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Pediatric Exercise Science

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https://www.readbyqxmd.com/read/28530511/wnt-signaling-related-osteokines-and-transforming-growth-factors-before-and-after-a-single-bout-of-plyometric-exercise-in-child-and-adolescent-females
#1
Jennifer Dekker, Katlynne Nelson, Nigel Kurgan, Bareket Falk, Andrea Josse, Panagiota Klentrou
This study examined resting levels of catabolic and anabolic osteokines related to Wnt signaling and their responses to a single bout of plyometric exercise in child and adolescent females. Fourteen pre-menarcheal girls (10.5 ± 1.8 years old) and 12 post-menarcheal adolescent girls (15.0 ± 1.0 years old) performed a plyometric exercise trial. One resting and three post-exercise blood samples (5 min, 1h, 24h post-exercise) were analysed for sclerostin (SOST), dickkopf-1 (DKK-1), osteoprotegerin (OPG), receptor activator of nuclear factor kappa-β ligand (RANKL) and transforming growth factors (TGF-β1, TGF-β2 and TGF-β3)...
May 22, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28530510/self-reported-physical-activity-and-exercise-patterns-in-children-with-sickle-cell-disease
#2
Osarhiemen A Omwanghe, Devin S Muntz, Soyang Kwon, Simone Montgomery, Opeyemi Kemiki, Lewis L Hsu, Alexis A Thompson, 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...
May 22, 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
#3
Luiz Rodrigo Augustemak de Lima, Diego Augusto Santos Silva, Kelly Samara da Silva, Andreia Pelegrini, Isabela de Carlos Back, Edio Luiz Petroski
AIMS: 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). METHODS: 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)...
May 9, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28486024/longitudinal-associations-between-sedentary-behavior-of-adolescent-girls-their-mothers-and-best-friends
#4
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 Methods: 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 three 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...
May 9, 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
#5
Kimberley Lakes, Maryam M Abdullah, Julie Youssef, Joseph 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. 83% of the children received a diagnosis of Autism Spectrum Disorder; 20% of the children had a BMI > 85(th) percentile...
May 9, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28486015/muscular-and-cardiorespiratory-fitness-in-homeschool-versus-public-school-children
#6
Laura S Kabiri, Katy Mitchell, Wayne Brewer, Alexis Ortiz
PURPOSE: The growth and unregulated structure of homeschooling creates an unknown population in regard to muscular and cardiorespiratory fitness. The purpose of this research was to compare muscular and cardiorespiratory fitness between elementary school aged homeschool and public school children. METHOD: Homeschool children ages 8-11 years old (n=75) completed the curl-up, 90° push-up, and Progressive Aerobic Capacity Endurance Run (PACER) portions of the FitnessGram® to assess abdominal and upper body strength and endurance as well as cardiorespiratory fitness...
May 9, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28388271/physical-activity-sedentary-behaviour-and-the-risk-of-overweight-and-obesity-in-school-aged-children
#7
Eimear Keane, Xia Li, Janas M Harrington, Anthony P Fitzgerald, Ivan J Perry, Patricia M Kearney
PURPOSE: Globally, public health policies are targeting modifiable lifestyle behaviours. We explore the independent association of moderate-to-vigorous physical activity (MVPA) and sedentary behaviour on the risk of childhood overweight/obesity. METHOD: A cross-sectional survey of children aged 8-11 years (N=826). Objective body mass index was used to classify children as normal weight or overweight/obese. Children wore wrist-worn Geneactiv accelerometers for 7-days and thresholds were applied to categorise MVPA and sedentary time...
April 7, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28338426/the-role-of-exercise-in-prevention-and-treatment-of-osteopenia-of-prematurity-an-update
#8
Alon Eliakim, Ita Litmanovitz, Dan Nemet
Premature infants have an increased risk of osteopenia due to limited bone mass accretion in utero and a greater need for bone nutrients. Until recently, most of efforts to prevent osteopenia of prematurity focused on nutritional changes. Recent studies indicate that passive range of motion exercise of the extremities may lead to beneficial effects on body weight, increased bone mineralization, increased bone formation markers and leptin levels, and attenuation of the natural post-natal decline in bone SOS...
