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 participants (age: 12.5 ± 0.5 y; body mass: 48.6 ± 10.2 kg, height: 155.7 ± 10.0cm) belonging to a top level Brazilian soccer club were evaluated at four time points across a single semester. None of the assessed players had reached PHV. The data from the four evaluations were averaged and multiple linear regression analysis conducted. For CMJ, the model explained 42.88% of the variance (R2 = 42.88; p < .000); sT concentration was the primary contributor (R2 = 32.84) and the YPHV contributed 9.95% of the variance. The model explained 28.50% (p < .000) of the variance in Yo-Yo. The sT was the primary and single significant contributor (R2 = 21.32). A significant difference was noted between high and low testosterone groups divided a posteriori to CMJ performance (t = 3.35; p = .001). These results suggest an important role for hormonal status in interpreting physical performance in preadolescent soccer players.
journal_name
Pediatr Exerc Scijournal_title
Pediatric exercise scienceauthors
Moreira A,Mortatti A,Aoki M,Arruda A,Freitas C,Carling Cdoi
10.1123/pes.25.2.186subject
Has Abstractpub_date
2013-05-01 00:00:00pages
186-97issue
2eissn
0899-8493issn
1543-2920pii
2012-0123journal_volume
25pub_type
杂志文章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
pub_type: 杂志文章,多中心研究
doi:10.1123/pes.21.4.400
更新日期:2009-11-01 00:00:00
abstract:PURPOSE:There has long been a debate regarding the importance of talent versus training in athletic performance. In this study we sought to quantify their relative contributions to the race performance of high-school sprinters. METHODS:Using race results from the athletic.net website, we identified high-school athlete...
journal_title:Pediatric exercise science
pub_type: 杂志文章
doi:10.1123/pes.2016-0024
更新日期:2016-11-01 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
pub_type: 杂志文章
doi:10.1123/pes.23.1.49
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
pub_type: 杂志文章
doi:10.1123/pes.2017-0034
更新日期:2018-08-01 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
pub_type: 杂志文章
doi:10.1123/pes.22.2.183
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:The comparison of habitual physical activity and sedentary time in teenagers and young adults with cerebral palsy (CP) with typically developed (TD) peers can serve to quantify activity shortcomings. METHODS:Patterns of sedentary, upright, standing, and walking components of habitual physical activity were com...
journal_title:Pediatric exercise science
pub_type: 杂志文章
doi:10.1123/pes.2017-0285
更新日期:2019-02-01 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
pub_type: 已发布勘误
doi:10.1123/pes.2016-0046
更新日期:2016-02-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1123/pes.2015-0116
更新日期:2015-11-01 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
pub_type: 杂志文章,评审
doi:10.1123/pes.21.2.130
更新日期:2009-05-01 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
pub_type: 杂志文章
doi:10.1123/pes.2015-0081
更新日期:2016-02-01 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
pub_type: 杂志文章
doi:10.1123/pes.24.4.622
更新日期:2012-11-01 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
pub_type: 杂志文章
doi:10.1123/pes.2015-0088
更新日期:2016-05-01 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
pub_type: 杂志文章
doi:10.1123/pes.20.2.198
更新日期:2008-05-01 00:00:00
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
pub_type: 杂志文章
doi:10.1123/pes.24.2.312
更新日期:2012-05-01 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
pub_type: 杂志文章
doi:10.1123/pes.22.2.301
更新日期:2010-05-01 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
pub_type: 杂志文章
doi:10.1123/pes.22.4.497
更新日期:2010-11-01 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
pub_type: 杂志文章
doi:10.1123/pes.21.3.257
更新日期:2009-08-01 00:00:00
abstract::The assessment of maximal aerobic power ( V ...
journal_title:Pediatric exercise science
pub_type: 杂志文章,评审
doi:10.1123/pes.2018-0191
更新日期:2019-05-01 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
pub_type: 杂志文章
doi:10.1123/pes.2018-0167
更新日期:2018-11-01 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
pub_type: 杂志文章
doi:10.1123/pes.2016-0076
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
pub_type: 杂志文章
doi:10.1123/pes.2014-0094
更新日期:2015-05-01 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
pub_type: 杂志文章
doi:10.1123/pes.2020-0073
更新日期:2020-09-22 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
pub_type: 杂志文章
doi:10.1123/pes.2015-0191
更新日期:2016-08-01 00:00:00
abstract::Second-generation antipsychotic (SGA) medications, used to treat youth for a wide-range of mental health conditions, are associated with excessive weight gain and other comorbidities, placing these individuals at high risk for cardiovascular disease. Little is known about the effect of physical activity (PA) on cardio...
journal_title:Pediatric exercise science
pub_type: 杂志文章
doi:10.1123/pes.2014-0076
更新日期:2014-11-01 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
pub_type: 杂志文章
doi:10.1123/pes.2016-0185
更新日期:2017-08-01 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
pub_type: 杂志文章,meta分析,评审
doi:10.1123/pes.2013-0063
更新日期:2014-05-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1123/pes.2014-0069
更新日期:2015-02-01 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
pub_type: 杂志文章
doi:10.1123/pes.24.2.170
更新日期:2012-05-01 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
pub_type: 杂志文章,评审
doi:10.1123/pes.2017-0023
更新日期:2017-11-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1123/pes.23.3.399
更新日期:2011-08-01 00:00:00