Working Out Legs Raises Testosterone

The efficacy of these substances for this purpose is unsubstantiated, however. Full Text of Background. The men in the exercise groups performed standardized weight-lifting exercises three times weekly. Before and after the treatment period, fat-free mass was determined by underwater weighing, muscle size was measured by magnetic resonance imaging, and the strength of the arms and legs was assessed by bench-press and squatting exercises, respectively.

Full Text of Methods. Neither mood nor behavior was altered in any group. Full Text of Results. Supraphysiologic doses of testosterone, especially when combined with strength training, increase fat-free mass and muscle size and strength in normal men. Full Text of Discussion.

Headaches when working out. What could be wrong – Exercise & Fitness – MedHelp

We sought to determine whether supraphysiologic doses of testosterone, administered alone or in conjunction with a standardized program of strength-training exercise, increase fat-free mass and muscle size and strength in normal men.

To overcome the pitfalls of previous studies, the intake of energy and protein and the exercise stimulus were standardized. Because some previous studies had demonstrated significant increases in muscle strength and hypertrophy in experienced athletes but not in sedentary subjects, we studied men who had weight-lifting experience.

This study was approved by the institutional review boards of the Harbor—UCLA Research and Education Institute and the Charles R. Drew University of Medicine and Science. All the study subjects gave informed written consent.

How Can One Increase Their Testosterone Levels?

working out legs raises testosterone-1908 They were recruited through advertisements in local newspapers and community colleges.

Men who had ever taken anabolic agents or recreational drugs or had had a psychiatric or behavioral disorder were excluded from the study. During the four-week control period, the men were asked not to lift any weights or engage in strenuous aerobic exercise.

Compliance with the diet was verified every four weeks by three-day records of food consumption. The dietary intake was adjusted every two weeks on the basis of changes in body weight. This dose is six times higher than the dose usually given as replacement therapy in men with hypogonadism and is therefore supraphysiologic. All the men trained at equivalent intensities in relation to their strength scores before the training. The number of sets was also increased from four to five, but the number of repetitions per set remained constant.

The men were advised not to undertake any resistance exercise or moderate-to-heavy endurance exercise in addition to the prescribed regimen. Sexual function and semen characteristics were not assessed. Muscle size was measured by MRI of the arms and legs at the humeral or femoral mid-diaphyseal level, the junction of the upper third and middle third of the bone, and the junction of the middle third and lower third.

The Effects of Supraphysiologic Doses of Testosterone on Muscle Size and Strength in Normal Men — NEJM

The cross-sectional areas of the arms and legs, the subcutaneous tissue, the muscle compartment, and the quadriceps and triceps muscles were computed, and the areas at the three levels were averaged.

Fat-free mass was estimated on the basis of measurements of body density obtained by underwater weighing. During weighing, the men were asked to exhale to the residual volume, as measured by helium dilution.

The effort-dependent performance of muscle was assessed on the basis of the maximal weight lifted for one repetition during the bench-press and squatting exercises.

For each man a live-in partner, spouse, or parent answered the same questions about the man’s mood and behavior. The Shapiro and Wilk test was used to test whether the outcome variables had a normal distribution. These values were averaged among the subjects in each group to obtain the group means. Analysis of variance was used to determine whether there were base-line differences among the four groups. Two-tailed, paired t-tests were used to test for changes in each outcome variable in each group.

This test adjusts for multiple comparisons, but it does not yield exact P values for pairwise comparisons between groups. Acne developed in three men receiving testosterone and one receiving placebo, and two men receiving testosterone reported breast tenderness, but no other side effects were noted. There was no change in the serum concentration of prostate-specific antigen in any group. The base-line serum concentrations of total and free testosterone in the four groups were similar.

The base-line serum concentrations of luteinizing hormone, follicle-stimulating hormone, and sex hormone—binding globulin were similar in the four groups, and the concentrations decreased significantly in the two testosterone groups. The P values shown are for the comparison between the change indicated and a change of zero.

The percentage of body fat did not change significantly in any group data not shown. No differences were found between the exercise groups and the no-exercise groups or between the placebo groups and the testosterone groups in any of the five subcategories of anger assessed by the Multidimensional Anger Inventory. No significant changes in mood or behavior were reported by the men on the Mood Inventory or by their live-in partners, spouses, or parents on the Observer Mood Inventory.

