Maxsted, Sandra (2016) Testosterone, erectile function and sex in a healthy, ageing, male, subclinical population. Honours thesis, University of Southern Queensland. (Unpublished)
Abstract
As men are now living longer and healthier lives, research addressing ageing men’s sexual lives is warranted. Archival data was used to investigate whether total testosterone, free testosterone, and erectile function predicted sexual activities in healthy, heterosexual, ageing men reporting symptoms of late-onset hypogonadism. Self-efficacy theory was used as an underlying theory to test these relationships. Men with diagnosed erectile dysfunction were excluded from this study. The sample included 96 men aged 40 to 75 years (M = 55.72, SD = 7.1). It was hypothesised that total testosterone, free testosterone and erectile function would each uniquely predict sexual activities and that erectile function would mediate the relationships of total and free testosterone with sexual activities. Linear regressions and mediations were performed. Total testosterone did not significantly predict sexual activities, F(1, 94) = 3.73, p = .06, R2 = .04. Free testosterone did not significantly predict sexual activities, F(1, 94) = 3.83, p = .05, R2 = .04. Erectile function significantly predicted sexual activities, F(1, 94) = 62.84, p < .001, R2 = .40. Erectile function did not mediate total testosterone and sexual activities, b = 0.02, 95% BCa CI [-0.11, 0.16], or free testosterone and sexual activities, b = .09, 95% BCa CI [-0.03, 0.22]. Further research investigating the role of self-efficacy in sexual activities and the possible existence of nonlinear relationships between total testosterone and free testosterone with sexual activities among healthy, ageing men with symptoms of late-onset hypogonadism is warranted.
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| Item Type: | Thesis (Non-Research) (Honours) |
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| Item Status: | Live Archive |
| Additional Information: | Current UniSQ staff and students can request access to this thesis. Please email research.repository@unisq.edu.au with a subject line of SEAR thesis request and provide: Name of the thesis requested and Your name and UniSQ email address |
| Faculty/School / Institute/Centre: | Historic - Faculty of Health, Engineering and Sciences - School of Psychology and Counselling (1 Jan 2015 - 31 Dec 2021) |
| Supervisors: | Gavin Beccaria |
| Qualification: | Bachelor of Science (Honours) |
| Date Deposited: | 29 Aug 2025 00:06 |
| Last Modified: | 29 Aug 2025 00:07 |
| Uncontrolled Keywords: | ageing men ; late-onset hypogonadism ; testosterone ; total testosterone ; free testosterone ; erectile function ; healthy ; sexual activities ; self-efficacy theory |
| Fields of Research (2008): | 17 Psychology and Cognitive Sciences > 1799 Other Psychology and Cognitive Sciences > 179999 Psychology and Cognitive Sciences not elsewhere classified |
| Fields of Research (2020): | 52 PSYCHOLOGY > 5299 Other psychology > 529999 Other psychology not elsewhere classified |
| URI: | https://sear.unisq.edu.au/id/eprint/52543 |
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