejandro Legaz-Arrese, Mireia Adelantado-Renau, Diego Moliner-Urdiales
PURPOSE: To analyze differences in sleep quality and duration by athletic status and sex, and to examine the association between physical activity (PA) recommendation and sleep in adolescents. METHODS: A total of 267 adolescents [13.9 (0.3) y] from Deporte, ADOlescencia y Salud (DADOS) study (129 girls) were included in this cross-sectional analysis. Athletes competed regularly in organized sport events and trained ≥3 days per week, but nonathletes did not compete...
October 17, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28872422/bone-turnover-markers-and-lean-mass-in-pubescent-boys-comparison-between-elite-soccer-players-and-controls
#6
Ammar Nebigh, Mohamed Elfethi Abed, Rihab Borji, Sonia Sahli, Slaheddine Sellami, Zouhair Tabka, Haithem Rebai
The aim of this study was to examine the relationship between bone mass and bone turnover markers with lean mass (LM) in pubescent soccer players. Two groups participated in this study, which included 65 elite young soccer players who trained for 6-8 hours per week and 60 controls. Bone mineral density; bone mineral content in the whole body, lower limbs, lumbar spine, and femoral neck; biochemical markers of osteocalcin; bone-specific alkaline phosphatase; C-telopeptide type I collagen; and total LM were assessed...
October 17, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28661716/gene-by-activity-interactions-on-obesity-traits-of-6-year-old-new-zealand-european-children-a-children-of-scope-study
#7
Mohanraj Krishnan, Andrew N Shelling, Clare R Wall, Edwin A Mitchell, Rinki Murphy, Lesley M E McCowan, John M D Thompson
PURPOSE: The decline of physical activity in children is considered an important determinant to explain the rising rates of obesity. However, this risk may be augmented in children who are genetically susceptible to increased weight gain. We hypothesized that a sedentary lifestyle and moderate activity will interact with genetic loci, resulting in differential effects in relation to obesity risk. METHODS: We recruited 643 European children born to participants in the New Zealand-based Screening for Pregnancy Endpoints (SCOPE) study...
October 17, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/29019441/resilient-responsive-and-healthy-developing-bones-the-good-news-about-exercise-and-bone-in-children-and-youth
#8
Geraldine Naughton, David Greene, Daniel Courteix, Adam Baxter-Jones
No abstract text is available yet for this article.
October 11, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28787264/bone-health-of-young-male-gymnasts-a-systematic-review
#9
Lauren A Burt, David A Greene, Geraldine A Naughton
PURPOSE: To synthesize existing literatures on the impact of gymnastics participation on the skeletal health of young male gymnasts. METHODS: Following a systematic search, 12 studies were included in this review. Quality of included studies was assessed using the Strengthening the Reporting of Observational Studies in Epidemiology (STROBE modified) criteria. RESULTS: Assessment of skeletal health varied between and within imaging modality protocols...
October 11, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28605306/behavior-tracking-and-3-year-longitudinal-associations-between-physical-activity-screen-time-and-fitness-among-young-children
#10
Morgan Potter, John C Spence, Normand Boulé, Jodie A Stearns, Valerie Carson
PURPOSE: Understanding the correlates of children's fitness as they develop is needed. The objectives of this study were to 1) examine the longitudinal associations between physical activity (PA), screen time (ST), and fitness; 2) determine if sex moderates associations; and 3) track PA and ST over 3 years. METHODS: Findings are based on 649 children [baseline = 4.5 (0.5) y; follow-up = 7.8 (0.6) y] from Edmonton, Canada. Parental-reported hour per week of PA and ST were measured at baseline and 3 years later...
October 11, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28338412/adolescent-changes-in-aerobic-fitness-are-related-to-changes-in-academic-achievement
#11
Lauren B Raine, John R Biggan, Carol L Baym, Brian J Saliba, Neal J Cohen, Charles H Hillman
There is a growing trend of decreasing physical fitness among adolescents, which may result not only in poorer physical health, but also in poorer academic achievement. PURPOSE: The purpose of this study was to investigate the changes in aerobic fitness and academic achievement in reading and mathematics during middle school. METHODS: This study employed a prospective, longitudinal cross-sectional design. Fifty-two adolescents were followed from sixth grade through eighth grade...
October 10, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/27175903/the-change-project-changes-in-body-composition-and-cardiorespiratory-fitness-in-10-to-11-year-old-children-after-completing-the-change-intervention
#12
Rebecca M Dagger, Ian G Davies, Kelly A Mackintosh, Genevieve L Stone, Keith P George, Stuart J Fairclough, Lynne M Boddy
PURPOSE: To assess the effects of the Children's Health, Activity and Nutrition: Get Educated! intervention on body size, body composition, and peak oxygen uptake in a subsample of 10- to 11-year-old children. METHODS: Sixty children were recruited from 12 schools (N = 6 intervention) to take part in the CHANGE! subsample study. Baseline, postintervention, and follow-up measures were completed in October 2010, March-April 2011, and June-July 2011, respectively...
October 10, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28714773/impact-of-martial-arts-judo-karate-and-kung-fu-on-bone-mineral-density-gains-in-adolescents-of-both-genders-9-month-follow-up
#13
Igor H Ito, Han C G Kemper, Ricardo R Agostinete, Kyle R Lynch, Diego G D Christofaro, Enio R Ronque, Rômulo A Fernandes
PURPOSE: To compare bone mineral density (BMD) gains in adolescents of both genders stratified according to different martial art styles in a 9-month follow-up study. METHODS: The longitudinal study consisted of 29 adolescents of both genders and age between 11 and 17 years stratified into a control group (not engaged in any sport) and 50 fighters (kung fu/karate, n = 29; judo, n = 21). All 79 subjects underwent anthropometric measures (weight, height, leg length, and height set) and dual-energy X-ray absorptiometry (BMD, in g/cm(2)) at 2 moments, baseline and 9 months later...
