Is the relationship between sprinting and maximal aerobic speeds in young soccer players affected by maturation?

abstract：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 s...

journal_title：Pediatric exercise science

authors： Omwanghe OA,Muntz DS,Kwon S,Montgomery S,Kemiki O,Hsu LL,Thompson AA,Liem RI

更新日期：2017-08-01 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：: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：: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 objective of this study was to investigate the effect of an 8-week aerobic-exercise training program on ventilatory threshold and ventilatory efficiency in overweight children. Twenty overweight children (BMI > 85th percentile) performed a graded cycle exercise test at baseline and were then randomly assigned to 8...

journal_title：Pediatric exercise science

authors： Kaufman C,Kelly AS,Kaiser DR,Steinberger J,Dengel DR

更新日期：2007-02-01 00:00:00

abstract：:The objective of the current study is to determine the effects of regular wrestling exercise oxidative DNA damage and antioxidant parameters. The findings of the current study have shown that 8-hydroxy-2'-deoxyguanosine (8-OHdG) obtained from wrestlers in basal status were significantly lower than those of sedentary (...

journal_title：Pediatric exercise science

authors： Hamurcu Z,Saritas N,Baskol G,Akpinar N

更新日期：2010-02-01 00:00:00

abstract：:In 2017, considerable attention has been paid by researchers on early sports specialization for youth athletes. Issues related to injury, burnout, and talent development to name a few have been debated, particularly when contrasted against other opposing youth development approaches, such as a multisport approach. The...

journal_title：Pediatric exercise science

authors： Williams CA

更新日期：2018-02-01 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：:The aim of this investigation was to develop an equation to estimate physical activity energy expenditure (PAEE) during a 10-min physically active academic lesson using The System for Observing Fitness Instruction Time (SOFIT) and demographic information. PAEE (portable indirect calorimeter) and physical activity (SOF...

journal_title：Pediatric exercise science

authors： Honas JJ,Washburn RA,Smith BK,Greene JL,Cook-Wiens G,Donnelly JE

更新日期：2008-11-01 00:00:00

abstract：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 th...

journal_title：Pediatric exercise science

authors： de Lima LRA,Silva DAS,da Silva KS,Pelegrini A,de Carlos Back I,Petroski EL

更新日期：2017-08-01 00:00:00

abstract：PURPOSE:Research regarding exercise-induced muscle-damage mainly focuses on adults. The present study examined exercise-induced muscle-damage responses in adults compared with children. METHOD:Eleven healthy boys (10-12 y) and 15 healthy men (18-45 y) performed 5 sets of 15 maximal eccentric contractions of the knee e...

journal_title：Pediatric exercise science

authors： Deli CK,Fatouros IG,Paschalis V,Georgakouli K,Zalavras A,Avloniti A,Koutedakis Y,Jamurtas AZ

更新日期：2017-08-01 00:00:00

abstract：PURPOSE:The use of self-efficacy to predict physical activity has a long history. However, this relationship is complex, as self-efficacy is thought to influence and be influenced by physical activity. The directionality of the self-regulatory efficacy (SRE) and physical activity relationship was examined using a cross...

journal_title：Pediatric exercise science

authors： Wilson KS,Spink KS

更新日期：2020-07-29 00:00:00

abstract：:The purpose of this study was to assess physical activity preferences (PAP) in preadolescent children. 191 Latino and White children (M = 11.9, SD = +/- 0.7) participated. Demographic, anthropometric, and PAP measures were employed. Both Latino and White children reported water play, basketball, and bicycling as their...

journal_title：Pediatric exercise science

authors： Olvera N,McCarley KE,Leung P,McLeod J,Rodriguez AX

更新日期：2009-11-01 00:00:00

abstract：PURPOSE:Fatigue negatively alters dynamic knee control, and the functional hamstring/quadriceps ratio (H/QFUNC) plays an important role in stabilizing the joint. The aim of this study was to investigate the influence of soccer-specific exercise on H/QFUNC in under (U) 13-, U15-, and U17-year-old female soccer players. ...

