Journal article
The effects of anabolic-androgenic steroids upon resting and peak exercise left ventricular heart wall motion kinetics in male strength and power athletes
Journal of Science and Medicine in Sport, Vol.6(4), pp.387-397
2003
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Source: InCites
Abstract
<p>Previous investigations reported alterations in myocardial fibres and systolic function associated with anabolic-androgenic steroid consumption by athletes. Advances in bio-medical technology have allowed further investigation in assessing the possible effects of anabolic-androgenic steroids on gross left ventricular kinetics. Twenty-three male strength and power athletes with a past and current history of anabolicandrogenic steroid consumption (x 46 days, range 28 days to 70 days), were compared to 23 controls. Testing consisted of resting and immediate post-exercise transthoracic left ventricular wall cardiokymograms. Statistical results identified no difference over time between groups or condition. Cardiokymographic waveform analysis found 32.61% of all (n=184) waveforms to be abnormal (Type II, n=56 or Type III, n=4). There were 14 treatment subjects (60.87%) who demonstrated an abnormal waveform as compared to 9 controls (39.13%). A significant difference (p≤ 0.01) in the overall proportions of waveform types was identified where the treatment group exhibited 41.30% abnormal waveforms, compared to 23.91% by controls. Additionally, two athletes (<em>1 treatment, 1 control</em>) demonstrated abnormal left ventricular wall motions (Type III) analogous to impaired left ventricular performance. The results indicated: <ul> <li>(a)highly strength trained athletes with no history of anabolic-androgenic steroid usage exhibited an unexpected high incidence of Type II waveforms (28.26%pre/23.91%post);</li> <li>(b)a comparable group of strength trained athletes using anabolic-androgenic steroids exhibited a significantly higher percentage of abnormal waveforms as compared to controls (34.78%pre/37.21%post).</li> </ul></p>
<p>Based on these results, high intensity strength training with and without anabolicandrogenic steroid supplementation induced alterations in the left ventricular wall motion.</p>
Details
- Title
- The effects of anabolic-androgenic steroids upon resting and peak exercise left ventricular heart wall motion kinetics in male strength and power athletes
- Creators
- Michael Climstein - Australian Catholic UniversityP O'Shea - Oregon State UniversityK J Adams - University of LouisvilleM DeBeliso - Boise State University
- Publication Details
- Journal of Science and Medicine in Sport, Vol.6(4), pp.387-397
- Identifiers
- 3767; 991012820707102368
- Academic Unit
- Human Sciences; School of Health and Human Sciences; Faculty of Health
- Resource Type
- Journal article