Analysis of power output time series in response to supramaximal exercise: an approach through dynamic factor analysis.

The responses to supramaximal exercise testing have been traditionally analyzed by means of standard parametric and nonparametric statistics. Unfortunately, these statistical approaches do not allow insight into the pattern of variation of a given parameter over time. The purpose of this study was to determine if the application of dynamic factor analysis (DFA) allowed discriminating different patterns of power output (PO), during supramaximal exercise, in two groups of children engaged in competitive sports: swimmers and soccer players.

Influence of long-term exercise training on submaximal and peak aerobic capacity and locomotor economy in adult males with Down's syndrome.

Background: The effect of exercise training on submaximal aerobic capacity and locomotor economy (LE) of Down's syndrome (DS) individuals has never been analyzed and their peak physiological adaptability to long-term physical conditioning is poorly understood. Thus the purpose of the present study was to determine whether DS males could improve their submaximal and peak aerobic capacity and LE after a 28-week training program.

Materials/methods: Twelve Caucasian DS males aged 34.

Between-day variability of net and gross oxygen uptake during graded treadmill walking: effects of different walking intensities on the reliability of locomotion economy.

There have been few studies of clinical relevance conducted on the reliability of walking economy. This study was designed to determine if walking economy reproducibility increases as a function of walking intensity, and if there is any advantage in expressing walking economy as net oxygen uptake (VO2) rather than gross VO2 for reproducibility purposes. Sixteen participants (9 males, 7 females; mean age, 22.