262 research outputs found
Anthropometric and motor characteristics of senegalese children with different nutritional histories
The effects of protein energy malnutrition (PEM) on the motor performance of 4.5-6.5-year-old Senegalese children were studied. Body dimensions included weight, lengths, circumferences, and four skinfolds. Motor performance tests included a 3-min endurance run, 4 X 10 m shuttle-run, distance throw, standing long jump and grip strength. The sample consisted of 147 children : 52 children who were hospitalized for severe undernutrition (severe UN group) during infancy but who had been nutritionally rehabilited ; 63 children who were never severely malnourished but who were chronically exposed to mild-to-moderate undernutrition up to the time of study (chronic UN group) ; and 32 well nourished children (well nourished group) from well-off households. After adjusting for sex and age, the well nourished group performed better than the severe UN and chronic UN groups. Principal components analysis resulted in two factors which explained 65% of the variance in anthropometry and motor performance. One was related to body size and the second to body composition. The three nutritional groups differed significantly in principal component scores for the two factors ; chronic UN and severe UN children also differed for the second factor. Body composition, especially low fat mass appeared to be an important feature for motor performance in chronically undernourished children. (Résumé d'auteur
Correlates of changes in BMI of children from the Azores islands
Objective: To model changes in body mass index (BMI), including its stability, and to investigate the association between physical activity, 1-mile run/walk and levels of gross motor coordination and BMI during 5 consecutive years.
Design: A longitudinal study of children 6 years of age at baseline followed at annual intervals over 5 years.
Subjects: A total of 285 children (143 boys and 142 girls) were enrolled in grade 1 (age 6 years) and followed through grade 5 (age 10 years).
Measurements: BMI was recorded and physical activity was assessed by questionnaire, aerobic fitness was evaluated with the 1-mile run/walk and gross motor coordination was measured with the KTK test battery (Korperkoordination test fur Kinder). Multilevel modelling techniques were for the primary analysis.
Results: Changes in BMI showed similar curvilinear trends in boys and girls, with ample inter-individual crossing trajectories that is, low tracking. Longitudinal changes in physical activity (PA) and aerobic fitness were not significantly associated with BMI-changes during the 5 years. Children who were more proficient in their motor coordination showed lower values of BMI during the 5 years.
Conclusions: BMI trajectories of both boys and girls show low tracking of BMI-values. Considerable inter-individual variation exists both in baseline BMI-values and changes (velocity and acceleration) over time. PA and fitness were not associated with BMI-changes, but gross motor function was negatively associated with BMI-changes. No gender-specific associations were found. If confirmed in other populations these observations could be translated in the promotion of physical activities that improve gross motor function in children aged 6-10 years. This seems to be of major importance for the physical education curriculum of primary school children
Physical Activity in Rural African School-Aged Children and Adolescents
In industrialized countries, reduced levels of physical
activity (PA) associated with increased prevalence of the
so-called âhypokinetic diseasesâ stimulates the interest in
research in PA and its correlate
Tracking of fatness during childhood, adolescence and young adulthood: a 7-year follow-up study in Madeira Island, Portugal
Aims: Investigating tracking of fatness from childhood to adolescence, early adolescence to young adulthood and late adolescence to young adulthood. Subjects and methods: Participants from the Madeira Growth Study were followed during an average period of 7.2 years. Height, body mass, skin-folds and circumferences were measured, nine health- and performance-related tests were administered and the Baecke questionnaire was used to assess physical activity. Skeletal maturity was estimated using the TW3 method. Results: The prevalence of overweight plus obesity ranged from 8.2â20.0% at baseline and from 20.4â40.0% at followup, in boys. Corresponding percentages for girls were 10.6â 12.0% and 13.2â18.0%. Inter-age correlations for fatness indicators ranged from 0.43â0.77. BMI, waist circumference and sum of skin-folds at 8, 12 and 16-years old were the main predictors of these variables at 15, 19 and 23-years old, respectively. Strength, muscular endurance and aerobic ïŹtness were negatively related to body fatness. Physical activity and maturation were independently associated with adolescent (15 years) and young adult (19 years) fatness. Conclusions: Over 7.2 years, tracking was moderate-to-high for fatness. Variance was explained by fatness indicators and to a small extent by physical ïŹtness, physical activity and maturation
Corpo, maturação biolĂłgica e actividade fĂsica: um olhar interactivo em crianças e jovens madeirenses
Cada vez mais a sociedade moderna é olhada através da sua condição
fĂsica, enquanto factor de bem-estar, saĂșde, qualidade de vida e longevidade
dos seus membros.
Os indicadores demogråficos actuais da população madeirense
apontam no sentido de uma considerĂĄvel componente juvenil, adolescente e
jovem. No entanto, a evolução demogråfica prevista, decorrente de um
acentuado decréscimo da natalidade, leva a prever um comportamento diverso
da pirĂąmide de idades, assumindo particular ĂȘnfase as questĂ”es relacionadas
com o estudo e a investigação do corpo, a procura de padrÔes, a descrição
normativa, a interpretação das mudanças e o espaço morfológico externo, que
se vem enquadrar no território de investigação reservado à somatotipologia
NĂveis e padrĂ”es de actividade fĂsica de crianças e jovens de Calanga: da simples descrição Ă sua relevĂąncia em termos funcionais
A actividade fĂsica habitual (AF) Ă© um comportamento associado ao estado de saĂșde dos sujeitos de qualquer idade. Os nĂveis de AF das populaçÔes de paĂses africanos num estado de transição econĂłmica sĂŁo pouco conhecidos. O propĂłsito central deste capĂtulo foi o estudar de nĂveis de AF de crianças e adolescentes de uma comunidade rural de Moçambique (Calanga). A AF fĂsica foi avaliada recorrendo ao monitor de AF Actigraph modelo 7164 e a um questionĂĄrio com questĂ”es acerca do modo e frequĂȘncia de AF
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