Association between training volume, body composition and sleep quality in the prediction of the bone mineral density in adolescents: structural equations models (ABCD - Growth Study)

• Grant number: 18/21935-1
• Support type: Scholarships in Brazil - Scientific Initiation
• Effective date (Start): February 01, 2019
• Effective date (End): December 31, 2021
• Field of knowledge: Health Sciences - Physical Education
• Principal Investigator: Rômulo Araújo Fernandes
• Grantee: Pedro Henrique Narciso Picchi
• Home Institution: Faculdade de Ciências e Tecnologia (FCT). Universidade Estadual Paulista (UNESP). Campus de Presidente Prudente. Presidente Prudente , SP, Brazil

Abstract

Objective: Analyze the association between training volume (TV) and bone mineral density (BMD) with emphasis on the mediation by variables of body composition and sleep quality. Methods: Will be recruited adolescents, from 11 to 18 years old, in schools and sportive associations from Presidente Prudente. Will be used the following inclusion criteria: (I) practice of only one sport modality in the last 12 months; (II) at least 12 months of previous involvement in the current sport modality; (III) the legal responsible for the adolescent must sign the consent and assent term. Independent variable: training volume. Mediator variables: sleep quality, body lean soft tissue and body fatness. Dependent variable: bone mineral density. Confusion factor: chronological age, biological maturation (estimated by the peak height velocity), weight and height. Kurtosis and Skewness will be used for normality purposes. Data will be described using mean and standard deviation value of the groups. Structural equation modeling will be used, adopting the maximum likelihood method as well as bootstrapping resampling method to test indirect effects. All analyzes will be done on the software SPSS version 22.0, significance level adopted p<0.05. Expected results: It expects that sleep quality, body fatness and lean soft tissue mediate the association between training volume and bone mineral density.

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

AGOSTINETE, RICARDO RIBEIRO; FERNANDES, ROMULO ARAUJO; NARCISO, PEDRO HENRIQUE; MAILLANE-VANEGAS, SANTIAGO; WERNECK, ANDRE OLIVEIRA; VLACHOPOULOS, DIMITRIS. Categorizing 10 Sports According to Bone and Soft Tissue Profiles in Adolescents. MEDICINE AND SCIENCE IN SPORTS AND EXERCISE, v. 52, n. 12, p. 2673-2681, DEC 2020. Web of Science Citations: 0.

NARCISO, PEDRO HENRIQUE; WERNECK, ANDRE OLIVEIRA; LUIZ-DE-MARCO, RAFAEL; VENTURA FAUSTINO-DA-SILVA, YURI DA SILVA; MAILLANE-VANEGAS, SANTIAGO; AGOSTINETE, RICARDO RIBEIRO; FERNANDES, ROMULO ARAUJO. Influential role of lean soft tissue in the association between training volume and bone mineral density among male adolescent practitioners of impact-loading sports: ABCD Growth study. BMC PEDIATRICS, v. 20, n. 1 OCT 28 2020. Web of Science Citations: 0.