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G De Vito

Publications and source records attributed to G De Vito.

8 recordsLinked to original sources
PubMed1995

Decrease of endurance performance during Olympic Triathlon.

The present study was carried out in order to quantify the athlete's endurance impairment after two out of three sequential events of Olympic Triathlon (OT). Furthermore the significance of ventilatory threshold (Tvent) and peak of oxygen uptake (VO2peak) as triathlete's performance predictors was assessed. Tvent and VO2peak were measured in six male triathletes performing an incremental treadmill test a week before an ad hoc triathlon event. The same test was applied immediately after the first two segments of the triathlon (1.5 km swim, 32 km bike). VO2peak and Tvent measured during the latter test were reduced compared to the first test. VO2peak decreased from 69 to 64 ml.kg-1.min-1 and Tvent from 58 to 51 ml.kg-1.min-1 p < 0.01), respectively. VO2peak and Tvent measured in the first test were well correlated (P < 0.05) to both running and cycling times. The Tvent measured during the second test was related to the running time but with a higher significance (p < 0.01) than in the first test. The impairment in the endurance performance induced by the first two segments of OT is an important aspect to consider both in training and in race strategy. These results also provide evidence that VO2peak and Tvent are good predictors of triathlon performance at least in cycling and running events.

Adult↗
PubMed1992

[Drop in cardiovascular and coronary mortality in Lombardia, 1969-1987. Evaluation of reliability of the estimates and possible explaining hypothesis].

The results of the present analysis indicate, from 1969 to 1987, a sharp and stable decline in cardiovascular (CVD) mortality in Italians aged 35-74 years (37.6% in males 53.6% in females). These trends were responsible for consistent reductions of total mortality (27.5% and 38% in the two gender groups, respectively), and for the increase of life expectancy. The decrease involved the two major components of CVD mortality, i.e. coronary heart disease (CHD) (23% in males and 44% in females) and cerebrovascular diseases (Stroke) (42.6% in the former and 51% in latter gender group). All these mortality decrements have been higher in the Lombardia Region. Comparing age-adjusted mortality rates in 1968 and 1987, it was possible to estimate that 23,040 deaths were saved in one year among the residents of this northern part of Italy, and the decrease of CHD mortality was responsible for about 30% of the total national decrement of CHD deaths, within comparable age strata. This is attributable both to the higher rates registered at the beginning of the studied period, and to the sharper decline observed. The social impact, in terms of reduction of deaths, was prominent for males. Among the northern male population, the amount of prevented deaths due to CHD and Stroke was equivalent (2072 vs 2172). Data from a MONICA Collaborating Center, located in the region--Area Brianza--, allow us to estimate, for coronary diagnoses reported on death certificates in the 1980s, acceptable levels of accuracy (Cohen's Kappa of .35, with 99% CI .27-.43) and sensitivity (87%). In comparison with earlier estimates carried out in the late 1970s, it is possible to hypothesize an increase of sensitivity over time for certified myocardial infarction diagnoses, which could have contributed to the underestimation of the observed decrements. In dealing with estimates of the reasons for these declines, only suggestions could be addressed because results of specific and comprehensive studies are not presently available. By comparing MONICA data with the results obtained in earlier surveys, it is possible to estimate that about 20 to 30% of the CHD decline, which occurred in the Region, might be attributed to the decrease of in-hospital coronary case-fatality. Moreover, major coronary risk factors (total cholesterol, blood pressure and cigarette smoking) show parallel positive changes, but their contribution in predicting the CHD downfall is difficult to evaluate on the basis of existing data.(ABSTRACT TRUNCATED AT 400 WORDS)

Adult↗
PubMed1991

Ambulatory blood pressure normalcy: the PAMELA Study.

