References
- Gray A, Feldman H A, McKinlay J B, Longcope C. Age, disease, and changing sex hormone levels in middle-aged men: results of the Massachusetts Male Aging Study. J Clin Endocrinol Metab 1991; 73: 1016–1025
- Harman S M, Metter E J, Tobin D J, Pearson J, Blackman M R. Longitudinal effects of aging on serum total and free testosterone levels in healthy men. J Clin Endocrin Metab 2001; 86: 724–731
- Feldman H A, Longcope C, Derby C A, Johannes C B, Araujo A B, Coviello A D, et al. Age trends in level of serum testosterone and other hormones in middle aged men: longitudinal results from the Massachusetts Male Aging Study. J Clin Endocrin Metab 2002; 87: 589–598
- Ferrini R L, Barrett-Connor E. Sex hormones and age: a cross-sectional study of testosterone and estradiol and their bioavailable fractions in community-dwelling men. American J Epidemiol 1998; 147: 750–754
- Tenover J L. Androgen therapy in aging men. Pharmacology, biology and clinical applications of androgens, S Bhasin, H L Gabelnick, J M Spider. Wiley-Liss, New York 1996; 309–318
- Svartberg J, Midtby M, Bonaa K, Sundsfjord J, Joakimsen R M, Jorde R. The associations of age, lifestyle factors and chronic disease with testosterone in men: the Tromso Study. Europ J Enocrin 2003; 149: 145–152
- Field A E, Colditz G A, Willett W C, Longcope C, McKinlay J B. The relation of smoking, age, relative weight, and dietary intake to serum adrenal steroids, sex hormones, and sex hormone-binding globulin in middle-aged men. J Clin Enocrinol Metab 1994; 79: 1310–1316
- Zitzmann M, Nieschlag E. Testosterone levels in healthy men and the relation to behavioural and physical characteristics: facts and constructs. Europ J Endocrin 2001; 144: 183–197
- Pincus T, Summey J A, Soraci S A, Jr, Wallston K A, Hummon N P. Assessment of patient satisfaction in activities of daily living using a modified Stanford health questionnaire. Arthritis Rheumatism 1983; 26: 1346–1353
- Buysse D J, Reynolds C HF, III, Monk T H, Hoch C C, Yeager A L, Kupfer D J. Quantification of sleep quality in healthy elderly men and women using the Pittsburgh Sleep Quality Index (PSQI). Sleep 1991; 14: 331–338
- Vermeulen A, Kaufman J M, Giagulli V A. Influence of some biological indexes on sex hormone-binding globulin and androgen levels in aging or obese males. J Clin Endocrinol Metab 1996; 81: 1821–1826
- Pasqualini R, Casimirri F, Cantobelli S, Melchionda N, Morselli Labate A M, Fabbri R, Capelli M, Bortoluzzi L. Effects of obesity and body fat distribution on sex hormones and insulin in men. Metabolism 1991; 40: 101–104
- Glass A R, Swerdloff R S, Bray G A, Dahms W T, Atkinson R L. Low serum testosterone and sex hormone-binding globulin in massively obese men. J Clin Endocrin Metab 1977; 45: 268–271
- Luboshitzky R, Zabari Z, Shen-Orr Z, Herer P, Lavie P. Disruption of the nocturnal testosterone rhythm by sleep fragmentation in normal men. J Clin Endocrinol Metab 2001; 86: 1134–1139
- Francis K T. The relationship between high and low trait psychological stress, serum testosterone, and serum cortisol. Experientia 1981; 37: 1296–1297
- Hackney A C, Fahrner C L, Gulledge T P. Basal reproductive hormonal profiles are altered in endurance trained men. J Sports Med Phys Fitness 1998; 38: 138–141
- Wheeler G D, Wall S R, Belcastro A N, Cumming D C. Reduced serum testosterone and prolactin levels in male distant runners. JAMA 1984; 252: 514–516
- Kraemer R R, Kilgore J L, Kraemer G R, Castracane V D. Growth hormone IGF-1 and testosterone responses to resistive exercise. Med Science Sports Exercise 1992; 24: 1346–1352
- Craig B W, Brown R, Everhart J. Effects of progressive resistance training on growth hormone and testosterone levels in young and elderly subjects. Mechan Ageing Develop 1989; 49: 1159–1169
- Fry A C, Kraemer W J, Ramsey L T. Pituitary – adrenal – gonadal responses to high intensity resistance exercise over training. J Appl Physiol 1998; 85: 2352–2359