March 24, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28338412/adolescent-changes-in-aerobic-fitness-are-related-to-changes-in-academic-achievement
#9
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 not only result in poorer physical health, but also 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. METHOD: This study employed a prospective, longitudinal cross-sectional design. Fifty-two adolescents were followed from sixth grade through eighth grade...
March 24, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28253063/assessment-of-the-five-minute-oxygen-uptake-efficiency-slope-in-children-with-obesity
#10
Katrin A Dias, Concetta E Masterson, Matthew P Wallen, Arnt E Tjonna, Mansoureh S Hosseini, Peter Sw Davies, Peter A Cain, Gary M Leong, Ross Arena, Charlotte B Ingul, Jeff S Coombes
PURPOSE: Poor cardiorespiratory fitness is associated with increased all cause morbidity and mortality. In children with obesity, maximum oxygen uptake (V̇O2max) may not be achieved due to reduced motivation and peripheral fatigue. We aimed to identify a valid submaximal surrogate for V̇O2max in children with obesity. METHODS: Ninety-two children with obesity (7-16 years) completed a maximal exercise treadmill test and entered a three-month exercise and/or nutrition intervention after which the exercise test was repeated (n=63)...
March 2, 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28448242/the-tom-rowland-series-a-forum-exploring-new-challenges-facing-pediatric-exercise-science
#11
Bareket Falk
No abstract text is available yet for this article.
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28290759/cross-validation-of-two-accelerometers-for-assessment-of-physical-activity-and-sedentary-time-in-preschool-children
#12
Sofiya Alhassan, John R Sirard, Laura B F Kurdziel, Samantha Merrigan, Cory Greever, Rebecca M C Spencer
PURPOSE: The purpose of this study was to cross-validate previously developed Actiwatch (AW; Ekblom et al. 2012) and AcitGraph (AG; Sirard et al. 2005; AG-P, Pate et al. 2006) cut-point equations to categorize free-living physical activity (PA) of preschoolers using direct observation (DO) as the criterion measure. A secondary aim was to compare output from the AW and the AG from previously developed equations. METHODS: Participants' (n = 33; age = 4.4 ± 0.8 yrs; females, n=12) PA was directly observed for three 10-min periods during the preschool-day while wearing the AW (nondominant wrist) and AG (waist)...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28121265/beta-alanine-supplementation-improves-throwing-velocities-in-repeated-sprint-ability-and-200-m-swimming-performance-in-young-water-polo-players
#13
Gabriel Machado Claus, Paulo Eduardo Redkva, Gabriel Mota Pinheiro Brisola, Elvis Sousa Malta, Rodrigo de Araujo Bonetti de Poli, Willian Eiji Miyagi, Alessandro Moura Zagatto
The purpose of this study was to investigate the effects of beta-alanine supplementation on specific tests for water polo. Fifteen young water polo players (16 ± 2 years) underwent a 200-m swimming performance, repeated-sprint ability test (RSA) with free throw (shooting), and 30-s maximal tethered eggbeater kicks. Participants were randomly allocated into two groups (placebo × beta-alanine) and supplemented with 6.4g∙day(-1)of beta-alanine or a placebo for six weeks. The mean and total RSA times, the magnitude based inference analysis showed a likely beneficial effect for beta-alanine supplementation (both)...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28050932/physical-activity-levels-of-adolescents-with-type-1-diabetes-physical-activity-in-t1d
#14
Valderi Abreu de Lima, Luis Paulo Gomes Mascarenhas, Juliana Pereira Decimo, William Cordeiro de Souza, Anna Louise Stellfeld Monteiro, Ian Lahart, Suzana Nesi França, Neiva Leite
The aim of this study was to evaluate the level of physical activity and cardiorespiratory fitness in teenagers with type 1 diabetes mellitus (T1D) in comparison with healthy scholar participants. Total of 154 teenagers (T1D = 45 and CON = 109). Height, weight, cardiorespiratory fitness (VO2max), and the level of physical activity by the Bouchard's Physical Activity Record were measured, and glycated hemoglobin (HbA1c) in T1D. The VO2max was lower in the T1D (38.38 ± 7.54) in comparison with the CON (42.44 ± 4...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28050926/normative-values-for-cardiorespiratory-fitness-testing-among-us-children-aged-6-11-years
#15
Jaime J Gahche, Brian K Kit, Janet E Fulton, Dianna D Carroll, Thomas Rowland
