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: 1.61

Impact Factor Rankings

2015 Impact Factor Available summer 2015
2013 / 2014 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
Year

Additional details

5-year impact 2.13
Cited half-life 9.00
Immediacy index 0.11
Eigenfactor 0.00
Article influence 0.62
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
    ​ blue

Publications in this journal

  • [Show abstract] [Hide abstract]
    ABSTRACT: The purpose of this study was to examine the reliability of the spatio-temporal determinants of maximal sprinting speed in boys over single and multiple steps. Fifty-four adolescent boys (age = 14.1 ± 0.7 years [range=12.9-15.7 years]; height = 1.63 ± 0.09 m; body mass = 55.3 ± 13.3 kg; -0.31 ± 0.90 age from Peak Height Velocity (PHV) in years; mean ± s) volunteered to complete a 30 m sprint test on three occasions over a two-week period. Speed, step length, step frequency, contact time and flight time were assessed via an optical measurement system. Speed and step characteristics were obtained from the single-fastest step and average of the two- and four-fastest consecutive steps. Pairwise comparison of consecutive trials revealed the coefficient of variation (CV) for speed was greater in 4-step (CV=7.3 & 7.5%) compared to 2-step (CV=4.2 & 4.1%) and 1-step (CV=4.8 & 4.6%) analysis. The CV of step length, step frequency and contact time ranged from 4.8-7.5% for 1-step, 3.8-5.0% for 2-step and 4.2-7.5% for 4-step analyses across all trials. An acceptable degree of reliability was achieved for the spatio-temporal and performance variables assessed in this study. Two-step analysis demonstrated the highest degree of reliability for the key spatio-temporal variables, and therefore may be the most suitable approach to monitor the spatio-temporal characteristics of maximal sprint speed in boys.
    Pediatric exercise science 05/2015; DOI:10.1123/pes.2015-0038
  • [Show abstract] [Hide abstract]
    ABSTRACT: The relationship between physical activity levels and the metabolic syndrome (MetSyn) score was examined in 72 boys and girls (9.5 ± 1.2 years). A fasting blood draw was obtained; waist circumference and blood pressure measured, and an accelerometer was worn for 5 days. Established cut points were used to estimate time spent in moderate, vigorous, moderate-to-vigorous (MVPA), and total physical activity. A continuous MetSyn score was created from blood pressure, waist circumference, high-density-lipoprotein, triglyceride, and glucose values. Regression analysis was used to examine the relationship between physical activity levels, the MetSyn score, and its related components. Logistic regression was used to examine the association between meeting physical activity recommendations, the MetSyn score, and its related components. All analyses were controlled for body mass index group, age, sex, and race. Time spent in different physical activity levels or meeting physical activity recommendations (OR: 0.87, 95%CI: 0.69-1.09) was not related with the MetSyn score after controlling for potential confounders (p>.05). Moderate physical activity, MVPA, and meeting physical activity recommendations were related to a lower diastolic blood pressure (p<.05). No other relationships were observed (p>.05). While physical activity participation was not related with the MetSyn, lower diastolic blood pressure values were related to higher physical activity levels.
    Pediatric exercise science 04/2015; DOI:10.1123/pes.2014-0134
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    ABSTRACT: This study analyzed the pacing employed by young runners in 10,000 m time-trials under three dietary regimens of different carbohydrate (CHO) intakes. Nineteen boys (13-18 years-old) ate either their normal-CHO diet (56% CHO), high- (70% CHO), or low- (25% CHO) CHO diets for 48 h; the boys then performed a 10,000 m run (crossover design). The high-CHO diet led to faster final sprint (14.4 ± 2.2 km·h-1) and a better performance (50.0 ± 7.0 min) compared with the low-CHO diet (13.3 ± 2.4 km·h-1 and 51.9 ± 8.3 min, respectively, p < 0.05). However, the final sprint and performance time in the high-CHO or low-CHO diets were statistically not significantly different from the normal-CHO diet (13.8 ± 2.2 km·h-1 and 50.9 ± 7.4 min; p > 0.05). CHO oxidation rate during the constant load exercise at 65% of VO2max was elevated in high-CHO diet (1.05 ± 0.38 g·min-1) compared with low-CHO diet (0.63 ± 0.36 g·min-1). The rating of perceived exertion increased linearly throughout the trial, independently of the dietary regimen. In conclusion, the high-CHO diet induced higher CHO oxidation rates, increased running speed in the final 400 m and enhanced overall running performance, compared with low-CHO.
    Pediatric exercise science 04/2015; DOI:10.1123/pes.2014-0211
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    ABSTRACT: Childhood obesity is increasing alarmingly, and a strong association with chronic diseases has been established. Specific adipokines are released from the adipose tissue and relate with chronic diseases even in the paediatric population. Adiponectin levels are lower in obesity and increase with decreasing body weight. A few paediatric studies examining a possible relationship between resistin and obesity do not provide a clear picture. Most studies agree that visfatin levels appear elevated in childhood obesity. Exercise seems to increase adiponectin levels whereas resistin levels are reduced. The lack of data on the effects of acute and chronic exercise on visfatin levels precludes us from making safe conclusions as to what the effects of exercise (acute or chronic) would be on visfatin levels in children. Clearly, exercise has an impact on the adipose tissue and the release of adiponectin, resistin and visfatin. However, other factors affect the secretion rate of these adipokines from the adipose tissue; these factors should also be taken into consideration when examining the effects of exercise on adipokines. Gender, age, body composition, physical activity levels, mode and intensity of exercise are some of the factors that should be looked into in future studies.
    Pediatric exercise science 04/2015; DOI:10.1123/pes.2014-0072
