Pediatric exercise science (PEDIATR EXERC SCI)

Publisher: North American Society of Pediatric Exercise Medicine, Human Kinetics

Journal description

The Official Journal of the North American Society of Pediatric Exercise Medicine, Pediatric Exercise Science (PES) is devoted to enriching the scientific knowledge of exercise during childhood. Articles focus on children's unique responses to exercise; the role of exercise in treating chronic pediatric disease; the importance of physical activity in preventing illness and preserving wellness; and methods for making youth sports safer and more enjoyable.

Current impact factor: 1.45

Impact Factor Rankings

2016 Impact Factor Available summer 2017
2014 / 2015 Impact Factor 1.452
2013 Impact Factor 1.613
2012 Impact Factor 1.574
2011 Impact Factor 1.711
2010 Impact Factor 1.127
2009 Impact Factor 1.577
2008 Impact Factor 1
2007 Impact Factor 0.761
2006 Impact Factor 0.983
2005 Impact Factor 1.576
2004 Impact Factor 1.375
2003 Impact Factor 0.831
2002 Impact Factor 0.982
2001 Impact Factor 0.814
2000 Impact Factor 0.732
1999 Impact Factor 0.709
1998 Impact Factor 0.564

Impact factor over time

Impact factor

Additional details

5-year impact 2.09
Cited half-life 8.20
Immediacy index 0.74
Eigenfactor 0.00
Article influence 0.64
Website Pediatric Exercise Science website
Other titles Pediatric exercise science
ISSN 1543-2920
OCLC 18237253
Material type Periodical
Document type Journal / Magazine / Newspaper

Publisher details

Human Kinetics

  • Pre-print
    • Archiving status unclear
  • Post-print
    • Author can archive a post-print version
  • Conditions
    • Author's post-print only (in PDF or other image capture format)
    • On the author's personal website(s) or institutional repository
    • Publisher's version/PDF cannot be used
    • Publisher copyright and source must be acknowledged
    • Must link to publisher version
    • Set statement to accompany deposit "as accepted for publication"
    • Publisher last contacted on 05/12/2013
  • Classification

