Ricardo Ribeiro Agostinete1, Igor Hideki Ito2, Han Kemper3, Carlos Marcelo Pastre4, Mário Antônio Rodrigues-Júnior2, Rafael Luiz-de-Marco5, Rômulo Araújo Fernandes6. 1. MSc. Postgraduate Student, Postgraduate Program on Physical Therapy, Laboratory for Exercise Investigation (LIVE), Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil. 2. MSc. Postgraduate Student, Postgraduate Program on Kinesiology, Laboratory for Exercise Investigation (LIVE), Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil. 3. PhD. Emeritus Professor, Department of Occupational Health, EMGO+ Institute for Health and Care Research, VU University Medical Center, Amsterdam, Netherlands. 4. PhD. Associate Professor, Department of Physical Therapy, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil. 5. MSc. Postgraduate Student, Laboratory for Exercise Investigation (LIVE), Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil. 6. PhD. Assistant Professor, Laboratory for Exercise Investigation (LIVE), Department of Physical Education, Universidade Estadual Paulista (UNESP), Presidente Prudente (SP), Brazil.
Abstract
CONTEXT AND OBJECTIVE: : Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: : Cross-sectional study, São Paulo State University (UNESP). METHODS: : The study was composed of 93 adolescents (12 to 16.5 years old), divided into three groups: no-sport group (n = 42), soccer/basketball group (n = 26) and swimming group (n = 25). Bone mineral density and content were measured using dual-energy x-ray absorptiometry and somatic maturation was estimated through using peak height velocity. Data on training load were provided by the coaches. RESULTS: : Adolescents whose PHV occurred at an older age presented higher bone mineral density in their upper limbs (P = 0.018). After adjustments for confounders, such as somatic maturation, the swimmers presented lower values for bone mineral density in their lower limbs, spine and whole body. Only the bone mineral density in the upper limbs was similar between the groups. There was a negative relationship between whole-body bone mineral content and the weekly training hours (β: -1563.967; 95% confidence interval, CI: -2916.484 to -211.450). CONCLUSION: : The differences in bone variables attributed to sport practice occurred independently of maturation, while high training load in situations of hypogravity seemed to be related to lower bone mass in swimmers.
CONTEXT AND OBJECTIVE: : Peak height velocity (PHV) is an important maturational event during adolescence that affects skeleton size. The objective here was to compare bone variables in adolescents who practiced different types of sports, and to identify whether differences in bone variables attributed to sports practice were dependent on somatic maturation status. DESIGN AND SETTING: : Cross-sectional study, São Paulo State University (UNESP). METHODS: : The study was composed of 93 adolescents (12 to 16.5 years old), divided into three groups: no-sport group (n = 42), soccer/basketball group (n = 26) and swimming group (n = 25). Bone mineral density and content were measured using dual-energy x-ray absorptiometry and somatic maturation was estimated through using peak height velocity. Data on training load were provided by the coaches. RESULTS: : Adolescents whose PHV occurred at an older age presented higher bone mineral density in their upper limbs (P = 0.018). After adjustments for confounders, such as somatic maturation, the swimmers presented lower values for bone mineral density in their lower limbs, spine and whole body. Only the bone mineral density in the upper limbs was similar between the groups. There was a negative relationship between whole-body bone mineral content and the weekly training hours (β: -1563.967; 95% confidence interval, CI: -2916.484 to -211.450). CONCLUSION: : The differences in bone variables attributed to sport practice occurred independently of maturation, while high training load in situations of hypogravity seemed to be related to lower bone mass in swimmers.
Authors: Francesco Campa; Analiza Monica Silva; Vincenzo Iannuzzi; Gabriele Mascherini; Luca Benedetti; Stefania Toselli Journal: Int J Environ Res Public Health Date: 2019-11-26 Impact factor: 3.390
Authors: Stefania Toselli; Elisabetta Marini; Pasqualino Maietta Latessa; Luca Benedetti; Francesco Campa Journal: Int J Environ Res Public Health Date: 2020-01-22 Impact factor: 3.390
Authors: Ricardo R Agostinete; André O Werneck; Santiago Maillane-Vanegas; Luis Gracia-Marco; Esther Ubago-Guisado; Annie M Constable; Romulo A Fernandes; Dimitris Vlachopoulos Journal: Int J Environ Res Public Health Date: 2021-03-15 Impact factor: 3.390