Our results show that supraphysiologic doses of testosterone, especially when combined with strength training, increase fat-free mass, muscle size, and strength in normal men when potentially confounding variables, such as nutritional intake and exercise stimulus, are standardized.

The combination of strength training and testosterone produced greater increases in muscle size and strength than were achieved with either intervention alone. The exercise was standardized in all the men, and therefore the effects of testosterone on muscle size and strength cannot be attributed to more intense training in the groups receiving the treatment. Careful selection of experienced weight lifters, the exclusion of competitive athletes, and close follow-up ensured a high degree of compliance with the regimens of exercise, treatment, and diet, which was verified by three-day food records data not shown and the values obtained for serum testosterone, luteinizing hormone, and follicle-stimulating hormone.

Except for one man who missed one injection, all the men received all their scheduled injections. It has been argued that studies in which large doses of androgens are used cannot be truly blinded because of the occurrence of acne or other side effects.

In this study, neither the investigators nor the personnel performing the measurements knew the study-group assignments. Thus, it cannot be stated with certainty that the men were completely unaware of the nature of their treatments. Undoubtedly, some athletes and bodybuilders take even higher doses than those we gave. We do not know whether still higher doses of testosterone or the simultaneous administration of several steroids would have more pronounced effects.

The absence of systemic toxicity during testosterone treatment was consistent with the results of studies of the contraceptive efficacy of that hormone. Although the men receiving testosterone did have increases in muscle size, some of the gains in strength may have resulted from the behavioral effects of testosterone. The dose dependency of the action of testosterone on fat-free mass and protein synthesis has not been well studied.

Others have suggested that there may be two dose—response curves: one in the hypogonadal range, with maximal responses corresponding to the serum testosterone concentrations at the lower end of the range in normal men, and the second in the supraphysiologic range, presumably representing a separate mechanism of action — that is, a pathway of independent androgen receptors. Our results, however, do not preclude the possibility that still higher doses of multiple steroids may provoke angry behavior in men with preexisting psychiatric or behavioral problems.

Our results in no way justify the use of anabolic—androgenic steroids in sports, because, with extended use, such drugs have potentially serious adverse effects on the cardiovascular system, prostate, lipid metabolism, and insulin sensitivity. Moreover, the use of any performance-enhancing agent in sports raises serious ethical issues. Our findings do, however, raise the possibility that the short-term administration of androgens may have beneficial effects in immobilized patients, during space travel, and in patients with cancer-related cachexia, disease caused by the human immunodeficiency virus, or other chronic wasting disorders.

We are indebted to Dr. Indrani Sinha-Hikim for the serum hormone assays, to Dr. Paul Fu for the plasma lipid measurements, to the staff of the General Clinical Research Center for conducting the studies, and to BioTechnology General Corporation, Iselin, New Jersey, for providing testosterone enanthate. From the Department of Medicine, Charles R. Drew University of Medicine and Science, Los Angeles S. Address reprint requests to Dr.

Bhasin at the Division of Endocrinology, Metabolism and Molecular Medicine, Charles R. Androgen abuse by athletes.

Anabolic steroids in the athlete. Anabolic steroids: a review of the literature. Steroids in sports: after four decades, time to return these genies to bottle?

Effects of anabolic-androgenic steroids on muscular strength. Anabolic steroids: doctors denounce them, but athletes aren’t listening.

Estimated prevalence of anabolic steroid use among male high school seniors. Androgen effects on body composition and muscle performance. In: Bhasin S, Gabelnick HL, Spieler JM, Swerdloff RS, Wang C, eds. Pharmacology, biology, and clinical applications of androgens: current status and future prospects.

American College of Sports Medicine. Position stand on the use of anabolic-androgenic steroids in sports. Biological actions of androgens. Comparison of protein anabolic property of various androgens in the castrated rat. A comparative study of the metabolic effects of testosterone propionate in normal men and women and in eunuchoidism. Replacement doses of testosterone increase lean body mass, muscle size and strength in hypogonadal men.

Presented at the American Society of Andrology Meeting, Springfield, Ill. Katznelson L, Finkelstein J, Baressi C, Klibanski A. Increase in trabecular bone density and altered body composition in androgen replaced hypogonadal men.