Although ambulatory blood pressure monitoring is gaining in popularity, it still has important limitations in clinical use, particularly for the definition and diagnosis of hypertension. Various attempts have been made to calculate 'normal' or 'reference' values for ambulatory blood pressure, mostly by 24-h non-invasive monitoring in groups of 'normal' subjects. The most appropriate approach, however, is to compare 24-h ambulatory blood pressure values and casual or clinic blood pressure values in a random sample of a suitably large population. The PAMELA Study has been planned to obtain an epidemiological evaluation of 24-h ambulatory blood pressure values, and its design is described here. In the city of Monza, 2400 subjects aged between 25 and 64 years have been randomly selected according to World Health Organization Monitoring Cardiovascular Diseases (WHO-MONICA) project criteria within sex and age strata. In these subjects, clinic blood pressure, random-zero blood pressure, ambulatory blood pressure (24-h monitoring with SpaceLabs 90207; Redmond, Washington, USA), home blood pressure, electrocardiographic and echocardiographic indices, cardiovascular risk factors and psychological variables are being measured.

Adult↗
PubMed1990

Genetic polymorphisms in the Croatian ethno-linguistic minority of Italy.

Phenotype and gene frequencies of twelve genetic markers (ABO, RH, MNS, ACP1, ESD, PGD, PGM1, PGM2, HB, ALB, CP and HP) of the three Croatian communities (Acquaviva Collecroce, Montemitro and S. Felice del Molise) living in Southern Italy are reported. From the comparison with the surrounding Italian population and with Balkan populations, some instances of still incomplete genetic admixture can be inferred (ABO*A and O, ESD, PGD and PGM1).

Adolescent↗
PubMed1989

Critical fusion frequency in MS during mild induced hyperthermia.

By raising the body temperature of 0.5 degrees C the critical fusion frequency of a flickering light increases in normal subjects but decreases in multiple sclerosis (MS) patients. The change was present in 14 patients with definite MS and in 5 of 10 patients with probable MS. No clinical worsening was observed during the procedure or in the following hours.

Adult↗
PubMed1986

The fetus in the extrauterine environment.

The influence of environmental factors on early development is discussed beginning with studies on the preterm newborn, most of which compare preterms who have reached 40 weeks conceptional age with full term newborns in respect of neuropsychic development. They are therefore open to several methodological criticisms and have supplied often contradictory results. With ultrasound techniques it is now possible to compare the fetus with the preterm in respect of motor development at the same conceptional age. The variety of methods used and the limits of fetal observability, especially in the last weeks of gestation, nonetheless demand great prudence in the interpretation of data obtained by this new means. The incidence of various motor patterns was assessed in a group of 10 preterms at low risk for neurological damage by means of weekly video recordings. The preliminary results seem to indicate that many items in the motor repertoire do not change substantially at the approach to 40 weeks conceptional age and are similar to those described in the fetus.

Child Development↗
PubMedDate not supplied

[Evaluation of the socioeconomic status in epidemiological surveys: hypotheses of research in the Brianza area MONICA project].

Socio-economic status (SES) has been reported as a causative factor of increasing health inequalities in industrialized countries. The phenomenon has been particularly investigated for job related diseases, including cardiovascular disease and risk. The group of occupational medicine specialists in the world wide MONItoring program of CARdiovascular disease (WHO-MONICA Project) is now producing a number of hypotheses about the application of internationally defined criteria and tools for SES evaluation in the Italian area of the Project, Area Brianza. After a short review of some main conceptual and methodological problems, a proposal is presented of an SES index, derived from the pooled data of two population surveys carried out in this area. From a randomized sample of 3200 residents, 25-64 years old, stratified by sex and age decade, 1731 subjects, 594 females and 1137 males, employed at the time of the screening were extracted. Four variables were considered: age, education, occupational level and job-strain (according to the Karasek-Theorell model) by which each subject was classified in three levels--high, medium, low--of education and occupation, whose combination was used to obtain as many levels of socio-economic status. This a method of building an SES index is based on a sequence of approximations following two essential criteria: limitation of the variables to be surveyed, through standardized procedures; ability to identify the "low" SES category, presumably more at risk for disease.

Adult↗