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: Peak oxygen uptake (VO2) is widely recognised as the criterion measure of young people's aerobic fitness. Peak VO2 in youth has been assessed and documented for over 75 years but the interpretation of peak VO2 and its trainability are still shrouded in controversy. Causal mechanisms and their modulation by chronological age, biological maturation and sex remain to be resolved. Furthermore, exercise of the intensity and duration required to determine peak VO2 is rarely experienced by most children and adolescents. In sport and in everyday life young people are characterized by intermittent bouts of exercise and rapid changes in exercise intensity. In this context it is the transient kinetics of pulmonary (p) VO2 not peak VO2 which best describe aerobic fitness. There are few rigorously determined and appropriately analysed data from young people's p VO2 kinetics responses to step changes in exercise intensity. Understanding of the trainability of pVO2 kinetics is principally founded on comparative studies of trained and untrained youth and much remains to be elucidated. This paper reviews peak VO2, p VO2 kinetics and their trainability in youth. It summarizes 'what we know', identifies significant gaps in our knowledge, raises relevant questions, and indicates avenues for future research.
    No preview · Article · Jan 2016 · Pediatric exercise science
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    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 groups according to standard deviation scores for body mass index (z-BMI) and percentile for age and sex: obese (OB; z-BMI from 2 to 3 and ≥ 95th percentile, n=24) and normal weight controls (CG; z-BMI from -2 to 1 and < 85th percentile, n=20). OB performed isolated RT during 12 weeks [3 sets of 6-10reps with 70-85% 10RM]. Waist circumference, systolic/diastolic blood pressures (SBP/DBP), lipids, and HRV were assessed at baseline. Only OB underwent post-intervention assessments. Results: At baseline, SBP (122.4±9.1 vs. 109.7±11.5 mmHg, P<0.001) and DBP (76.1±7.1 vs. 65.3±5.9 mmHg, P<0.001) were higher, while parasympathetic HRV indexes were lower (P<0.05) in OB compared to CG. After RT, waist circumference (3%, P<0.001) and SBP (10%, P<0.001) reduced in OB. Parasympathetic indexes of HRV increased in OB (SDNN: 25%, P=0.03; rMSSD: 48%, P=0.0006; pNN50: 67%, P=0.001; total power: 54%, P=0.01; HF: 101%, P=0.001) and baseline differences between groups for sympathetic and parasympathetic activities were no longer observed after RT. Conclusion: RT attenuated CAdyfs and BP in obese adolescents, by increasing parasympathetic activity and decreasing sympatho-vagal balance.
    No preview · Article · Jan 2016 · Pediatric exercise science
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    ABSTRACT: The current understanding of child-adult differences in muscular and neuro-motor function will be reviewed while highlighting the gaps in our knowledge and raising research questions that could be addressed in the immediate or near future. Topics include muscle activation, muscle composition, strength attributes, strength- and aerobic-training, neuro-motor development, where neuro-muscular differences originate from, and the possible inter-relationships between motor and cognitive function. The various differences will be discussed on their specific merits, but also as possible manifestations of a common underlying factor which, if true, could provide a more holistic view of child-adult functional differences.
    No preview · Article · Jan 2016 · Pediatric exercise science
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    ABSTRACT: Purpose: This study tested associations of organized sports participation and unstructured active play with overall moderate and vigorous physical activity (MVPA) in low-income children, and examined factors associated with participation frequency. Method: Research staff visited 88 low-income, Chicago households with children ages 6-13 years. MVPA was assessed through 7-day accelerometry. Researchers documented the home availability of physical activity equipment. Caregivers reported on child participation in organized sports and unstructured active play, family support for physical activity, perceived neighborhood safety, and access to neighborhood physical activity venues. Results: Despite similar participation in organized sports and unstructured active play, boys accumulated more MVPA than girls. MVPA was predicted by an interaction between gender and unstructured active play. Boys accumulated 23-45 additional minutes of weekday MVPA and 53-62 additional minutes of weekend MVPA through unstructured active play, with no such associations in girls. Higher reported neighborhood safety and family support for physical activity were associated with engagement in unstructured active play for both genders, and with participation in organized sports for girls. Conclusion: Physical activity interventions for low-income, urban children should emphasize unstructured active play, particularly in boys. Fostering family support for physical activity and safe play environments may be critical intervention components.
    No preview · Article · Jan 2016 · Pediatric exercise science