September 22, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28872443/pacer-performance-of-children-ages-11-14-with-attention-deficit-hyperactive-disorder
#14
Timothy Martinson, Stephen A Butterfield, Craig A Mson, Shihfen Tu, Robert A Lehnhard, Christopher J Nightingale
PURPOSE: The purpose of this study was to examine performance on the Progressive Aerobic Cardiovascular Endurance Run (PACER) test in children with and without Attention Deficit Hyperactive Disorder (ADHD) over the course of a school year. Also investigated was the possible influence of age, sex, school sport participation, and body mass index (BMI) on results. METHOD: Utilizing a repeated measures design, 892 middle school children ages 11-14 (mean=12.25, SD=0...
September 5, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28872424/intensified-training-period-increases-salivary-iga-responses-but-does-not-affect-the-severity-of-upper-respiratory-tract-infection-symptoms-in-prepuberal-rhythmic-gymnasts
#15
Kizzy Antualpa, Marcelo Saldanha Aoki, Alexandre Moreira
This study examined the effect of a 4-week intensified training period (IT), followed by a 2-week tapering period (TP), on salivary immunoglobulin A (SIgA), salivary cortisol (CORT) and the severity of upper respiratory tract infection (URTI) symptoms in 23 rhythmic gymnasts (12.1±2.6 yrs; 143.9±13.7 cm; 37.2±9.4 kg). Saliva sampling was conducted at pre- and post-IT, and post-TP (analyzed using ELISA). The WURSS-21 questionnaire was completed daily to analyze the severity of URTI symptoms. The session-RPE was used to determine the internal training load and the acute:chronic workload ratio (ACW)...
September 5, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28872419/impact-of-scoliosis-severity-on-functional-capacity-in-patients-with-adolescent-idiopathic-scoliosis
#16
Bruna M A Saraiva, Geferson S Araujo, Evandro F Sperandio, Alberto O Gotfryd, Victor Z Dourado, Milena C Vidotto
The aim of this study is to evaluate the walked distance and physiological responses during Incremental Shuttle Walk Test (ISWT) in patients with different degrees of adolescent idiopathic scoliosis (AIS). METHOD: We evaluated 20 healthy teenagers and 46 with AIS were divided into two groups: AIS > 45° and AIS < 45º. The volunteers performed an ISWT and the following physiological responses were quantified: oxygen consumption (VO2), tidal volume (VT) and ventilation (VE) and the walked distance (ISWD)...
September 5, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28872417/how-does-the-relationship-between-motor-skill-performance-and-body-mass-index-impact-physical-activity-in-preschool-children
#17
Haixia Guo, Michaela A Schenkelberg, Jennifer R O'Neill, Marsha Dowda, Russell R Pate
PURPOSE: To determine if weight status modifies the relationship between motor skill (MS) performance and physical activity (PA) in preschoolers. METHOD: Preschoolers (n = 227, ages 3-5 years) were recruited from 22 preschools. Preschoolers' MS (locomotor, object control, and total MS) were assessed with the CHAMPS Motor Skill Protocol. PA was measured by accelerometry. Mixed linear models were used to examine the relationship of MS performance and BMI z-score to PA...
September 5, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28661717/structural-strength-benefits-observed-at-the-hip-of-premenarcheal-gymnasts-are-maintained-into-young-adulthood-10-years-after-retirement-from-the-sport
#18
Marta C Erlandson, Shonah B Runalls, Stefan A Jackowski, Robert A Faulkner, Adam D G Baxter-Jones
PURPOSE: Premenarcheal female gymnasts have been consistently found to have greater bone mass and structural advantages. However, little is known about whether these structural advantages are maintained after the loading stimulus is removed. Therefore, the purpose of this study was to investigate the structural properties at the hip after long-term retirement from gymnastics. METHODS: Structural properties were derived from dual-energy X-ray absorptiometry scans using the hip structural analysis program for the same 24 gymnasts and 21 nongymnasts both in adolescence (8-15 y) and adulthood (22-30 y)...
November 1, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28605250/exercise-for-bone-in-childhood-hitting-the-sweet-spot
#19
Belinda R Beck
PURPOSE: The goal of the current work is to challenge the enduring notion that prepuberty is the optimum timing for maximum bone response to exercise in childhood and to present the evidence that early puberty is a more potently receptive period. METHOD: The relevant literature is reviewed and the causes of the misconception are addressed in detail. RESULTS: Contrary to prevailing opinion, ample evidence exists to suggest that the peripubertal years represent the developmental period during which bone is likely to respond most robustly to exercise intervention...
November 1, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28605234/the-impact-of-training-load-on-bone-mineral-density-of-adolescent-swimmers-a-structural-equation-modeling-approach
#20
Ricardo Ribeiro Agostinete, Santiago Maillane-Vanegas, Kyle R Lynch, Bruna Turi-Lynch, Manuel J Coelho-E-Silva, Eduardo Zapaterra Campos, Suziane Ungari Cayres, Romulo Araújo Fernandes
PURPOSE: To investigate the mediating effect of muscle mass on the relationship between training load and bone density in adolescent swimmers. METHODS: A cross-sectional study involving 87 control and 22 swimmers aged 10-19 years (overall sample: n = 109). Swimmers had a minimum of 1 year of competition in regional and national championships, and control adolescents reported 1 year without any organized sport. Bone density was the main outcome (dual-energy X-ray absorptiometry), which was measured in upper limbs, lower limbs, spine, and whole body...
November 1, 2017: Pediatric Exercise Science
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