Griggs RCKingston WJozefowicz RFHerr BEForbes GHalliday D. Effect of testosterone on muscle mass and muscle protein synthesis. The effect of an anabolic steroid on strength and lean body mass. Anabolic steroid: effects on strength, body weight, oxygen uptake, and spermatogenesis upon mature males. The effect of anabolic steroid upon skeletal muscle contractile force. Effects of methandienone on the performance and body composition of men undergoing athletic training.

Anabolic steroid: effectiveness as an ergogenic aid to experienced weight trainers. The effect of anabolic steroids on physical fitness. The use of anabolic steroids by athletes to increase body weight and strength. Anabolic steroids in athletics: crossover double-blind trial on weightlifters. Anabolic steroid: effects on strength development. Effects of methandostenolone Dianabol on strength development and aerobic capacity. Golding LAFreydinger JEFishel SS.

Weight, size, and strength – unchanged with steroids. Effects of an androgenic-anabolic steroid on strength development and plasma testosterone levels in normal males. The effects of an anabolic steroid on the strength, body composition, and endurance of college males when accompanied by a weight training program. Anabolic steroid effects on body composition in normal young men.

Influence of methyl testosterone on muscular work and creatine metabolism in normal young men. Human strength and endurance responses to anabolic steroid and training.

Effects of androgenic-anabolic steroids on neuromuscular power and body composition. Biochemical and physical effects of an anabolic steroid in competitive swimmers and weightlifters. Is high dosage testosterone an effective male contraceptive agent?

In: Stone MH, O’Bryant HS. Weight training: a scientific approach. Tom LBhasin SSalameh Wet al. Male contraception: induction of azoospermia in normal men with combined gonadotropin-releasing hormone antagonist and testosterone enanthate.

The Multidimensional Anger Inventory. The effect of anabolic steroids on lean body mass: the dose response curve. Effect of modulating serum testosterone in the normal male range on protein dynamics, carbohydrate and lipid metabolism. Progress in Neuro-Psychopharmacology and Biological Psychiatry. CrossRef Hussain Alquraini, Richard J. Molecular and Cellular Endocrinology. Greenhaff, Kenneth Smith, Philip J. CrossRef Julius Fink, Naoki Kikuchi, Koichi Nakazato.

Clinical Physiology and Functional Imaging. Grant Mouser, Paul D. CrossRef Scott Griffiths, Richard Henshaw, Fiona H. CrossRef Christopher Wu, Jason R. CrossRef Dominic Sagoe, Rune A. Laurent, Vanessa Dubois, Frank Claessens, Sabine M. CrossRef Yong Jin Kim, Amin Tamadon, Hyun Tae Park, Hoon Kim, Seung-Yup Ku. CrossRef Yi Zhong, Chaoqiang Jiang, Kar Keung Cheng, Weisen Zhang, Yali Jin, Tai Hing Lam, Jean Woo, Gabriel Matthew Leung, C. CrossRef Kesha Rana, Maria W S Chiu, Patricia K Russell, Jarrod P Skinner, Nicole K L Lee, Barbara C Fam, Jeffrey D Zajac, Helen E MacLean.

CrossRef Giae Lee, Eunkyung Park, Heesun Chung, Yannick Jeanvoine, Kihyung Song, Riccardo Spezia. CrossRef Mohammad Javad Haerinejad, Afshin Ostovar, Mohamad Reza Farzaneh, Mojtaba Keshavarz.

CrossRef Scott Griffiths, Stuart B. Murray, Deborah Mitchison, Jonathan M. McDade, Sonny Agustin Bechayda, Lee T. CrossRef Olivier Benichou, Stephen R.

CrossRef Matthew Sharp, Kevin Shields, Jacob Rauch, Ryan Lowery, Shane Durkee, Gabriel Wilson, Eduardo De Souza. CrossRef Sachin Wankhede, Vishwaraman Mohan, Prasad Thakurdesai. CrossRef Andrew Jagim, Jonathan Mike. Drugs, Steroids, and Youth. Hu, Abraham Morgentaler, John P. CrossRef Diana Markova, Louis Richer, Melissa Pangelinan, Deborah H. Schwartz, Gabriel Leonard, Michel Perron, Pike, Suzanne Veillette, M. Sarcopenia and Androgens: A Link between Pathology and Treatment.