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    ABSTRACT: Sex-specific equations for predicting maturity offset, time before or after peak height velocity (PHV), were evaluated in 63 girls and 74 boys from the Fels Longitudinal Study. Serially measured heights (0.1 cm), sitting heights (0.1 cm), weights (0.1 kg), and estimated leg lengths (0.1 cm) from 8 to 18 years were used. Predicted age at PHV (years) was calculated as the difference between chronological age (CA) and maturity offset. Actual age at PHV for each child was derived with a triple logistic model (Bock-Thissen-du Toit). Mean predicted maturity offset was negative and lowest at 8 years and increased linearly with increasing CA. Predicted ages at PHV increased linearly with CA from 8-18 years in girls and from 8-13 years in boys; predictions varied within relatively narrow limits from 12-15 years and then increased to 18 years in boys. Differences between predicted and actual ages at PHV among youth of contrasting maturity status were significant across the age range in both sexes. Dependence of predicted age at PHV upon CA at prediction and on actual age at PHV limits its utility as an indicator of maturity timing and in sport talent programs.
    No preview · Article · Jan 2016 · Pediatric exercise science
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    ABSTRACT: Purpose: Criterion-referenced cut-points for health-related fitness measures are lacking. This study aimed to determine the associations between aerobic fitness and high blood pressure levels (HBP) to determine the cut-points that best predict HBP among adolescents. Method: This cross-sectional school-based study with sample of 875 adolescents aged 14-19 years was conducted in southern Brazil. Aerobic fitness was assessed using the modified Canadian Aerobic Fitness Test (mCAFT). Systolic and diastolic blood pressure were measured by the oscillometric method with a digital sphygmomanometer. Analyses controlled for sociodemographic variables, physical activity, body mass and biological maturation. Results: Receiver Operating Characteristic (ROC) curves demonstrated that mCAFT measures could discriminate HBP in both sexes (female: AUC = 0.70; male: AUC = 0.63). The cut-points with the best discriminatory power for HBP were 32 mL·kg-1·min-1 for females and 40 mL·kg-1·min-1for males. Females (OR = 8.4; 95% CI: 2.1, 33.7) and males (OR: 2.5; CI 95%: 1.2, 5.2) with low aerobic fitness levels were more likely to have HBP. Conclusion: mCAFT measures are inversely associated with BP and cut-points from ROC analyses have good discriminatory power for HBP.
    No preview · Article · Jan 2016 · Pediatric exercise science
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    ABSTRACT: No abstract available for this article.
    No preview · Article · Dec 2015 · Pediatric exercise science
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    ABSTRACT: Obesity increases the risk of asthma throughout life but the underlying mechanisms linking these all too common threats to child health are poorly understood. Acute bouts of exercise, aerobic fitness, and levels of physical activity clearly play a role in the pathogenesis and/or management of both childhood obesity and asthma. Moreover, both obesity and physical inactivity are associated with asthma symptomatology and response to therapy (a particularly challenging feature of obesity-related asthma). In this article, we review current understandings of the link between physical activity, aerobic fitness and the asthma-obesity link in children and adolescents (e.g., the impact of chronic low-grade inflammation, lung mechanics, and direct effects of metabolic health on the lung). Gaps in our knowledge regarding the physiological mechanisms linking asthma, obesity and exercise are often compounded by imprecise estimations of adiposity and challenges of assessing aerobic fitness in children. Addressing these gaps could lead to practical interventions and clinical approaches that could mitigate the profound health care crisis of the increasing comorbidity of asthma, physical inactivity, and obesity in children.
    No preview · Article · Nov 2015 · Pediatric exercise science
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    ABSTRACT: Purpose: The reliability and construct validity of three age-adapted-intensity Yo-Yo tests were evaluated in untrained (n=67) vs. soccer-trained (n=65) 9-16-year-old school-girls. Methods: Tests were performed 7 days apart for reliability (9-11-year-old: Yo-Yo intermittent recovery level 1 children's test; 12-13-year-old: Yo-Yo intermittent endurance level 1; and 14-16-year-old: Yo-Yo intermittent endurance level 2). Results: Yo-Yo distance covered was 43% (747±364 vs. 522±162 m), 83% (1236±514 vs. 674±231 m) and 137% (679±348 vs. 286±67 m) greater (P≤0.010) for the soccer-trained than for the untrained girls aged 9-11, 12-13 and 14-16, respectively. Typical errors of measurement for Yo-Yo distance covered, expressed as a percentage of the coefficient of variation (confidence limits), were 10.1% (8.1-13.7%), 11.0% (8.6-15.4%) and 11.6% (9.2-16.1%) for soccer players, and 11.5% (9.1-15.8%), 14.1% (11.0-19.8%) and 10.6% (8.5-14.2%) for untrained girls, aged 9-11, 12-13 and 14-16, respectively. Intraclass correlation coefficient values for test-retest were excellent (0.795-0.973) in both groups. No significant differences were observed in relative exercise peak heart rate (%HRpeak) between groups during test and retest. Conclusion: The Yo-Yo tests are reliable for determining intermittent-exercise capacity and %HRpeak for soccer players and untrained 9-16-year-old girls. They also possess construct validity with better performances for soccer players compared to untrained age-matched girls, despite similar %HRpeak.
