title: Trait anxiety, submaximal physical exercise and blood androgens.
abstract: This study evaluates the relationship between trait anxiety and both androgen and gonadotrophic hormone levels at rest and during severe physical exercise. Twelve volunteers were selected among 160 untrained male collegial students and classified as anxious (N = 6) or non-anxious (N = 6) subjects according to their scores on three trait-anxiety tests (STAI, IPAT, 16 PF). Serum delta 4-androgen (testosterone and delta 4-androstenedione), delta 5-androgen (DHEA and DHEA-SO4) and gonadotrophin (LH and FSH) concentrations were measured by radioimmunoassay before, during and after 20 minutes of intensive bicycle exercise (80% of maximal heart rate). Results indicate significantly lower serum delta 4-androgens in anxious subjects before exercise. However, for each subject and irrespective of his anxiety level, all measured serum androgen concentrations increased significantly during exercise, although delta 4-androstene-dione remained lower in anxious subjects than in non-anxious ones. Serum LH concentrations (but not FSH) were significantly higher in anxious subjects throughout the observation periods. However, exercise induced in each subject a significant decrease in the serum level of both gonadotrophic hormones. The results suggest that trait anxiety level may constitute an important factor that affects both pre-exercise and exercise serum androgen concentrations in untrained subjects.
authors.affiliation: Department of Physiology, Faculty of Medicine, Laval University, Québec, Canada.
authors.forename: P
authors.initials: P
authors.lastname: Diamond
authors.forename: G R
authors.initials: GR
authors.lastname: Brisson
authors.forename: B
authors.initials: B
authors.lastname: Candas
authors.forename: F
authors.initials: F
authors.lastname: Péronnet
mesh_terms: D000328:Adult; D000728:Androgens / Q000097:blood*; D000735:Androstenedione / Q000097:blood; D001007:Anxiety / Q000097:blood*; D003687:Dehydroepiandrosterone / Q000031:analogs & derivatives / Q000097:blood; D019314:Dehydroepiandrosterone Sulfate; D015444:Exercise; D005640:Follicle Stimulating Hormone / Q000097:blood*; D006801:Humans; D007986:Luteinizing Hormone / Q000097:blood*; D008297:Male; D010555:Personality Inventory; D013739:Testosterone / Q000097:blood
chemical_list: D000728:Androgens; D013739:Testosterone; D000735:Androstenedione; D003687:Dehydroepiandrosterone; D019314:Dehydroepiandrosterone Sulfate; D007986:Luteinizing Hormone; D005640:Follicle Stimulating Hormone