Compliance and Practical Utility of Continuous Wearing of activPAL™ in Adolescents.

abstract：:Observational studies identified associations between vitamin D insufficiency (serum 25(OH)D < 30ng·ml-1) and risk of upper respiratory infection (URI). Swimmers are highly prone to URIs, which might hinder their performance. The aim of this study was to examine if vitamin D3 supplementation reduces URI burden in vita...

journal_title：Pediatric exercise science

authors： Dubnov-Raz G,Rinat B,Hemilä H,Choleva L,Cohen AH,Constantini NW

更新日期：2015-02-01 00:00:00

abstract：:As the incidence of childhood obesity increases, there is a need to promote leisure time physical activity. Traditional approaches to promote the population physical activity levels have shown at best moderate improvements. High percentage of children today carry a cell phone, thus the use of this portable device seem...

journal_title：Pediatric exercise science

authors： Nemet D

更新日期：2017-02-01 00:00:00

abstract：:"Gaps in Our Knowledge" are discussed in the context of the need to integrate biological and behavioral factors in a biocultural approach to physical activity and movement proficiency. Specific issues considered include outdoor play, organized and informal activity, biological maturation, tracking of activity, develop...

journal_title：Pediatric exercise science

authors： Malina RM,Cumming SP,Coelho E Silva MJ

更新日期：2016-05-01 00:00:00

abstract：:This study compared salivary and serum concentrations of testosterone and cortisol at rest and in response to intense multitask exercise in boys and men. Early morning saliva and venous blood samples were obtained before and 15 minutes after exercise from 30 competitive swimmers (15 boys, age 14.3 [1.9] y; 15 men, age...

journal_title：Pediatric exercise science

authors： Adebero T,McKinlay BJ,Theocharidis A,Root Z,Josse AR,Klentrou P,Falk B

更新日期：2020-05-01 00:00:00

abstract：:The strength of time-dependent correlations known as stride interval (SI) dynamics has been proposed as an indicator of neurologically healthy gait. Most recently, it has been hypothesized that these dynamics may be necessary for gait efficiency although the supporting evidence to date is scant. The current study exam...

journal_title：Pediatric exercise science

authors： Ellis D,Sejdic E,Zabjek K,Chau T

更新日期：2014-08-01 00:00:00

abstract：:Most pedometers record cumulative steps, limiting ability to assess level of physical activity or nonwear periods. The SportBrain iStep X1 has potential to overcome this limitation by recording and storing step count data in 60-s epochs. We evaluated accuracy of this instrument in children and the duration of consecut...

journal_title：Pediatric exercise science

authors： Dueker D,Gauderman WJ,McConnell R

更新日期：2012-11-01 00:00:00

abstract：:The aim of this study was to assess the convergent validity of a new piezoelectric pedometer and an omnidirectional accelerometer for assessing children's time spent in moderate to vigorous physical activity (MVPA).A total of 114 children (51 boys, 63 girls) aged 5-11 years wore a sealed NL-1000 piezoelectric pedomete...

journal_title：Pediatric exercise science

authors： Duncan S,White K,Sa'ulilo L,Schofield G

更新日期：2011-08-01 00:00:00

abstract：:To determine absolute and relative (adjusted for body mass) strength, mean power, and mean velocity for upper and lower body resistance exercises, forty-seven young boys and girls participated in maximal strength testing. Healthy young boys and girls, ages 3- to 7-years old, were tested for one-repetition maximum (1-R...

journal_title：Pediatric exercise science

authors： Fry AC,Irwin CC,Nicoll JX,Ferebee DE

更新日期：2015-08-01 00:00:00

abstract：PURPOSE:To quantify the differences in daily physical activity (PA) patterns, intensity-specific volumes, and PA bouts in youth with and without heart disease (HD). METHODS:Seven-day PA was measured on children/adolescents with HD (n = 34; median age 12.4 y; 61.8% male; 70.6% single ventricle, 17.7% heart failure, and...

journal_title：Pediatric exercise science

authors： White DA,Willis EA,Panchangam C,Teson KM,Watson JS,Birnbaum BF,Shirali G,Parthiban A

更新日期：2020-09-22 00:00:00

abstract：:Previous research suggests the neighborhood environment may be an important influence on children's physical activity (PA) behaviors; however, findings are inconsistent. The purpose of this study was to further understand the relationship between perceptions of the neighborhood environment and children's afterschool m...

