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 performances. Forty-four (untrained) 11- to 19-year-old boys were grouped by age: 11-13 years, 14-16 years, and 17-19 years. All participants underwent anthropometric measurements, a flexibility test, a vertical jump test, a grip strength test, isokinetic strength measurements (Cybex Norm), and a Wingate anaerobic power test. One-way ANOVA results indicated age-related increases in muscle strength and power. High correlation coefficients that were found among age and strength and anaerobic power indices almost disappeared when fat-free mass (FFM) was controlled for, indicating that the amount of variance in these indices that was explained by age is mostly shared by FFM. In addition, stepwise linear regression models indicated that FFM was the main predictor of strength and power performances. Thus, FFM was the best scaling variable for body size when comparing these age groups of Saudis. Until wide-range normal representative values for isokinetic strength and anaerobic power for Saudi children and adolescents are available, the present study's results can serve as a reference for these indices.
journal_name
Pediatr Exerc Scijournal_title
Pediatric exercise scienceauthors
Almuzaini KSdoi
10.1123/pes.19.3.319subject
Has Abstractpub_date
2007-08-01 00:00:00pages
319-33issue
3eissn
0899-8493issn
1543-2920journal_volume
19pub_type
杂志文章,随机对照试验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
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
pub_type: 临床试验,杂志文章
doi:10.1123/pes.25.1.12
更新日期:2013-02-01 00:00:00
abstract::The aims were to develop and validate a VO(2peak) prediction equation from a treadmill running test in active male adolescents. Eighty-eight athletes (12-18 yrs.) performed a maximal exercise test on a treadmill to assess the actual VO2peak and a 20m Shuttle-Run-Test (20mST). A step-wise linear regression analysis was...
journal_title:Pediatric exercise science
pub_type: 杂志文章,随机对照试验
doi:10.1123/pes.22.4.624
更新日期:2010-11-01 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::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
pub_type: 杂志文章
doi:10.1123/pes.2014-0152
更新日期:2015-08-01 00:00:00
abstract::As the incidence of childhood obesity increases, there is a need to promote leisure time physical activity. Traditional approaches to promote the population physical activity levels have shown at best moderate improvements. High percentage of children today carry a cell phone, thus the use of this portable device seem...
journal_title:Pediatric exercise science
pub_type: 评论,杂志文章
doi:10.1123/pes.2017-0004
更新日期:2017-02-01 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
pub_type: 评论,杂志文章
doi:10.1123/pes.2017-0011
更新日期:2017-02-01 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::Children differ from adults in many muscular performance attributes such as size-normalized strength and power, endurance, fatigability and the recovery from exhaustive exercise, to name just a few. Metabolic attributes, such as glycolytic capacity, substrate utilization, and VO2 kinetics also differ markedly between ...
journal_title:Pediatric exercise science
pub_type: 杂志文章,评审
doi:10.1123/pes.24.1.2
更新日期:2012-02-01 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: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: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
pub_type: 杂志文章
doi:10.1123/pes.2016-0213
更新日期:2017-08-01 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::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
pub_type: 杂志文章,随机对照试验
doi:10.1123/pes.19.1.82
更新日期:2007-02-01 00:00:00
abstract::This study investigated the feasibility and reliability of a 12 × 25-m repeated sprint test with sprints starting every 25-s in children aged 6-8 years (36 boys, 41 girls). In all subjects, total sprint time (TST) demonstrated high test-retest reliability (ICC: r = .98; CV: 0.7% (95% CI: 0.6-0.9)). While sprint time v...
journal_title:Pediatric exercise science
pub_type: 杂志文章
doi:10.1123/pes.23.4.549
更新日期:2011-11-01 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: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
pub_type: 杂志文章
doi:10.1123/pes.2019-0247
更新日期:2020-07-29 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
pub_type: 杂志文章
doi:10.1123/pes.22.1.60
更新日期:2010-02-01 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
pub_type: 杂志文章,随机对照试验
doi:10.1123/pes.22.3.454
更新日期:2010-08-01 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::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 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::The strength of time-dependent correlations known as stride interval (SI) dynamics has been proposed as an indicator of neurologically healthy gait. Most recently, it has been hypothesized that these dynamics may be necessary for gait efficiency although the supporting evidence to date is scant. The current study exam...
journal_title:Pediatric exercise science
pub_type: 杂志文章
doi:10.1123/pes.2013-0117
更新日期:2014-08-01 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:PURPOSE:To understand the extent different types of acute exercise influence cerebral blood flow during and following exercise in children. METHODS:Eight children (7-11 y; 4 girls) completed 2 conditions: high-intensity interval exercise (HIIE; 6 × 1-min sprints at 90% watt maximum) and moderate-intensity steady-state...
journal_title:Pediatric exercise science
pub_type: 杂志文章
doi:10.1123/pes.2018-0234
更新日期:2019-08-01 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: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
pub_type: 杂志文章
doi:10.1123/pes.2019-0059
更新日期:2020-02-01 00:00:00
abstract::This study investigated the impact of renovation and redesign of a university preschool's outdoor space on children's sedentary behavior, light activity, and moderate-to-vigorous-physical-activity (MVPA) during unstructured recess. Physical activity was measured by accelerometry and direct observation in two independe...
journal_title:Pediatric exercise science
pub_type: 杂志文章
doi:10.1123/pes.24.4.507
更新日期:2012-11-01 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