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Pediatric Exercise Science

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https://www.readbyqxmd.com/read/28872443/pacer-performance-of-children-ages-11-14-with-attention-deficit-hyperactive-disorder
#1
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
#2
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/28872422/bone-turnover-markers-and-lean-mass-in-pubescent-boys-comparison-between-elite-soccer-players-and-controls
#3
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 in pubescent soccer players. Two groups participated in this study 65 elite young soccer players that trained from 6 to 8 hours per week and 60 controls. Bone mineral density (BMD), bone mineral content (BMC) in the whole body, lower limbs, lumbar spine, and femoral neck, biochemical markers of osteocalcin (OC), bone-specific alkaline phosphatase (BAP), C-telopeptide type I collagen (CTX) and total lean mass were assessed...
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
#4
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
#5
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/28787266/the-effects-of-maturation-on-measures-of-asymmetry-during-neuromuscular-control-tests-in-elite-male-youth-soccer-players
#6
Paul J Read, Jon L Oliver, Gregory D Myer, Mark B A De Ste Croix, Rhodri S Lloyd
PURPOSE: Asymmetry is a risk factor for male youth soccer players. There is a paucity of data confirming the presence of asymmetry using practically viable screening tasks in players at different stages of maturation. METHOD: A cross sectional sample (N = 347) of elite male youth soccer players who were either (pre-, circa- or post-peak height velocity (PHV)) completed the following single leg assessments: Y-Balance anterior reach (Y-Bal); hop for distance (SLHD); 75% hop and stick (75%Hop) and countermovement jumps (SLCMJ)...
August 8, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28787264/bone-health-of-young-male-gymnasts-a-systematic-review
#7
Lauren A Burt, David A Greene, Geraldine A Naughton
PURPOSE: To synthesize existing literature on the impact of gymnastics participation on the skeletal health of young male gymnasts. METHOD: 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...
August 8, 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
#8
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 years) 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...
August 8, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28787244/energy-cost-expression-for-a-youth-compendium-of-physical-activities-rationale-for-using-age-groups
#9
K A Pfeiffer, K B Watson, R G McMurray, D R Bassett, N F Butte, S E Crouter, S D Herrmann, S G Trost, B E Ainsworth, J E Fulton, D Berrigan
PURPOSE: This study compared the accuracy of physical activity energy expenditure (PAEE) prediction using two methods of accounting for age dependency versus one standard (single) value across all ages. METHOD: PAEE estimates were derived by pooling data from five studies. Participants, 6-18 years (n=929), engaged in 14 activities while in a room calorimeter or wearing a portable metabolic analyzer. Linear regression was used to estimate the measurement error in PAEE (expressed as METy) associated with using age-groups (6-9, 10-12, 13-15, and 16-18 years) and age-in-years (each year of chronological age (e...
August 8, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28787243/effect-of-low-vs-high-intensity-exercise-training-on-biomarkers-of-inflammation-and-endothelial-dysfunction-in-adolescents-with-obesity-a-6-month-randomized-exercise-intervention-study
#10
Thiago R S Tenório, P Babu Balagopal, Lars B Andersen, Raphael M Ritti-Dias, James O Hill, Mara C Lofrano-Prado, Wagner L Prado
PURPOSE: To investigate the effects of a low vs. high intensity aerobic training on biomarkers of inflammation and endothelial dysfunction in adolescents with obesity. METHODS: Sixty-two adolescents with obesity (age: 15±14 years, BMI: 34.87±4.22 kg.m-2) were randomized to receive either a high intensity training (HIT, n=31) or a low intensity training (LIT, n=31) for 24 weeks. All participants also received nutritional, psychological and clinical counseling. Leptin, total and subtype leukocyte counts, tumor necrosis factor alpha (TNF-α), interleukin-6, myeloperoxidase, soluble intercellular adhesion molecule-1 (sICAM-1) and soluble vascular cell adhesion molecule-1 (sVCAM-1) were obtained at baseline and after 24 weeks...
August 8, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28787242/nutrition-status-of-young-elite-female-german-football-players
#11
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 a 7-day food and activity record and blood parameters. METHODS: A total of 56 female elite football players (14.8±0.7 yrs) 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, macronutrient and micronutrient intake and energy expenditure was calculated using predictive equations...
August 8, 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-martial-arts-and-bone-density
#12
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 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 control group ([CG] not engaged in any sport) and 50 fighters (Kung-fu / karate-KF / KT, n = 29; Judo, n = 21). All 79 subjects underwent anthropometric measures (weight, height, leg length and height set), dual energy x-ray absorptiometry (Bone Mineral Density [BMD], in g/cm(2)) at two moments, baseline and nine months later...
