A Longitudinal Study of Bone Mineral Accrual during Growth in Competitive Premenarcheal Rhythmic Gymnasts
| Autor: | Jaak Jürimäe, Liina Remmel, Eva Mengel, Vallo Tillmann, Anna-Liisa Tamm |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Leptin
Competitive Behavior medicine.medical_specialty Longitudinal study Gymnastics premenarcheal girls Adipokine 030209 endocrinology & metabolism Physical Therapy Sports Therapy and Rehabilitation Plyometric Exercise medicine.disease_cause 03 medical and health sciences Child Development 0302 clinical medicine Jumping Rhythm Bone Density Internal medicine medicine Body Fat Distribution Humans Orthopedics and Sports Medicine Longitudinal Studies Child adipokines Femoral neck Menarche Bone mineral Lumbar Vertebrae Femur Neck business.industry fat mass 030229 sport sciences longitudinal development Endocrinology medicine.anatomical_structure rhythmic gymnastics GV557-1198.995 Sports medicine Bone mineral content Female business RC1200-1245 bone mineral content Research Article Sports |
| Zdroj: | Journal of Sports Science and Medicine, Vol 20, Iss 3, Pp 466-473 (2021) J Sports Sci Med |
| ISSN: | 1303-2968 |
| Popis: | The purpose of this investigation was to study whether prolonged competitive rhythmic gymnastics training influenced bone mineral accrual in premenarcheal girls. Eighty-nine girls (45 rhythmic gymnasts [RG] and 44 untrained controls [UC]) between 7 and 9 years of age were recruited and measured annually for four years (not all participants were measured at every occasion). Dual energy x-ray absorptiometry was used to assess the development of whole body (WB), femoral neck (FN) and lumbar spine (LS) bone mineral content (BMC). In addition, body composition, blood adipokine and jumping performance characteristics were obtained. For longitudinal analyses, hierarchical mixed-effects models were constructed to predict differences in the development of WB, FN and LS BMC between RG and UC groups, while accounting for differences in body composition, blood adipokine and jumping performance values. It appeared that from 8 years of age, RG had lower (p < 0.05) fat mass and leptin values, and higher (p < 0.05) jumping performance measures in comparison with UC girls. Hierarchical mixed-effects models demonstrated that RG had 71.9 ± 12.0, 0.23 ± 0.11 and 1.39 ± 0.42 g more (p < 0.05) WB, FN and LS BMC, respectively, in comparison with UC girls. In addition, WB, FN and LS BMC increased more (p < 0.05) between 7 to 12 years of age in RG girls in comparison with UC. In conclusion, these findings suggest that the prolonged exposure to competitive rhythmic gymnastics trainings in premenarcheal girls is associated with greater bone mineral accrual despite lower body fat mass and leptin values. |
| Databáze: | OpenAIRE |
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