Bone accrual over 18 months of participation in different loading sports during adolescence

Autor(es)

Agostinete, Ricardo Ribeiro ^[1] ; Vlachopoulos, Dimitris ^[2] ; Werneck, Andre Oliveira ^[1] ; Maillane-Vanegas, Santiago ^[1] ; Lynch, Kyle Robinson ^[1] ; Naughton, Geraldine ^[3] ; Fernandes, Romulo Araujo ^[1]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ UNESP, Lab InVestigat Exercise LIVE, Dept Phys Educ, 305 Roberto Simonsen, BR-19060900 Presidente Prudente, SP - Brazil

^[2] Univ Exeter, Childrens Hlth & Exercise Res Ctr, Sport & Hlth Sci, Exeter, Devon - England

^[3] Australian Catholic Univ, Sch Exercise Sci, Fitzroy, Vic 3065 - Australia

• Tipo de documento: Artigo Científico
• Fonte: ARCHIVES OF OSTEOPOROSIS; v. 15, n. 1 APR 25 2020.
• Citações Web of Science: 0

Resumo

This study investigated the impact and non-impact sports on bone mineral density accrual in adolescents over 18 months. The impact sports were beneficial for bone health (accrual of bone density). In contrast, swimmers had similar or lower bone mineral density compared with the control group depending on the skeletal site. Purpose To investigate the impact and non-impact sports on bone mineral density (BMD) accrual in adolescents over a period of 18 months Methods The sample was composed of 71 adolescents, avarage age of 12.7 (+/- 1.7) years old at baseline. Bone outcomes were compared according to the loading of the sports practiced (impact sports, n = 33 {[}basketball, karate, and judo], non-impact sport, n = 18 {[}swimming], and control group, n = 20). Areal bone mineral density (aBMD) was measured by dual-energy X-ray absorptiometry (DXA) and bone mineral apparent density (BMAD) estimated through equation. The results were compared between the groups using analysis of variance and analysis of covariance. Results Adjusted aBMD at lower limbs, whole body less head (WBLH), and adjusted WBLH BMAD were significantly greater in the impact sport group than the non-impact sport group at all time points. Adjusted upper limbs aBMD was significantly higher at the impact sports group compared to the non-impact sport group at 9 months and 18 months, besides compared to the control group at baseline and 18 months. Non-impact sport group presented a significant lower adjusted aBMD compared with control group at lower limbs and WBLH at 9 months, and at 9 months and 18 months in WBLH BMAD. There was a significant interaction (time x sport group) at upper limbs (p = 0.042) and WBLH aBMD (p = 0.006), and WBLH BMAD (p < 0.001). Conclusion Impact sports were more beneficial on accumulating aBMD and BMAD over a period of 18 months, while non-impact group (swimmers) had similar and lower aBMD and BMAD compared with the control group. (AU)

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