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Biomedical subjects

D Garnier

Publications and source records attributed to D Garnier.

At least 91 records · Page 5Linked to original sources

High levels of habitual physical activity in west African adolescent girls and relationship to maturation, growth, and nutritional status: results from a 3-year prospective study.

This study examines energy expenditure and physical activity levels for a sample of 40 adolescent girls of the Sereer ethnic group of rural Senegal. The girls were 13.3 +/- 0.5 years at the start of the study (June 1997) and were followed annually for the next 2 years during puberty. Data collected during each round included: 1) pubertal status (as assessed by breast development and occurrence of menarche); 2) selected anthropometric dimensions (weight, stature, arm circumference, and six skinfolds); and 3) physical activity levels quantitatively assessed using CSA accelerometers. During rounds 1 and 3, activity was also qualitatively reported by direct minute-by-minute observations. A food consumption survey was performed once during the 3(rd) round, using an individual food weighing method. Girls of this sample had high levels of energy expenditure with daily physical activity levels (PALs) ranging from 1.70 to 1.85 multiples of basal metabolic rate. Energy intakes were, on average, sufficient to meet energy and protein requirements, although micronutrient deficiencies were likely to exist. Activity levels declined with age between the 1(st) and 3(rd) rounds. Stepwise regression analyses showed that stature was negatively correlated with both total daily and day-time activity, whereas the body mass index was positively associated with this measure. Pubertal status and subcutaneous fatness were not significant predictors of activity levels. The contribution of these adolescent girls to the everyday tasks of the household was considerable. They spent more than 3 hours 30 minutes per day in domestic duties.

Adolescent↗

Habitual physical activity of Senegalese adolescent girls under different working conditions, as assessed by a questionnaire and movement registration.

OBJECTIVE: The aim of this study was to measure habitual physical activity in a group of Sereer adolescent females from Senegal. The hypothesis tested was that physical activity levels of adolescent Senegalese girls differ according to location and living conditions and may have a negative impact on growth and nutritional status. DESIGN: Studies of physical activity within the framework of a longitudinal study of growth during puberty. METHODS: All the adolescents were born and had been raised in the same rural communities, but some worked as maids in the cities during the dry season (migrants) while the others remained in the villages all year round in order to help their families in daily domestic and agricultural tasks (non-migrants). The study was undertaken in both rural and urban settings on a subsample of 40 migrant and 40 non-migrant girls aged 13.4-15.3, drawn from a cohort of 406 adolescents followed up since 1995. Nutritional status was estimated from anthropometric measurements; sexual maturation was based on stage of breast development and occurrence of menarche. Intensity and patterns of physical activity were derived from movement registration by accelerometry for a 3-day period. The nature and frequency of daily tasks were evaluated by questionnaires. RESULTS: As a whole, the adolescents studied here were smaller, thinner and less mature than girls of the same age from developed countries. Migrants weighed 3.5 kg more than nonmigrants and had more muscularity and a thicker fat subcutaneous layer. The day-to-day reliability of accelerometry counts was excellent (intraclass correlation coefficient: 0.90. 95% CI: 0.85-0.93). Mean daily (24 h) physical activity counts were higher for migrants than for non-migrants. Migrants spent more time engaged in moderate to heavy activity than did non-migrants (9.3 h/24 h versus 6.1 h/24 h). Non-migrants slept or were inactive for a longer period than migrants (7.6h/24h versus 6.3 h/24h). They also rested for a longer period of the day (2.1 h/24 h versus 0.8 h/24 h). When examining the influence of maturational status on physical activity, there was a clear difference between the two groups: the less mature migrants were more active, whereas the reverse was true in villages, where girls at the end of puberty reached higher intensity indices. CONCLUSIONS AND IMPLICATIONS: In both situations, the activity level was high. The nutritional status of migrants was better despite a heavier work load. Differences could be explained by better living conditions and food intake in cities.

Adolescent↗

[Scattered arterioveinous fistulae of the lung associated with alcoholic cirrhosis : about one case complicated by neurological involvement (author's transl)].

We report case of 49 years old woman suffering from severe alcoholic cirrhosis and presenting arterioveinous fistulae of the lung which evidence was given by selective arteriography. Quantitative analysis of vasoactive intestinal polypeptide show no modification ; mecanism of the opening of fistulae could no be found. This observation is noteworthy in consideration of lung lasting evolution (4 years) and out come of neurological complication (must likely due to cortical phlebitis).

Arteriovenous Fistula↗