July 17, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28661786/impact-of-a-soccer-game-on-cardiac-biomarkers-in-adolescent-players
#13
Seyed Mohsen Hosseini, Mojtaba Azizi, Ali Samadi, Nahid Talebi, Gatterer Hannes, Martin Burtscher
PURPOSE: Biochemical markers such as cardiac troponin I (cTnI) and N-terminal pro B-type natriuretic peptide (NT-proBNP) have become indispensable tools for the diagnosis of myocardial injury, providing highly sensitive and specific information about cardiac cell damage and wall stress. The purpose of the present research was to examine the response of cardiac biomarkers to a soccer game in adolescent male soccer players. METHODS: 22 trained adolescent male soccer players (14-16 years) were selected in a purposive manner...
June 29, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28661773/in-water-resisted-swim-training-for-age-group-swimmers-an-evaluation-of-training-effects
#14
Kosuke Kojima, Christopher L Brammer, Tyler D Sossong, Takashi Abe, Joel M Stager
PURPOSE: To compare the efficacy of resisted sprint swim training (RST) to that of unresisted sprint swim training (ST) on 50-meter freestyle competition time (VMAX50) in age-group swimmers. METHODS: Twenty-four age-group swimmers (age 10.6-14.9 years) were divided into RST or ST and completed a sprint swim training intervention twice per week for ten weeks. Repeated 10-meter sprints with progressively increasing resistance were used to determine measures of swim power...
June 29, 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
#15
Marta 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 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 non-gymnasts both in adolescence (8-15 yrs) and adulthood (22-30 yrs)...
June 29, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28661716/gene-by-activity-interactions-on-obesity-traits-of-six-year-old-new-zealand-european-children-a-children-of-scope-study
#16
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 hypothesised 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...
June 29, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28530510/self-reported-physical-activity-and-exercise-patterns-in-children-with-sickle-cell-disease
#17
Osarhiemen A Omwanghe, Devin S Muntz, Soyang Kwon, Simone Montgomery, Opeyemi Kemiki, Lewis L Hsu, Alexis A Thompsonand, Robert I Liem
PURPOSE: Sickle cell disease (SCD) significantly affects physical functioning. We examined physical activity (PA) patterns in children with SCD versus a national sample and factors associated with PA and participation in physical education and organized sports. METHOD: One hundred children with SCD completed a 58-item survey with questions from the 2009-2010 National Health and Nutrition Examination Survey (NHANES) Physical Activity Questionnaire and others on physical education and sports, disease impact, and physical functioning...
August 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28486060/aerobic-fitness-and-moderate-to-vigorous-physical-activity-in-children-and-adolescents-living-with-hiv
#18
Luiz Rodrigo Augustemak de Lima, Diego Augusto Santos Silva, Kelly Samara da Silva, Andreia Pelegrini, Isabela de Carlos Back, Edio Luiz Petroski
PURPOSE: To examine aerobic fitness, total moderate to vigorous physical activity (MVPA) and also patterns in terms of MVPA between children and adolescents with human immunodeficiency virus (HIV) and controls, and to determine whether differences, if any, are associated with HIV, sex and highly active antiretroviral therapy (HAART). METHOD: A cross-sectional analysis was carried out with 130 children and adolescents, aged between 8 and 15 years, divided into two groups (HIV group= 65 patients, control group= 65 healthy participants)...
August 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28486024/longitudinal-associations-between-sedentary-behavior-of-adolescent-girls-their-mothers-and-best-friends
#19
Lennart Raudsepp, Eva-Maria Riso
PURPOSE: The objective of this study was to examine the prospective relationship and changes in sedentary behavior between adolescent girls, their mothers and best friends over time. METHOD: The results are based on 122 girls aged 11-12 years at baseline measurement, their mothers and best friends who completed ecological momentary assessment diary for the assessment of sedentary behavior. All measurements were taken at 3 time points separated by one year. We used structural equation modeling to examine associations among sedentary behavior of adolescent girls, their mothers and best friends...
August 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28486020/assessing-parent-perceptions-of-physical-activity-in-families-of-toddlers-with-neurodevelopmental-disorders-the-parent-perceptions-of-physical-activity-scale-pppas
#20
Kimberley D Lakes, Maryam M Abdullah, Julie Youssef, Joseph H Donnelly, Candice Taylor-Lucas, Wendy A Goldberg, Dan Cooper, Shlomit Aizik
PURPOSE: The purpose of this study was to examine a new tool (PPPAS = Parent Perceptions of Physical Activity Scale-Preschool) developed to study parental perceptions of physical activity (PA) among parents of toddler and preschool age children. METHOD: 143 children (mean age 31.65 months; 75% male) and their parents were recruited from a neurodevelopmental clinic. Parents completed questionnaires, and both a psychologist and a physician evaluated the children. Eighty-three percent of the children received a diagnosis of Autism Spectrum Disorder; 20% of the children had a BMI > 85th percentile...
August 2017: Pediatric Exercise Science
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