    No preview · Article · Nov 2015 · Pediatric exercise science
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    ABSTRACT: Little is known about the effects of acute exercise on the cognitive functioning of children with cerebral palsy (CP). Selected cognitive functions were thus measured using a pediatric version of the Stroop test before and after maximal, locomotor based aerobic exercise in 16 independently ambulatory children (8 children with CP), 6-15 years old. Intense exercise had: 1) a significant, large, positive effect on reaction time (RT) for the CP group (pre-exercise: 892 ± 56.5 ms vs. post-exercise: 798 ± 45.6 ms, p<0.002, d=1.87) with a trend for a similar but smaller response for the typically developing (TD) group (pre-exercise: 855 ± 56.5 ms vs. post-exercise: 822 ± 45.6 ms, p<0.08, d=0.59), and 2) a significant, medium, negative effect on the interference effect for the CP group (pre-exercise: 4.5 ± 2.5 %RT vs. post-exercise: 13 ± 2.9 %RT, p<0.04, d=0.77) with no significant effect for the TD group (pre-exercise: 7.2 ± 2.5 %RT vs. post-exercise: 6.9 ± 2.9 %RT, p>0.4, d=0.03). Response accuracy was high in both groups pre- and post-exercise (>96%). In conclusion, intense exercise impacts cognitive functioning in children with CP, both by increasing processing speed and decreasing executive function.
    No preview · Article · Oct 2015 · Pediatric exercise science
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    ABSTRACT: Near-infrared spectroscopy (NIRS) has long been used to measure tissue-specific O2 dynamics in exercise, but most published data have used continuous wave devices incapable of quantifying absolute Hemoglobin (Hb) concentrations. We used time-resolved NIRS (TR-NIRS) to study exercising muscle (Vastus Lateralis, VL) and prefrontal cortex (PFC) Hb oxygenation in 11 young males (15.3 ± 2.1 yrs) performing incremental cycling until exhaustion (peak VO2 = 42.7 ± 6.1 ml/min/kg, mean peak power = 181 ± 38 W). TR-NIRS measurements of reduced scattering (µs´) and absorption (µa) at three wavelengths (759, 796, and 833 nm) were used to calculate concentrations of oxyHb ([HbO2]), deoxy Hb ([HbR]), total Hb ([THb]), and O2 saturation (stO2). In PFC, significant increases were observed in both [HbO2] and [HbR] during intense exercise. PFC stO2% remained stable until 80% of total exercise time, then dropped (-2.95%, p = .0064). In VL, stO2% decreased until peak time (-6.8%, p = .01). Segmented linear regression identified thresholds for PFC [HbO2], [HbR], VL [THb]. There was a strong correlation between timing of second ventilatory threshold and decline in PFC [HbO2] (r = .84). These findings show that TR-NIRS can be used to study physiological threshold phenomena in children during maximal exercise, providing insight into tissue specific hemodynamics and metabolism.
    No preview · Article · Oct 2015 · Pediatric exercise science
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    ABSTRACT: The aim of this study was to analyze the reliability and the validity of the handgrip, basketball throw and push-ups tests in children aged 6-12 years. One hundred and eighty healthy children (82 girls) agreed to participate in this study. All the upper body muscular fitness tests were performed twice (7 days apart) whereas the 1 repetition maximum (1RM) bench press test was performed 2 days after the first session of testing. All the tests showed a high reproducibility (ICC > 0.9) except the push-ups test (inter-trial difference = 0.77 ± 2.38, p < 0.001 and the percentage error = 9%). The handgrip test showed the highest association with 1RM bench press test (r = 0.79, p < 0.01; R2 = 0.621). In conclusion the handgrip and basketball throw tests are shown as reliable and valid tests to assess upper body muscular strength in children. More studies are needed to assess the validity and the reliability of the upper body muscular endurance tests in children.
    No preview · Article · Sep 2015 · Pediatric exercise science
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    ABSTRACT: NIH Director Francis Collins noted that the Common Fund initiative would lead to unprecedented insights into the mechanisms responsible for the health effects of physical activity. He noted: "Armed with this knowledge, researchers and clinicians may one day be able to define optimal physical activity recommendations for people at various stages of life, as well as develop precisely targeted regimens for individuals with particular health needs." Given the ominous burden of physical inactivity-related diseases and conditions in otherwise healthy children, and the growing number of children who survive chronic diseases in whom we know little about what constitutes healthy exercise, it is essential that the community of child health researchers develop compelling strategies and proposals in response to the unique opportunity offered through the Common Fund mechanism.
    No preview · Article · Sep 2015 · Pediatric exercise science