Track and Field Practice and Bone Outcomes among Adolescents: A Pilot Study (ABCD-Growth Study)
10.11005/jbm.2018.25.1.35
- Author:
Yuri da Silva Ventura FAUSTINO-DA-SILVA
1
;
Ricardo Ribeiro AGOSTINETE
;
André Oliveira WERNECK
;
Santiago MAILLANE-VANEGAS
;
Kyle Robinson LYNCH
;
Isabella Neto EXUPÉRIO
;
Igor Hideki ITO
;
Romulo Araújo FERNANDES
Author Information
1. Laboratory of Investigation in Exercise (LIVE), Department of Physical Education, São Paulo State University (UNESP), São Paulo, Brazil. ricardoagostinete@gmail.com
- Publication Type:Original Article
- Keywords:
Bone and bones;
Bone density;
Child;
Exercise;
Sports
- MeSH:
Absorptiometry, Photon;
Adolescent;
Athletes;
Bone and Bones;
Bone Density;
Child;
Humans;
Lower Extremity;
Motor Activity;
Osteoporosis;
Pilot Projects;
Prevalence;
Public Health;
Sports;
Track and Field;
Upper Extremity
- From:Journal of Bone Metabolism
2018;25(1):35-42
- CountryRepublic of Korea
- Language:English
-
Abstract:
BACKGROUND: Osteoporosis is considered a public health problem with high worldwide prevalence. One approach to prevention is through the promotion of physical activity, especially exercise, during adolescence. METHODS: This study compared bone variables in different body segments in adolescents according to participation in track and field. The study included 34 adolescents (22 boys), of whom 17 were track and field athletes and 17 were control subjects. Bone mineral density (BMD, g/cm2) and bone mineral content (BMC, g) were analyzed using dual energy X-ray absorptiometry (total body stratified by body segments). Peak height velocity was used to estimate somatic maturation. RESULTS: Athletes had higher BMD (P=0.003) and BMC (P=0.011) values in the lower limbs and higher whole body BMD (P=0.025) than the control group. However, when adjusted for confounding factors, the difference was not maintained. The groups had similar lean soft tissue values (P=0.094). Training overload was positively correlated with BMD in the upper limbs (r=0.504; 95% confidence interval, 0.031-0.793). Although track and field athletes had higher BMD and BMC values in the lower limbs, these differences were not significant when adjusted for confounding factors. CONCLUSIONS: Track and field participation in adolescence appears to influence BMD and BMC in lower limbs, and fat-free mass seems to mediate this effect. Also, higher training loads were found to be positive for bone health in upper limbs.
