Donatella Di Corrado

Attentional processes and blood lactate levels

The accumulation of lactate in the blood after a high-intensity exercise is associated to an increase of lactate extractions by the brain. However, no information has been provided about the influences of blood lactate on cognitive performances and, in particular, on attention. The present study was carried out to examine the association of high blood lactate levels, induced with a maximal cycling, with two different attentional tasks. The study was carried out on 17 male sprinters who performed exhaustive exercise. Before the exercise, as well as 5 and 10 min after the exhaustion, blood lactate was measured and intensity as well as selectivity of attention of each subject were evaluated. Same measurements were performed on 6 out of 17 subjects who accepted to receive an intravenous infusion of a lactate solution. In both experimental conditions, an inverse relation between scores in both aspects of attention and blood lactate levels was observed.

The second-to-fourth digit ratio correlates with aggressive behavior in professional soccer players

The aim of this study was to test the hypothesis that high levels of testosterone during prenatal life, testified by a low second-to-fourth digit ratio (2D:4D), as well as in adulthood affect the aggressive behavior of professional soccer players. Using 18 male professional players from a first level Italian Soccer Team we calculated: i) the 2D:4D ratio of the right hand, ii) the number of yellow and red cards per game, iii) the mean salivary testosterone concentration (Sal/T) and iv) the handling of aggressive impulses as assessed by the Picture Frustration test (PFT). Soccer players with a lower 2D:4D ratio had a higher number of fouls per game. A significant negative correlation was observed between Sal/T and 2D:4D ratio, as well as between 2D:4D ratio and the aggressiveness of players. By contrast, a significant positive correlation of Sal/T and fouls/game score and PFT was detected. No significant correlation was detected between 2D:4D or Sal/T and the playing position of players. Results of this study revealed that in professional soccer players, aggressive behavior, with the consequent increased risk of fouls during the game, is more likely to occur in individuals with high testosterone levels, not only in adulthood, but also during their intrauterine life.

The second-to-fourth digit ratio correlates with the rate of academic performance in medical school students

Prenatal androgens have important organizing effects on the development and future behavior of the brain. The second-to-fourth digit length ratio (2D:4D) has been proposed as a marker of these prenatal androgen effects, with a relatively longer fourth finger indicating higher prenatal androgen exposure. 2D:4D has been shown to predict the success of men who play sports and of financial traders. However, to date little is known regarding the effects of prenatal androgens on academic performance, for example, admission to and success in a highly competitive university system such as the state-run Italian medical schools. Here, we report the findings of a study conducted at the University of Catania Medical School, Italy, in which the 2D:4D ratio was sampled in a group of 48 male students. The 2D:4D ratios were found to be correlated with the performance of the students on the admission test to the medical school, their salivary testosterone levels and their aggressiveness; however, no correlation was observed with the mean score on exams during the course of study. Our results suggest that pre and/or postnatal androgens increase performance in situations that require prompt decision-making and the ability to take risks, but do not influence performance when a more analytical and planned approach is called for.

Anthropometrics Related to the Performance of a Sample of Male Swimmers

The main purpose of the present investigation of 21 elite male swimmers was to assess whether the Ape Index (the ratio between the individuals arm span and height) and/or the second-to-fourth digit length ratio (2D:4D), i.e., the ratio between the length of the second and the fourth fingers of the right hand, are associated with the performance of high-level swimmers, when mood and / or executive function are covaried. The results showed no statistically significant correlation between the Ape Index and 2D:4D ratio, performance, executive function, or mood. In contrast, statistically significant correlations were found between 2D:4D ratio and performance, executive function, and mood. Regressions indicated that 2D:4D ratio and not Ape Index is related to the performances of a sample of male swimmers.

Attention and Blood Lactate Levels in Equestrians Performing Show Jumping

In equestrian show jumping, attention is particularly important to ensure maximum accuracy. Due to the anaerobic nature of the jumping and its requirement for precision coordination between human and horse, there may be a relation between the onset of lactic threshold and decrease in attention. In 12 healthy and injury-free equestrians (6 men, 6 women), the effects (blood lactate and glucose) of a show jumping course (250 m long with eight vertical obstacles with a height of 1.15 m height) on capacity and selectivity of attention was assessed. A typical reaction time paradigm and test of divided attention were administered. At the end of the course a significant increase of blood lactate was observed, whereas blood glucose did not significantly change. A deterioration of attention (intensity and selectivity) and a worsening of performance with increasing of blood lactate were observed. The present results led to the conclusion that the increase in blood lactate that occurs in riders executing a show jumping course is associated with worsening of both attentive capabilities and performance.

