title: Relationship between caloric intake, body composition, and physical activity to leptin, thyroid hormones, and cortisol in adolescents.
abstract: This study examined the interrelationships between (1) the hormones leptin, TSH, free T3, and cortisol, and (2) caloric intake, body composition, and physical activity to these select hormones in adolescent boys and girls (n = 125, age = 13.4 +/- 0.9 years). The data indicate that adolescent boys and girls have some common hormonal interrelationships. However, certain hormonal relationships are not in agreement with reports for adults, suggesting that researchers should not assume that all endocrine findings in adults are automatically applicable to adolescents.
authors.affiliation: Applied Physiology Laboratory, Department of Exercise and Sport Science, University of North Carolina, Chapel Hill, NC 27599, U.S.A. thackney@med.unc.edu
authors.forename: A C
authors.initials: AC
authors.lastname: Hackney
authors.forename: R G
authors.initials: RG
authors.lastname: McMurray
authors.forename: D A
authors.initials: DA
authors.lastname: Judelson
authors.forename: J S
authors.initials: JS
authors.lastname: Harrell
mesh_terms: D000293:Adolescent / Q000502:physiology; D000367:Age Factors; D001823:Body Composition; D004032:Diet; D002149:Energy Intake; D015444:Exercise; D005260:Female; D006801:Humans; D006854:Hydrocortisone / Q000097:blood*; D020738:Leptin / Q000097:blood*; D008297:Male; D012737:Sex Factors; D013963:Thyroid Hormones / Q000097:blood*
chemical_list: D020738:Leptin; D013963:Thyroid Hormones; D006854:Hydrocortisone