journal_title：Pediatric exercise science

authors： De Ste Croix M,Priestley A,Lloyd R,Oliver J

更新日期：2018-08-01 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：:The Wingate anaerobic test (WAnT) has not been used to assess individuals with Down syndrome (DS) and it is unknown if it is reliable in this population. We investigated the reliability of the WAnT in 19 adolescents with DS (age = 14.8 yrs; weight = 52.7 kg; height = 146.3 cm). Participants completed, on separate days...

journal_title：Pediatric exercise science

authors： Guerra M,Gine-Garriga M,Fernhall B

更新日期：2009-02-01 00:00:00

abstract：:This study first aimed to compare critical power (CP) and anaerobic work capacity (AWC), to laboratory standard evaluation methods such as maximal oxygen uptake (VO(2)max) and maximal accumulated oxygen deficit (MAOD). Secondly, this study compared child and adult CP and AWC values. Subjects performed a maximal graded...

journal_title：Pediatric exercise science

authors： Leclair E,Borel B,Thevenet D,Baquet G,Mucci P,Berthoin S

更新日期：2010-08-01 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：:Our goal was to test the effect of a brief, novel bone- and fat-targeted exercise program on bone, muscle, and fat in healthy pre and peripubertal boys. We conducted a 10-min, 3/wk capoeira and jumping exercise intervention for 9 months with year 5 and 6 school boys. Anthropometrics, maturity, heart rate, blood pressu...

journal_title：Pediatric exercise science

authors： Nogueira RC,Weeks BK,Beck BR

更新日期：2015-02-01 00:00:00

abstract：UNLABELLED:We initiated a pilot study to investigate the effects of 8 wks of aerobic exercise training (ET) on insulin sensitivity and inflammatory markers in obese and insulin-resistant minority adolescents. Eleven morbidly obese (BMI 41.4 ± 1.8 kg/m2) minority adolescents were entered into a supervised ET interventio...

journal_title：Pediatric exercise science

authors： Many G,Hurtado ME,Tanner C,Houmard J,Gordish-Dressman H,Park JJ,Uwaifo G,Kraus W,Hagberg J,Hoffman E

更新日期：2013-02-01 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：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 we...

journal_title：Pediatric exercise science

authors： Lakes KD,Abdullah MM,Youssef J,Donnelly JH,Taylor-Lucas C,Goldberg WA,Cooper D,Radom-Aizik S

更新日期：2017-08-01 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：: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 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

abstract：PURPOSE:Bullying is a specific pattern of repeated victimization explored with great frequency in school-based literature, but receiving little attention within sport. The current study explored the prevalence of bullying in sport, and examined whether bullying experiences were associated with perceptions about relatio...

journal_title：Pediatric exercise science

authors： Evans B,Adler A,Macdonald D,Côté J

更新日期：2016-05-01 00:00:00

abstract：OBJECTIVES:This study aims to (1) use the objective activPAL activity monitor to assess physical activity behaviors, including sitting/lying, standing, and both light (LIPA) and moderate-to-vigorous physical activity (MVPA); (2) to develop distinct activity profiles based on time spent in each behavior in a sample of a...

journal_title：Pediatric exercise science

authors： Dowd K,Harrington D,Hannigan A,Purtill H,Kelly SM,Macken AP,Moyna N,O'Gorman CS,Donnelly AE

更新日期：2016-02-01 00:00:00

abstract：PURPOSE:The purpose of this study was to examine age and sex differences in standing long jump (SLJ) and to determine norm-referenced values for Spanish preschool children. METHOD:A total of 3555 children, aged 3-6 years, participated in this study (1746 girls and 1809 boys). To measure explosive leg power, the SLJ wa...

journal_title：Pediatric exercise science

authors： Latorre-Román PÁ,García-Pinillos F,Mora-López D

更新日期：2017-02-01 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