journal_title：Pediatric exercise science

authors： McDonald S,Dowda M,Colabianchi N,Porter D,Dishman RK,Pate RR

更新日期：2015-05-01 00:00:00

abstract：:2016 has been an exciting year for research in physical activity, inactivity and health. Recognition of the importance of all physical behaviors (physical activity, sedentary time and sleep) across the 24-hr day continues to grow. Notable advances have included: applications of recent methodological innovations that a...

journal_title：Pediatric exercise science

authors： Rowlands AV

更新日期：2017-02-01 00:00:00

abstract：:The aim of this study was to investigate the effects of a school-based cardiovascular-fitness-training program in children with mental retardation (MR). Thirty boys (8-15 years old) with mild to moderate mental retardation were randomly divided into 2 groups--experimental (EX) and control (CN). The EX group underwent ...

journal_title：Pediatric exercise science

authors： Ozmen T,Ryildirim NU,Yuktasir B,Beets MW

更新日期：2007-05-01 00:00:00

abstract：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 misconce...

journal_title：Pediatric exercise science

authors： Beck BR

更新日期：2017-11-01 00:00:00

abstract：PURPOSE:Cardiac autonomic dysfunction (CADysf) in children is often associated to obesity and may be attenuated by physical activity. In this study, we investigated the effects of resistance training (RT) upon CADysf assessed by heart rate variability (HRV) in obese adolescents. METHOD:Volunteers were assigned into gr...

journal_title：Pediatric exercise science

authors： Farinatti P,Neto SR,Dias I,Cunha FA,Bouskela E,Kraemer-Aguiar LG

更新日期：2016-08-01 00:00:00

abstract：:The purpose of this study was to determine the amount of physical and sedentary activity normal-weight and at-risk-for/overweight boys perform when alone, with a peer of similar weight and with a peer of different weight. Participants included boys, ages 8-12 years, classified as either normal-weight (<85th BMI percen...

journal_title：Pediatric exercise science

authors： Rittenhouse M,Salvy SJ,Barkley JE

更新日期：2011-02-01 00:00:00

abstract：PURPOSE:Sedentary behavior (SB) has been shown to be associated with unhealthy outcomes in children, and it is not clear whether children living with human immunodeficiency virus (HIV) engage in different patterns of SB compared with healthy children. This cross-sectional study aimed to compare patterns of SB between c...

journal_title：Pediatric exercise science

authors： da Costa BGG,da Silva KS,da Costa RM,Petroski EL,Back IC,Guerra PHA,de Lima LRA

更新日期：2020-02-01 00:00:00

abstract：:Training adaptation of the left ventricle (LV) and it's reversibility following the cessation of training in adults is well known and also studied in children. In the current study we describe the changes in the LV morphology in association with the training season during a 1.5 year follow-up period. 15 elite adolesce...

journal_title：Pediatric exercise science

authors： Csajági E,Szauder I,Major Z,Pavlik G

更新日期：2015-05-01 00:00:00

abstract：:The purpose of this study was to identify racial differences in physical activity (PA), fitness, and BMI in female 8th-grade sports participants and nonparticipants. Girls from 31 South Carolina middle schools (N = 1,903, 48% White; mean age = 13.6 +/- 0.63) reported PA and previous year sports-team participation, com...

journal_title：Pediatric exercise science

authors： Sirard JR,Pfeiffer KA,Dowda M,Pate RR

更新日期：2008-05-01 00:00:00

abstract：:Internal reliability, convergent validity, and construct validity of the Self-Report Habit Index (SRHI) were examined with respect to physical activity (Study 1) and sedentary behavior (Study 2) among children and adolescents. Internal reliabilities of the SRHI proved to be high in both studies. The SRHI correlated si...

journal_title：Pediatric exercise science

authors： Kremers SP,Brug J

更新日期：2008-02-01 00:00:00

abstract：:The objectives of this study were to explore whether triaxial is more accurate than uniaxial accelerometry and whether shorter sampling periods (epochs) are more accurate than longer epochs. Physical activity data from uniaxial and triaxial (RT3) devices were collected in 1-s epochs from 31 preschool children (15 male...

