Salustio Carrasco López1,2, Rossana Gómez-Campos3, Jorge Méndez Cornejo2, Lautaro Morales2, Camilo Urra-Albornoz4, Marco Cossio-Bolañosb2,5. 1. Departamento de Educación Física, Facultad de Educación, Universidad de Concepción. 2. Departamento de Ciencias de la Actividad Física, Universidad Católica del Maule, Talca. 3. Universidad Autónoma de Chile, Talca. 4. Escuela de Kinesiología, Facultad de Salud, Universidad Santo Tomás, Talca. Chile. 5. Instituto de Deporte Universitario (IDUNSA), Universidad Nacional San Agustín de Arequipa, Perú. mcossio1972@ hotmail.com.
Abstract
OBJECTIVES: a) To compare physical growth to the 2012 American standard from the Centers for Disease Control and Prevention (CDC); b) to analyze physical growth by chronological and biological age; c) to propose physical growth charts based on chronological and biological age. Methodology. A descriptive (cross-sectional) study was conducted in young Chilean football players based on weight, standing height, and sitting height. These were compared to the CDC- 2012 standard. Percentiles were developed using the LMS method. RESULTS: A total of 642 young Chilean football players aged 13.0-18.9 years were studied. Their body weight was lower than that of the CDC standard from 13.0 to 18.9 years old (p < 0.05), whereas their height showed no significant differences in the initial age categories (13.0- 13.9 and 14.0-14.9 years). Differences started to be observed as of 15.0 years old up to 18.9 years old (p < 0.05). In relation to chronological age, weight explained 31%; standing height, 16%; and sitting height, 0.09%, whereas in relation to biological age, weight explained 51%; standing height, 40%; and sitting height, 54%. Percentiles were developed based on chronological and biological age. CONCLUSION: These youth showed different physical growth patterns compared to the CDC-2012 standard. Their assessment reflects better explanatory percentages for biological age than for chronological age. The proposed percentiles may be an alternative to keep track of the physical growth patterns of young football players in sports settings in the short, medium, and long term. Sociedad Argentina de Pediatría.
OBJECTIVES: a) To compare physical growth to the 2012 American standard from the Centers for Disease Control and Prevention (CDC); b) to analyze physical growth by chronological and biological age; c) to propose physical growth charts based on chronological and biological age. Methodology. A descriptive (cross-sectional) study was conducted in young Chilean football players based on weight, standing height, and sitting height. These were compared to the CDC- 2012 standard. Percentiles were developed using the LMS method. RESULTS: A total of 642 young Chilean football players aged 13.0-18.9 years were studied. Their body weight was lower than that of the CDC standard from 13.0 to 18.9 years old (p < 0.05), whereas their height showed no significant differences in the initial age categories (13.0- 13.9 and 14.0-14.9 years). Differences started to be observed as of 15.0 years old up to 18.9 years old (p < 0.05). In relation to chronological age, weight explained 31%; standing height, 16%; and sitting height, 0.09%, whereas in relation to biological age, weight explained 51%; standing height, 40%; and sitting height, 54%. Percentiles were developed based on chronological and biological age. CONCLUSION: These youth showed different physical growth patterns compared to the CDC-2012 standard. Their assessment reflects better explanatory percentages for biological age than for chronological age. The proposed percentiles may be an alternative to keep track of the physical growth patterns of young football players in sports settings in the short, medium, and long term. Sociedad Argentina de Pediatría.
Authors: Pablo Luna-Villouta; Marcelo Paredes-Arias; Carol Flores-Rivera; Claudio Hernández-Mosqueira; Ricardo Souza de Carvalho; César Faúndez-Casanova; Jaime Vásquez-Gómez; Rodrigo Vargas-Vitoria Journal: Int J Environ Res Public Health Date: 2021-10-17 Impact factor: 3.390