Angelo Cataldo

Plasma redox response of Sicilian Opuntia Ficus Indica juice in young physically active women

It is known amateur female athletes show an altered redox status [1] and the consumption of Opuntia Ficus Indica (OFI) decreases oxidative stress (OS) in healthy humans [2]. Therefore, the aim of this study was to investigate whether the supplementation with Sicilian OFI juice affected plasma redox balance following a maximal effort test in young physically active women
 . This study was randomized, double blind, placebo controlled and crossover design. Eight women (23.25±2.95 years old, weight of 54.13±9.05 kg, height of 157.75±0.66 cm and BMI of 21.69±0.66 kg/m2) were randomly divided into 2 groups and each group was supplied with either 50 ml OFI, diluted to 170 ml with water, or 170 ml Placebo containing the same concentration of fruit juice ingredients except for Vitamin C and indicaxanthin. They consumed OFI or Placebo every day for 3 days before of effort test on cycle ergometer and continued to take it for 2 consecutive days after testing. Blood samples were taken before and after the effort test without supplementation (baseline), pre- and post-test, 24 h and 48 h post-test with OFI or Placebo supplementation. H2O2 levels and total antioxidant capacity (PAT) were measured with photometer and resonance Raman spectroscopy [1,2]. The differences within and between groups were calculated with ANOVA analysis and considered significant with P<0.05. OFI group showed a significant lower quantity of H2O2 than Placebo group after the effort test. PAT levels of OFI group were significantly higher than pre/post those of baseline and 48 h post-test of Placebo group. In conclusion, OFI supplementation might to be used to restore redox balance after intense exercises in moderately trained women.

Relationship between wingate cycle test and 2000m rowing ergometer performance in youth athletes

During 2000m indoor rowing performances, the estimated aerobic and anaerobic contribution are 65-75% and 25-35%, respectively2. In considering that anaerobic power could be an important predictor of performance1, the aim of this study was to analyse the relationship between the power outputs during a Wingate anaerobic test (WAnT) on a cycling ergometer and a 2000m rowing ergometer performance in young rowers. In two separate days, 11 young (14.9±1.1yrs) male rowers performed a 2000m indoor rowing ergometer performance and a 30s WAnT on a cycling ergometer. WAnT peak power (PP) and mean power (MP), and 2000m time indoor rowing performance (t2000) were collected. Moreover, PP and MP were normalized with respect to body mass. Pearson correlation coefficients (r) were used to determine the association between t2000 and absolute and normalized PP and MP values. Absolute PP and MP were 888.1±133.2W and 548.5±74.4W, respectively. The relative picture for normalized values was 13.4±1.5 W·kg-1 and 8.2±0.6 W·kg-1. High associations emerged between t2000 (431.5±19.5s) and absolute PP (r=-0.900, P= 0.05) values, whereas no significant relationship was observed for normalized PP (r=-0.585, P=0.058) and AP (r=-0.561, P=0.072) values. These findings indicate that PP and MP could be considered significant predictors of 2000m rowing ergometer performances, substantiating also the relevance of the anaerobic energy pathways to the 2,000m rowing performance.

Race profiles of rowers during the 2014 Youth Olympic Games

SISMES VIII NATIONAL CONGRESS Rome, 7–9 October 2016

Relationship between Wingate test and vertical jump in young female volleyball players

SISMES VIII NATIONAL CONGRESS Rome, 7–9 October 2016