Abstract
ObjectiveKnowledge of the biological parameters of pubertal growth spurt allows verification of secular changes and exploration of the timing of puberty. The aim of the study was to estimate final height, age at peak height velocity (APHV), and peak height velocity PHV (cm/y) in children and adolescents living at moderate altitude in Colombia.MethodsA cross-sectional study was designed in 2.295 schoolchildren from Bogotá (Colombia) with an age range from 5.0 to 18.9 years. Height (cm) was assessed. Preece–Baines model 1 (1PB) was used to make inferences about mathematical and biological parameters.ResultsThe five mathematical parameters estimated in general have reflected quality in the fit to the model, reflecting a small residual error. Final height was reached in boys at 170.8 ± 0.4 cm and in girls at 157.9 ± 0.2 cm. APHV was estimated at 12.71 ± 0.1 years in boys and 10.4 ± 0.2 years in girls. Girls reached APHV 2.2 years earlier than boys. In relation to PHV (cm/y), boys reached higher growth speed in height (7.4 ± 0.4 cm/y), and in girls it was (7.0 ± 0.2 cm/y).ConclusionIt was determined that final height was reached at 170.8 ± 0.4 cm in boys and 157.9 ± 0.2 cm in girls, and APHV (years) and PHV (cm/ye) were reached relatively early and with average peak velocity similar to Asian and Western populations. A large-scale longitudinal study is needed to confirm these findings.
Highlights
Human growth is traditionally conceived as a goal-seeking process regulated by genes, nutrition, health, and the state of an individual’s social and economic environment [1, 2]
Conducting a longitudinal study involves long periods of time, often years or decades [6], which makes the process of collecting data continuously difficult in general, in recent years, the estimation of peak growth velocity and pubertal growth spurt parameters in children and adolescents from various parts of the world [4, 7, 8] have been determined by mathematical models, Preece–Baines [9] model 1 (1PB)
The results of the study evidence that schoolchildren living at moderate altitude in Bogotá (Colombia) reflect a final height in boys of 170.84 ± 0.43 cm and in girls of 157.93 ± 0.21 cm
Summary
Human growth is traditionally conceived as a goal-seeking process regulated by genes, nutrition, health, and the state of an individual’s social and economic environment [1, 2]. It is characterized by extraordinary plasticity and population heterogeneity [3]. To determine growth velocity, a longitudinal study should be used before a cross-sectional study [5]. Conducting a longitudinal study involves long periods of time, often years or decades [6], which makes the process of collecting data continuously difficult in general, in recent years, the estimation of peak growth velocity and pubertal growth spurt parameters in children and adolescents from various parts of the world [4, 7, 8] have been determined by mathematical models, Preece–Baines [9] model 1 (1PB)
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