title: CHANGES IN SOMATOTYPE CHARACTERISTICS IN THE MIDDLE-AGED BULGARIAN MEN.
abstract: OBJECTIVE
  the objective of this cross-sectional research was to outline the different somatotypes and the trends in the changes of the three basic components (endomorphy, mesomorphy and ectomorphy) among the middle-aged Bulgarian men.
  
  
  METHODS
  the Heath-Carter method was used to identify the anthropometric somatotypes of 860 adult men, aged 30-50 years old, from the city of Plovdiv, located in Central Bulgaria. The men were divided into 4 age groups, in five-year intervals. In each case body height, weight and a series of skinfolds, circumferences and diameters were measured to calculate the somatotype. The SPSS package was used for the statistical analysis.
  
  
  RESULTS
  the results show a prominent endo-mesomorphic model in the study sample of male population. We found age-related increase of the values of the musclebone component, retention of the level of the fatty component and a decline in the ectomorphy. Regardless the quantitative changes of the three components, the correlation between them remains constant and the mean somatotype is preserved. A greater variety of morphotypes is found in the group of men aged 30-35. The most homogeneous group is that of the 45-50 year old men. This group is entirely dominated by the mesomorphic component (strength), and the endomorphic component (obesity) is greater than the ectomorphic one (linearity).
  
  
  CONCLUSIONS
  the study finds that in the years between 30 and 50 the men tend to build muscle rather than fat. The 50 year-old men are more mesomorphic than the men at the age of 30, but they are shorter and with less elongated body segments.
authors.affiliation: Plovdiv University "Paisii Hilendarski", Faculty of Biology, Department of Human Anatomy and Physilogy, 4000 Plovdiv, Bulgaria.. emiandre@abv.bg.
authors.forename: Emiliya
authors.initials: E
authors.lastname: Andreenko
authors.affiliation: Plovdiv University "Paisii Hilendarski", Smolyan Branch, Department of Natural-Mathematical and Economical Sciences", 4700 Smolyan, Bulgaria.. silvia_mladenova@mail.bg.
authors.forename: Silviya
authors.initials: S
authors.lastname: Mladenova
mesh_terms: D000328:Adult; D000375:Aging / Q000502:physiology; D000886:Anthropometry; D001827:Body Height; D001835:Body Weight; D002031:Bulgaria; D003430:Cross-Sectional Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012885:Skinfold Thickness; D013008:Somatotypes / Q000502:physiology*