Effect of the chronological age and sexual maturation on the time to exhaustion at maximal aerobic speed
Journal Title: Biology of Sport - Year 2007, Vol 24, Issue 1
Abstract
The purposes of this study were: a) to verify the effect of chronological age and sexual maturation on the time to exhaustion at VO2max (tlim) and; b) to examine the reproducibility of tlim in boys aged 10-15 years. Forty boys, divided into 4 groups, in accordance to the chronological age (G10-12 and G13-15) and sexual maturation (P1-P3 and P4-P5 levels for pubic hair), performed the following tests: 1) incremental test for determination of VO2max and; 2) all-out exercise bout performed at VO2max to determine the tlim. There was no difference of tlim (sec) between G10-12 and G13-15 (181.596.3 vs. 199105.5). While the two measures of tlim were moderately related (r=0.78), tlim from the second test (226.696.1 s) was higher than that of the first (191.379.2 s). We can conclude that the tlim is not influenced by chronological age and sexual maturation. Besides, tlim presents a lower reproducibility in children and adolescents.
Authors and Affiliations
FA Machado, LG Guglielmo, BS Denadai
Keywords
Related Articles
- EP ID EP58897
- DOI -
- Views 112
- Downloads 0
GSTP1, GSTM1, and GSTT1 polymorphisms in Tibetan mountaineers
Exposure to high altitude can increase the level of reactive oxygen species (ROS) in human beings. Physical exercises or working can exacerbate the effects of high altitude and further cause free radical mediated oxidati...
Examination of relationship between 30 second wingate test performance and spirometric respiratory functions in young adults
Objective: This work has been planed to investigate whether the correlation between one of the important component of the sports performance spirometric respiratory function (SRF) and 30 s Wingate Test (WT) parameters of...
The rate pressure product is greater during supine cycle ergometry than during treadmill running
Supine cycle ergometry (SCE) is used to assess cardiopulmonary fitness and reserves and to predict potential cardiopulmonary complications of cardiac patients and those undergoing abdominal and non-cardiac thoracic surge...
INGESTION OF DESIGNER SUPPLEMENTS PRODUCED POSITIVE DOPING CASES UNEXPECTED BY THE ATHLETES
Since the end of the last century, the sport community has been grappling with contamination and faking of dietary or nutritional supplements. Publication of the results of many studies on this problem has resulted in ed...
Anthropometric characteristics and somatotype of young Greek rowers
This study examined selected anthropometric characteristics of young rowers and compared them with those of senior national level athletes and untrained children, in order to establish a rowing specific anthropometric pr...