Child-adult differences in muscle activation--a review.

abstract：:Our purpose was to demonstrate that 30-s tethered swimming test can be a useful tool to estimate swimming performance in short distance freestyle events. Thirteen high level adolescent swimmers (7 male and 6 female of 16.6 ± 1.0 and 15.8 ± 0.8 years old) performed a 30-s maximum effort in front crawl tethered swimming...

journal_title：Pediatric exercise science

authors： Morouço PG,Vilas-Boas JP,Fernandes RJ

更新日期：2012-05-01 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：:The main purpose of the present study was to determine isokinetic strength and endurance, isometric strength, and anaerobic power for untrained healthy Saudi children and adolescents. The secondary purpose was to evaluate the effects of age in relation to anthropometric characteristics on strength and anaerobic perfor...

journal_title：Pediatric exercise science

authors： Almuzaini KS

更新日期：2007-08-01 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：: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：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：: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：: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：: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：: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 primary purpose of this paper was to provide insight into the effect of different training methods on sprinting time in male youth aged 8-18 years. Specific and nonspecific training methods were identified, the participants of the five teen studies categorized into pre, mid- and postpeak height velocity and effect...

journal_title：Pediatric exercise science

authors： Rumpf MC,Cronin JB,Pinder SD,Oliver J,Hughes M

更新日期：2012-05-01 00:00:00

abstract：:This study was designed to test the reproducibility of muscle oxygenation by NIRS in children during exercise. Twelve healthy non-obese and non-trained children performed one maximal graded test, and four 6-min constant load cycle exercises. Deoxy-hemoglobin (Hb/Mb- H+) data were averaged every 1, 5, 10, 20 and 30s. H...

journal_title：Pediatric exercise science

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

更新日期：2010-05-01 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: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：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：: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：: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：:Physical and Psychosocial Health Outcomes," in Ped Exerc Sci, 27(4), pp. 546-558, http://dx.doi.org/10.1123/pes.2015-0011, Kipp's affiliation was incorrectly listed as the Dept. of Kinesiology and Health Promotion, Lexington, KY. Kipp's correct affiliation is with the Dept. of Health and Human Performance, Texas State...

journal_title：Pediatric exercise science

authors： Weiss MR,Phillips AC,Kipp LE

更新日期：2016-02-01 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 examined whether active commuting to and from school was associated with more frequent walking and cycling to other neighborhood destinations. Parents reported on free-time physical activity and frequency of active commuting among 1,643 South Australians (9-15 years), as well as their perceptions of risk as...

journal_title：Pediatric exercise science

authors： Dollman J,Lewis NR

更新日期：2007-11-01 00:00:00

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：: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 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 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：:The purpose of this study was to investigate the relationship between maximal sprinting (MSS) and aerobic (MAS) speeds in a cohort of highly-trained young male soccer players with the influence of body mass controlled for using allometric scaling. MSS and MAS were obtained in 14 pre-age at peak height velocity (APHV) ...

journal_title：Pediatric exercise science

authors： Mendez-Villanueva A,Buchheit M,Kuitunen S,Poon TK,Simpson B,Peltola E

更新日期：2010-11-01 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：:Adjustment for body mass and maturation of strength, power, and velocity measures of young athletes is important for talent development. Seventy-four youth male athletes performed a ballistic leg press test at five loads relative to body mass. The data were analyzed in maturity groups based on years from peak height v...

journal_title：Pediatric exercise science

authors： Meylan CM,Cronin J,Hopkins WG,Oliver J

更新日期：2014-02-01 00:00:00

abstract：:This essay expounds on fundamental, quantitative elements of the exercise ventilation in children, which was the subject of the Tom Rowland Lecture given at the NASPEM 2018 Conference. Our knowledge about how much ventilation rises during aerobic exercise is reasonably solid; our understanding of its governance is a w...

journal_title：Pediatric exercise science

authors： Pianosi PT

更新日期：2018-11-01 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