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Document Typology: Research
Methodology addressed by the publication:Parents pedagogy
Title of document: environmental physical activity
Name of author(s): Jadvyga Petrauskiene,Ramune Kalediene
Name of publisher: Pubget ,magazine Medicine 2009
Language of the publication: English
Language of the review: English
In the last decades many studies have demonstrated the cosmophysical influences on human homeostasis. The aim of the study was to explore links between environmental physical activity--solar, geomagnetic, cosmic ray--and monthly number of newborns in general and, separately, for each genderThe distribution of newborns' number (n=286,963) over 96 months in the Republic of Lithuania from 1995 to 2002 was compared with the monthly cosmophysical indices nine months before the month of delivery. For the comparison of gender ratio, other 52,289 newborns at the same time were studied in a big Israeli hospital. Pearson's correlation coefficients and their probabilities between the newborns' number and cosmophysical indices were established. RESULTS: A strong and significant inverse correlation of monthly newborns' number with monthly solar activity indices (r=-0.72, p<0.0001) and similar, but positive, with cosmic ray activity was shown (r=0.67, p<0.0001).
Reviewer's comments on the document:
The monthly number of newborns of both genders is strongly and significantly related to the level of monthly cosmic ray and, inverse, to solar activity indices nine months before the month of delivery. Geomagnetic activity was not significantly related to the monthly number of newborns. The subject and mechanism of these relationships needs further investigation.
The review found inconclusive evidence for an association etween ethnicity and physical activity in children and a positive association in adolescents. These findings suggest that in childhood there are no ethnic differences in physical activity. These differences might
develop later when children grow into adolescence. For inactivity, the same pattern can be seen. No association between ethnicity and inactivity was found for children (partly because of the limited number of studies), whereas for adolescents an inverse association was found, indicating that minority populations are more often inactive. Therefore, public health efforts aimed at promoting hysical activity and decreasing sedentary behaviors should particularly target adolescents from ethnic minorities.
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