COMPARISON OF FRAME INDEX OF TWO COHORTS OF SCHOOL CHILDREN FROM PUERTO MADRYN (CHUBUT, ARGENTINA) WITH THE EUROPEAN REFERENCE

NAVAZO B; MUMM R; DAHINTEN S; OYHENART E; SCHEFFLER C

Krobielowice

Conferencia; International Conference 27th Aschauer Soirée Growth, Nutrition and Economy; 2019

Auxological Society, Deutsche Gesellschaft für Auxologie & Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences

Navazo et al. compared Frame Indices (FI) of two cross-sectional cohorts of school children from Argentina and with the European reference (ER) (Mumm et al., 2018). The Cohort 1=C1 was studied in 2001-2006 and the Cohort 2=C2 in 2014-2016 and included boys and girls, aged 6 to 14 years,from Puerto Madryn (Chubut, Argentina). FI has been used as a measurement of external skeletal robustness. Centile (P) from C1 and C2 were calculated combining the LMS-method and its extension and the values were compared between them and with ER. FI showed a negative secular trend between C1 (2001-2006) and C2 (2014-2016) in the Puerto Madryn school children. However, in boys FI of the ER were higher than C1-in some ages- and in all cases also of C2. In girls, FI values of the ER were lower than C1 and higher than C2. Figure 1 illustrates percent differences of the mean (PDM%) for height, elbow breadth and Frame Index (P3, P50 and P97). The authors explained that the negative secular trend in external skeletal robustness of the Puerto Madryn school children could be caused by low physical activity of the more recent cohort of children. They highlighted the importance of daily physical activity both at schools and gyms and conditions that stimulate open-air recreational activities (in squares, parks, etc.), to maximize bone mass and prevent future osteoporosis and bone fractures.