journal_title：Pediatric exercise science

authors： Hislop JF,Bulley C,Mercer TH,Reilly JJ

更新日期：2012-08-01 00:00:00

abstract：:This study investigated the feasibility and reliability of a 12 × 25-m repeated sprint test with sprints starting every 25-s in children aged 6-8 years (36 boys, 41 girls). In all subjects, total sprint time (TST) demonstrated high test-retest reliability (ICC: r = .98; CV: 0.7% (95% CI: 0.6-0.9)). While sprint time v...

journal_title：Pediatric exercise science

authors： Temfemo A,Lelard T,Carling C,Mandengue SH,Chlif M,Ahmaidi S

更新日期：2011-11-01 00:00:00

abstract：:Amid the childhood obesity epidemic, understanding how organized sports participation contributes to meeting physical activity recommendations in children is important. Anthropometrics were measured in children (n = 111; 68% female, 9.1 ± 0.8 yr) before one 50-min soccer match. Time spent at different physical activit...

journal_title：Pediatric exercise science

authors： Sacheck JM,Nelson T,Ficker L,Kafka T,Kuder J,Economos CD

更新日期：2011-05-01 00:00:00

abstract：:The purpose of this study was to measure oxygen uptake and energy expenditure in children during rock climbing activity. 29 children (age = 10.9 ± 1.7 yr) participated in the study. A commercially available rock climbing structure with ample features for submaximal effort climbing provided continuous terrain. Particip...

journal_title：Pediatric exercise science

authors： Watts PB,Ostrowski ML

更新日期：2014-02-01 00:00:00

abstract：:In his seminal paper, Rowland clearly outlined the rationale, evidence, and implications for the biological control of physical activity. Ten years later, there has been some progress in this area related to childhood physical activity with perhaps the greatest progress being made in the areas of genetics and the neur...

journal_title：Pediatric exercise science

authors： Eisenmann JC,Wickel EE

更新日期：2009-08-01 00:00:00

abstract：OBJECTIVES:Single sex after-school physical activity programs show potential to prevent unhealthy weight gain. The aim of this study was to assess the acceptability and potential efficacy of single-sex after-school physical activity programs for overweight and at-risk children from low-income communities. DESIGN:7-mon...

journal_title：Pediatric exercise science

authors： Jones RA,Kelly J,Cliff DP,Batterham M,Okely AD

更新日期：2015-11-01 00:00:00

abstract：:Teaching adolescents to use self-management strategies may be an effective approach to promoting lifelong physical activity (PA). However, the extent to which adolescents use self-management strategies and their impact on current PA have not been studied previously. The aims of this study were 1) to describe the preva...

journal_title：Pediatric exercise science

authors： Trost SG,Hutley J

更新日期：2015-02-01 00:00:00

abstract：:The present study examined the association between the angiotensin converting enzyme (ACE) insertion/deletion (I/D) polymorphism, physical activity, and resting blood pressure (BP) in a sample of 132 children (48.4% female). Children attaining 60 min/day of moderate-to-vigorous physical activity (MVPA) possessed lower...

journal_title：Pediatric exercise science

authors： Sarzynski MA,Eisenmann JC,Welk GJ,Tucker J,Glenn K,Rothschild M,Heelan K

更新日期：2010-05-01 00:00:00

abstract：:This study investigated the contribution of salivary testosterone (sT) concentration, years from peak height velocity (YPHV) and height by body mass interaction on jumping performance (Countermovement jump; CMJ) and aerobic fitness (Yo-Yo intermittent endurance test, level 1) in young elite soccer players. Forty-five ...

journal_title：Pediatric exercise science

authors： Moreira A,Mortatti A,Aoki M,Arruda A,Freitas C,Carling C

更新日期：2013-05-01 00:00:00

abstract：:The pulmonary oxygen uptake (pVO2) kinetic response at the onset of exercise provides a noninvasive window into the metabolic activity of the muscle and a valuable means of increasing our understanding of developmental muscle metabolism. However, to date only limited research has been devoted to investigating the pVO2...

journal_title：Pediatric exercise science

authors： Armstrong N,Barker AR

更新日期：2009-05-01 00:00:00

abstract：:The positive effects of physical training on heart rate variability (HRV) in healthy adults are widely recognized; however, the responsiveness to training in healthy children has not yet been established. The aim of this study was to determine the influence of physical training on HRV in prepubertal healthy children. ...

journal_title：Pediatric exercise science

authors： da Silva CC,Pereira LM,Cardoso JR,Moore JP,Nakamura FY

更新日期：2014-05-01 00:00:00