Results 61 to 70 of about 11,661 (268)

The Effects of Trenbolone Supplementation on The Extremity Bones in Running Rats

Türk Spor ve Egzersiz Dergisi, 2019
Anabolic steroids are testosterone derivatives through which anabolic effects are maintained and androgenic effects are minimized. The use of ergogenic agents is increasing among athletes for doping in order to increase physical performance and change ...
Ali Sarı, Sefa Lök
doaj   +1 more source

Physiological Basis of Sex Differences in Human Performance and Exercise‐Associated Pathology

Clinical Endocrinology, EarlyView.
ABSTRACT The presence of sex differences in human physical performance is well‐established and shaped by distinct endocrine, anatomical and physiological mechanisms. Despite sustained advances, our understanding of how inherent biological factors drive variations in exercise capacity and related pathologies is still developing.
David A. Holdsworth, Thomas J. O'Leary, Craig L. Doig, Natalie Taylor, Jasminder Dosanjh, David R. Woods, Michael J. Stacey, Robert M. Gifford   +7 more
wiley   +1 more source

Brain connectivity aberrations in anabolic-androgenic steroid users

NeuroImage: Clinical, 2017
Sustained anabolic-androgenic steroid (AAS) use has adverse behavioral consequences, including aggression, violence and impulsivity. Candidate mechanisms include disruptions of brain networks with high concentrations of androgen receptors and critically ...
Lars T. Westlye, Tobias Kaufmann, Dag Alnæs, Ingunn R. Hullstein, Astrid Bjørnebekk   +4 more
doaj   +1 more source

National Athletic Trainers\u27 Association Position Statement: Anabolic-Androgenic Steroids [PDF]

, 2012
Objective: This manuscript summarizes the best available scholarly evidence related to anabolic-androgenic steroids (AAS) as a reference for health care professionals, including athletic trainers, educators, and interested others. Background: Health care
Elliot, Diane L., Goldberg, Linn, Kanayama, Gen, Kersey, Robert D., Leone, James E., Pavlovich, Mike, Pope, Harrison G.   +6 more
core   +1 more source

Endocrine and androgenic response to altitude training in professional cyclists

The Journal of Physiology, EarlyView.
Abstract figure legend Steroidal and endocrine variables are altered during altitude training. Abstract This study investigated endocrine and steroidal blood markers in 31 male elite cyclists monitored over 7 weeks, including a 3 week altitude training camp either at 2050 m (n = 19) or 3000 m (n = 12).
Raphael Faiss, Bastien Krumm, Claes Cubel, Magnus Bak Klaris, Lasse Vestli Baekken, Yvette Dehnes, Jenna Goodrum, Geoff Miller, James Spragg, Martin Faulhaber, Francesco Botrè, Carsten Lundby   +11 more
wiley   +1 more source

Survey of endocrinologists managing recovery from anabolic androgenic steroid induced hypogonadism

Reproduction and Fertility, 2023
Anabolic steroids (also known as ‘steroids’) are banned drugs like testosterone, which make muscles bigger in men. These drugs are dangerous because they stop the testes from making natural testosterone and can cause heart attacks.
Bonnie Grant, Anjali Pradeep, Suks Minhas, Waljit S Dhillo, Richard Quinton, Channa N Jayasena   +5 more
doaj   +1 more source

Metabolism of anabolic androgenic steroids [PDF]

Clinical Chemistry, 1996
Abstract Anabolic androgenic steroids (AAS) are misused to a high extent in sports by athletes to improve their physical performance. Sports federations consider the use of these drugs in sports as doping. The misuse of AAS is controlled by detection of the parent AAS (when excreted into urine) and (or) their metabolites in urine of ...
openaire   +2 more sources

Statistical Discrimination of Urinary Steroid Biomarkers in the Athlete Biological Passport: A Novel Approach to an Abnormal Steroid Profile Score (ASPS)

Drug Testing and Analysis, Volume 18, Issue 5, Page 608-618, May 2026.
The study developed a single Abnormal Steroid Profile Score (ASPS) to improve interpretation of the Athlete Biological Passport steroid module. Using Bayesian modelling and logistic regression, biomarker patterns from laboratory and doping control data successfully discriminated between doped and clean individuals, with improved classification ...
James G. Hopker, Jim E. Griffin, Matthew N. Fedoruk, Laura A. Lewis   +3 more
wiley   +1 more source

Nandrolone (17-Nortestosterone) And Glucose Metabolism: From Ugly Duckling To Handsome Swan

Journal of the Pakistan Medical Association
Glucosarcopenia, or sarcopenia coexisting with diabetes,is a common condition. Caused by various factors,including poor glucose control, as well as some glucoseloweringtherapies, sarcopenia negatively impacts qualityof life and long-term health ...
Sanjay Kalra, Atul Dhingra, Nitin Kapoor
doaj   +1 more source

Non-targeted LC-MS based metabolomics analysis of the urinary steroidal profile [PDF]

, 2017
The urinary steroidal fraction has been extensively explored as non-invasive alternative to monitor pathological conditions as well as to unveil the illicit intake of pseudo-endogenous anabolic steroids in sport.
Botrè, Francesco, de la Torre, Xavier, Palermo, Amelia, Zamboni, Nicola   +3 more
core   +1 more source