Vividness and transformation of mental images in karate and ballet.

While imagery research has become popular in recent years, little research has specifically investigated differences in imagery ability between open- and closed-skill sport activities. The purpose of this study was to investigate whether the type of task, open or closed, affects vividness and controllability differently. Thirty female classic dancers (closed skill), 30 female karate athletes (open skill), and 30 female non-athlete students, between 14 and 20 years of age (M = 17.0, SD = 1.6), participated. They completed the Vividness of Visual Imagery Questionnaire, the Vividness of Movement Imagery Questionnaire, and the Subtraction of Parts Task. There was no difference in imagery ability between open- and closed-skill sport groups. Furthermore, dancers and karatekas had higher mean scores on imagery ability than the non-athlete group. A positive correlation was observed between the two questionnaires, supporting findings on the componential basis of imagery. This study contributed to increase the research in the specific area of open- and closed-skill sports and imagery ability.

Self-Efficacy, Emotional States, and Performance in Carom Billiards

Based on an integrative approach to the study of the emotional–cognitive–motor linkage in sport competition, the purpose was to examine the mediating role of emotion-related (psychobiosocial) states in the relationship between self-efficacy (technical and cognitive) and performance in carom billiards. Forty-five male players of master or intermediate categories, between 30 and 74 years of age (M = 51.2, SD = 10.8), participated in the study. Measures included scores of technical and cognitive self-efficacy, functional (i.e., facilitative to performance) and dysfunctional (i.e., debilitative to performance) psychobiosocial states, and performance outcome. The assessment took place prior to one game of a national or an international competition. Results showed technical self-efficacy, cognitive self-efficacy, functional states, and performance to be significantly and positively related among them. Functional psychobiosocial states mediated the effect of both technical and cognitive self-efficacy on performance. Overall, the findings supported an integrative approach to the study of the linkage among cognition, emotion, and action in sport.

Biological underpinnings of mood and the role of physical exercise

Physical movement is suggested to the common population by numerous medical institutions, because it is a significant instrument for improving public health. On the other hand, physical movement can also be harmful, particularly when performed in a very extreme mode. Different biological and psychological indicators have been used to optimize competitive readiness. On the psychological part, mood states have been revealed to be susceptible to modifications in physical exercise. On the biological side, technical advances have been made by the introduction of non invasive assessment of biomarkers. This article reviews the research on the Profile of Mood States effects associated with sport and exercise (occasional and intense) and biological markers. The series of studies reveals relations between biological markers and mood states, and sustains the conclusion that hormonal responses indicate physiological processes that produce and are affected by psychological processes.

Successfully aging. choice of life or life that choices

PETRALIA MARIA CRISTINA1, COCO MARINELLA2, MACI TIZIANA3, MINISSALE CHIARA4 , CONCETTA DE PASQUALE4, D’ORTO GIANLUCA4, MARIA SOFIA BASILE2, DONATO EZIO5, MANIACI MARIO5, COMMODARI ELENA6, DI NUOVO SANTO6, PERCIAVALLE VINCENZO2, DI CORRADO DONATELLA7, GUARNERA MARIA7, PIRRONE CONCETTA6, CASTELLANO SABRINA1, PLATANIA SILVIA2, RAMACI TIZIANA7, BELLOMO MARIA7, MAGGIO CLAUDIO4, SEHILI AMEL4, COCO LUCIO SALVATORE GIOVANNI4, NAPOLITANO SALVATORE8, ASCIONE ANTONIO8, PERCIAVALLE VALENTINA6, BUSCEMI ANDREA9 1Department of Biomedical and Biotechnological Sciences and Department of Educational Sciences, University of Catania 2Department of Biomedical and Biotechnological Sciences, University of Catania 3Department of Mental Health of ASP 3 in Catania Alzheimer Center Psychogeriatry 4University of Catania 5Virgin Active Catania 6Department of Educational Sciences, University of Catania 7Department of Human and Social Sciences, Kore University, Enna 8Department Physical Education and Wellness, University of Naples “Parthenope” 9Horus Cooperative Social, Ragusa