Physical activity and genetic influences in risk factors and aging: a study on twins

International Journal of Sports Medicine
M PittalugaP Parisi

Abstract

The association between physical activity and a decreased risk of age-correlated diseases appears to be well established. Nevertheless, the relation between past life style and current health in the elderly is likely to be affected by interactions of environmental and genetic factors in mediating the effects of exercise on disease prevention. As a contribution to this general issue, a retrospective twin study was undertaken so as to take advantage of the classical twin method in assessing genetic influences on health status in the elderly. A more specific aim was to possibly identify and compare genetically identical elderly twins with substantial differences in previous exposure to physical activity, but otherwise similar life style factors and events, thereby allowing the application of the co-twin case-control method, a powerful experimental approach in which even a few cases may prove significant. The study involved the assessment of general health status (based on structured interviews, clinical examination and several functional and laboratory analyses) and life style in 27 male twin pairs, aged 71.0 +/- 2.6 and classified (through DNA analysis) as 13 monozygotic and 14 dizygotic pairs. Past and present physical activity ...Continue Reading

Citations

Sep 17, 2013·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·M P HerringM S Bray

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