BACKGROUND: Nationally representative normative values for cardiorespiratory fitness (CRF) have not been described for US children since the mid 1980s. OBJECTIVE: To provide sex- and age-specific normative values for CRF of US children aged 6-11 years. METHODS: Data from 624 children aged 6-11 years who participated in the CRF testing as part of the 2012 National Health and Nutrition Examination Survey National Youth Fitness Survey, a cross-sectional survey, were analyzed...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/28050914/physiological-perceptual-and-performance-responses-associated-with-self-selected-versus-standardized-recovery-periods-during-a-repeated-sprint-protocol-in-elite-youth-football-players-a-preliminary-study
#16
Neil Gibson, Callum Brownstein, Derek Ball, Craig Twist
PURPOSE: To examine the physiological and perceptual responses of youth footballers to a repeated sprint protocol employing standardized and self-selected recovery. METHODS: Eleven male participants (13.7 ± 1.1 years) performed a repeated sprint assessment comprising 10 × 30 m efforts. Employing a randomized cross-over design, repeated sprints were performed using 30 s and self-selected recovery periods. Heart rate was monitored continuously with ratings of perceived exertion (RPE) and lower body muscle power measured 2 min after the final sprint...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/27834619/maturation-related-effect-of-low-dose-plyometric-training-on-performance-in-youth-hockey-players
#17
Jason Moran, Gavin R H Sandercock, Rodrigo Ramírez-Campillo, Oliver Todd, Jay Collison, Dave A Parry
PURPOSE: The purpose of this intervention study was to investigate if a low-dose of plyometric training (PT) could improve sprint and jump performance in groups of different maturity status. METHOD: Male youth field hockey players were divided into Pre-PHV (from -1 to -1.9 from PHV; Experimental: n = 9; Control = 12) and Mid-PHV (0 to +0.9 from PHV; Experimental: n = 8; Control = 9) groups. Participants in the experimental groups completed 60 foot contacts, twice-weekly for 6 weeks...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/27834608/factors-associated-with-moderate-to-vigorous-physical-activity-in-adolescents-born-preterm
#18
Ketsia Proulx, Annette Majnemer, Noémi Dahan-Oliel, Barbara Mazer, Line Nadeau, Kathleen Vanier, Désirée B Maltais
PURPOSE: Little is known about the physical activity of adolescents born prematurely. This study aimed to: 1) describe relationships between moderate to vigorous physical activity (MVPA) in adolescents born prematurely and various factors and, 2) compare their MVPA level to guidelines. METHOD: A secondary analysis was performed using data from 64 adolescents (16.1 ± 2.5 years old, born £29 weeks gestation; 57.8% girls). Time spent in MVPA was based on accelerometry data...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/27834578/serum-adiponectin-levels-and-cardiorespiratory-fitness-in-nonoverweight-and-overweight-portuguese-adolescents-the-labmed-physical-activity-study
#19
César Agostinis-Sobrinho, Carla Moreira, Sandra Abreu, Luís Lopes, José Oliveira-Santos, Jostein Steene-Johannessen, Jorge Mota, Rute Santos
PURPOSE: This study examined the independent associations between cardiorespiratory fitness and circulating adiponectin concentration in adolescents, controlling for several potential covariates. METHODS: This is a cross-sectional study in Portuguese adolescents. A sample of 529 (267 girls) aged 12-18 years were included and categorized as overweight and nonoverweight. Cardiorespiratory fitness was assessed by 20 meters shuttle run test. We measured serum adiponectin, high-sensitivity C-reactive protein, fasting glucose, insulin and HDL-cholesterol...
May 2017: Pediatric Exercise Science
https://www.readbyqxmd.com/read/27768554/the-influence-of-familiarization-on-physical-fitness-test-results-in-primary-school-aged-children
#20
Ivan Vrbik, Goran Sporiš, Lovro Štefan, Dejan Madić, Nebojša Trajković, Irena Valantine, Zoran Milanović
PURPOSE: The number of familiarization sessions in fitness assessments seems to be critical and inconsistent. Therefore, the primary aim of this research was to determine the number of familiarization attempts that stabilize the results in particular physical fitness tests. The secondary aim was to establish the test reliability through familiarization sessions. METHODS: Thirty-nine primary school children participated in this research (age: 10.8 years, body mass: 40...
May 2017: Pediatric Exercise Science
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