Observatorio de I+D+i UPM

Memorias de investigación
Research Publications in journals:
Increased circulating adiponectin levels and decreased leptin/soluble leptin receptor ratio throughout puberty in female ballet dancers:association with body composition and delay in puberty
Year:2010
Research Areas
  • Physical education and sport
Information
Abstract
Introduction: Ballet dancers (BDs) have a negative energy balance related to physical training that results in alterations in body composition, sexual development, and adipokine secretion. Our aims were to study anthropometric parameters, body composition, and their relationship with adipokines throughout pubertal development. Subjects and methods: We carried out a prospective follow-up study of 22 female Caucasian BDs (Tanner II stage) followed throughout puberty. Nutritional status was determined by measurement of height, weight, and body mass index (BMI). We calculated growth velocity, bone maturity, and body composition at Tanner stages II, III, and V by dual energy X-ray absorptiometry. Circulating leptin, adiponectin, and soluble leptin receptor (sObR) levels were determined. Results: BDs presented a delay in skeletal maturation during puberty, without affectation of ¿nal height. Energy intake was de¿cient according to their physical exercise, and they had a delay of 1 year in the mean age of menarche. Leptin levels were decreased, whereas sObR and adiponectin levels were increased throughout puberty. The percentage of trunk fat, total fat mass, and fat of the extremities was decreased throughout the study period (P!0.01). Lean mass was increased in the lower extremities, and bone mineral density was normal. Conclusion: A negative energy balance together with maintained physical exercise induced modi¿cations in body composition in BDs. Changes in leptin and adiponectin levels appear to be more related to total fat content than to BMI. Furthermore, the onset and delayed progress of puberty may be related with an inadequate energy balance due to increased exercise.
International
Si
JCR
Si
Title
EUROPEAN JOURNAL OF ENDOCRINOLOGY
ISBN
0804-4643
Impact factor JCR
3,539
Impact info
Volume
Journal number
From page
905
To page
911
Month
ENERO
Ranking
Participants
  • Autor: M. Guadalupe Garrido Pastor (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Deporte Rendimiento
  • Departamento: Salud y Rendimiento Humano
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