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    ABSTRACT: Valid measurement of youth physical activity is important and self-report methods provide convenient assessments at the population level. There is evidence that the validity of physical activity self-report varies by weight category. The aim of this study was to assess the validity of the 3-Day Physical Activity Recall (3DPAR), separately among normal weight and overweight/obese Australian youth. Accelerometer-derived physical activity variables were compared with 3DPAR variables in 155 (77 females) 11-14 year olds from Adelaide, South Australia. In the whole sample, validity coefficients for self-reported moderate and moderate to vigorous physical activity were modest (rs=0.12-0.31) and similar across gender and weight status categories. Validity coefficients for self-reported vigorous physical activity were much stronger (rs=0.59-0.73) among overweight/obese than among normal weight participants. The validity of the 3DPAR in this study was low in the whole sample but varied according to physical activity intensity and the weight status of the child. Specifically, the 3DPAR may be appropriate for describing vigorous intensity physical activity among overweight and obese youth.
    Pediatric exercise science 04/2015; DOI:10.1123/pes.2014-0117
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    ABSTRACT: The aims of this study were to determine the effect of age, sex and race distance on velocity (v), stroke rate (SR), stroke length (SL) and stroke index (SI) of sub-elite adolescent swimmers in competition, and to investigate their pacing strategies during the 100 m and 200 m events. Video footage of 112 adolescent swimmers (56 female; 56 male), competing in the 100 m and 200 m freestyle events, in two age groups (12-14; 15-18 years) was recorded and subsequently analyzed. A MANOVA showed that all stroke parameters significantly differed between sexes and between race distances. The older adolescents had a higher v, a longer SL and a greater SI (p < .01) than the younger adolescents. There were significant interaction effects between age and sex for v, SL and SI. Most adolescents had a SL that was within 7% of that reported for 1992 Olympians, but had up to 16% lower SRs. Separate Friedman's ANOVAs showed that SL differed between successive race quarters for both age groups, both sexes and both race distances. It is likely that physical immaturity, inexperience in competition pacing and within-race fatigue strongly influence the performances of sub-elite adolescent front crawl swimmers.
    Pediatric exercise science 04/2015; DOI:10.1123/pes.2014-0114
  • [Show abstract] [Hide abstract]
    ABSTRACT: Although fitness and obesity have been shown to be independent predictors of cardiometabolic disease risk in obese children, this interaction is not well defined in non-obese children. The purpose of this study was to define the relationships between peak aerobic capacity, body composition, and fasting insulin levels in non-obese middle school children. 148 middle school children (mean age 11.0 ± 2.1 years, 49% male) underwent determination of BMI z-score (BMIz), fasting glucose, fasting insulin (FI), body composition by DXA scan [lean body mass (LBM) and body fat percentage (BF%)], and peak oxygen uptake per kg of LBM (VO2peak). Univariate correlations and multivariate regression analysis were used to identify independent predictors of FI using age, sex, BF%, BMIz, and VO2peak. FI was significantly related to VO2peak (r=-0.37, p<0.001), BF% (r=0.27, p<0.001), and BMIz (r=0.33, p=0.002). After inclusion in the multivariate model, VO2peak (p=0.018) and BMIz (p=0.043) remained significant predictors of FI, while age (p=0.39), sex (p=0.49), and BF% (p=0.72) did not. Among non-obese middle school children, FI is independently related to aerobic fitness after accounting for age, sex, and body composition. Public health efforts to reduce cardiometabolic disease risk among all adolescents should include exercise programs to increase cardiovascular fitness.
    Pediatric exercise science 04/2015; DOI:10.1123/pes.2014-0098
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    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 moderate-to-vigorous PA (MVPA). Utilizing a structural equation modeling technique, we tested a conceptual model linking parent and child perceptions of the neighborhood environment, parent support for PA, and child outdoor PA with children's afterschool MVPA. We found that child perception of the neighborhood environment and outdoor PA were positively associated with afterschool MVPA. In addition, parent support for PA positively influenced children's outdoor PA. The neighborhood environment and outdoor activity appear to play an influential role on children's afterschool PA behaviors.
    Pediatric exercise science 02/2015; DOI:10.1123/pes.2014-0139
  • [Show abstract] [Hide abstract]
    ABSTRACT: Perceived barriers to moderate-to-vigorous physical activity (MVPA) may contribute to the low rates of MVPA in adolescents. We examined the psychometric properties of scores from the Perceived Barriers to MVPA scale (PB-MVPA) by examining composite reliability and validity evidence based on the internal structure of the PB-MVPA and relations with other variables. This study was a cross-sectional analysis of data collected in 2013 from adolescents (N=507; Mage=12.40, SD=.62) via self-report scales. Using exploratory and confirmatory factor analyses, we found that perceived barriers were best represented as two factors representing internal (e.g., "I am not interested in physical activity") and external (e.g., "I need equipment I don't have") dimensions. Composite reliability was over .80. Using multiple regression to examine the relationship between perceived barriers and MVPA, we found that perceived internal barriers were inversely related to MVPA (β=-.32, p<.05). Based on results of the analysis of variances, there were no known-group sex differences for perceived internal and external barriers (p>.26). The PB-MVPA scale demonstrated evidence of score reliability and validity. To improve the understanding of the impact of perceived barriers on MVPA in adolescents, researchers should examine internal and external barriers separately.
    Pediatric exercise science 02/2015; DOI:10.1123/pes.2014-0067
  • Pediatric exercise science 02/2015; 27(1):34-8. DOI:10.1123/pes.2015-0033
  • Pediatric exercise science 02/2015; 27(1):39-41. DOI:10.1123/pes.2015-0034
  • Pediatric exercise science 02/2015; 27(1):1-2. DOI:10.1123/pes.2015-0025
  • Pediatric exercise science 02/2015; 27(1):26-9. DOI:10.1123/pes.2015-0031