title: Total and regional bone mineral content in Spanish professional ballet dancers.
abstract: Total body bone mineral content (TBBMC) and regional bone mineral content (BMC) was measured in the members of the Spanish National Dance Company (15 female, mean age 25.1 +/- 3.8 years, and 15 male, mean age 28.2 +/- 2.1 years) and in 30 controls (15 women, mean age 26.1 +/- 1.8 years, and 15 men, mean age 28.0 +/- 1.5 years). Ca, P, and Mg intake were greater in the group of ballet dancers than in controls analysis of variance (ANOVA, all P < 0.0001). BMC was similar in the group of ballet dancers and controls except in the trunk without pelvis (P < 0.001). Both male and female dancers weighed less than controls (P < 0.05). The BMC of the male dancers was less than that of male controls only in the trunk (P < 0.05) and in the trunk without pelvis (P < 0.005); BMC was lower in female dancers than in female controls only in the arms and in the trunk without pelvis (P < 0.05 and P < 0.005, respectively). TBBMC, adjusted for weight and age, was correlated partially with caloric intake (kcal/day) and with Ca, P, Mg, and Zn intake (g/day), and yielded significant differences between the dancers and controls only in P intake (P < 0.01), and between male dancers and male controls only in caloric intake and in Ca, P, and Zn intake (all P < 0.01, except for Ca, P < 0.05). The lower trunk bone mass observed in the female dancers is a risk factor for eventual osteoporosis.
authors.affiliation: Department of Medicine, Alcalá de Henares University, Madrid, Spain.
authors.forename: A
authors.initials: A
authors.lastname: Cuesta
authors.forename: M
authors.initials: M
authors.lastname: Revilla
authors.forename: L F
authors.initials: LF
authors.lastname: Villa
authors.forename: E R
authors.initials: ER
authors.lastname: Hernández
authors.forename: H
authors.initials: H
authors.lastname: Rico
mesh_terms: D015502:Absorptiometry, Photon; D000328:Adult; D015519:Bone Density / Q000502:physiology*; D001842:Bone and Bones / Q000737:chemistry*; D002136:Calcium, Dietary; D003615:Dancing; D004032:Diet; D005260:Female; D006801:Humans; D008274:Magnesium; D008297:Male; D016226:Phosphorus, Dietary; D015032:Zinc
chemical_list: D002136:Calcium, Dietary; D016226:Phosphorus, Dietary; D008274:Magnesium; D015032:Zinc