Performance Enhancing Hormones in Sports Doping. Androgen Physiology, Pharmacology, and Abuse. Reference Module in Biomedical Sciences. CrossRef Mette Hansen, Michael Kjaer. Sex Hormones and Tendon. Anabolic Androgenic Steroids and Stroke. CrossRef Geoffrey W Melville, Jason C Siegler, Paul WM Marshall. CrossRef Byung Chul Kim, Mee Kyoung Kim, Kyungdo Han, Sae-Young Lee, Seung-Hwan Lee, Seung-Hyun Ko, Hyuk-Sang Kwon, Anwar T.

Merchant, Hyeon Woo Yim, Won-Chul Lee, Yong Gyu Park, Yong-Moon Park. Mark Estes, Richard J. CrossRef Christian Gerber, Dominik C. Benn, Brigitte von Rechenberg, Karl Wieser. CrossRef Louis Calistro Alvarado, Martin N.

Muller, Melissa Emery Thompson, Magdalena Klimek, Ilona Nenko, Grazyna Jasienska. CrossRef Eberhard Nieschlag, Elena Vorona. Piovezan, Julio Abucham, Ronaldo Vagner Thomatieli dos Santos, Marco Tulio Mello, Sergio Tufik, Dalva Poyares. CrossRef Emanuela Mhillaj, Maria G. Morgese, Paolo Tucci, Maria Bove, Stefania Schiavone, Luigia Trabace. CrossRef Eric Rawson, Charles Brightbill, Cortney Steele. Dietary Supplements for Strength Power Athletes.

CrossRef Eric Hehman, Jordan B. CrossRef Samuele Zilioli, Aaron N. Sell, Michael Stirrat, Justin Jagore, William Vickerman, Neil V. Dunkel, Manuela Cadilek, Muhammad Agil, Tony Weingrill. CrossRef Lee Ellis, Malini Ratnasingam. CrossRef Amit Momaya, Marc Fawal, Reed Estes. CrossRef V Brancaleone, V Vellecco, D S Matassa, R d’Emmanuele di Villa Bianca, R Sorrentino, A Ianaro, M Bucci, F Esposito, G Cirino.

S biosynthesis induced by testosterone. Steroids in natural matrices. CrossRef Pandurangan Ramaraj, Jorge N. Artaza, Indrani Sinha-Hikim, Wayne E. Cellular Aspects of Nerve Injury and Regeneration. CrossRef Chris McGlory, Stuart M. Exercise and the Regulation of Skeletal Muscle Hypertrophy. CrossRef Yuka Watanabe, Yuko Miyagoe-Suzuki. CrossRef Krystian Josiak, Ewa A. Piepoli, Waldemar Banasiak, Piotr Ponikowski. CrossRef Brian W Wu, Max Berger, Jonathan C Sum, George F Hatch, E Todd Schroeder. CrossRef Jan van Amsterdam, Fred Hartgens.

CrossRef Rita Rastogi Kalyani, Mark Corriere, Luigi Ferrucci. CrossRef Kyoung Min Kim, Soo Lim, Sung Hee Choi, Jung Hee Kim, Chan Soo Shin, Kyong Soo Park, Hak Chul Jang. CrossRef Mayyada Wazaify, Ahmad Bdair, Kamal Al-Hadidi, Jenny Scott. Langille, Mohit Khera, Larry I. CrossRef Bernhard Fink, Bettina Weege, John T. CrossRef Prasanth Surampudi, Ronald S Swerdloff, Christina Wang.

Richard Dekhuijzen, Frits Franssen, Ghislaine Gayan-Ramirez, Joaquim Gea, Harry R. Gosker, Rik Gosselink, Maurice Hayot, Sabah N. Hussain, Wim Janssens, Micheal I. Polkey, Josep Roca, Didier Saey, Annemie M. Spruit, Michael Steiner, Tanja Taivassalo, Thierry Troosters, Ioannis Vogiatzis, Peter D.

CrossRef Amy Vivien Tanner, Birthe Vejby Nielsen, Judith Allgrove. CrossRef Ravi Jasuja, James C. Costello, Rajan Singh, Vandana Gupta, Catherine S.

Spina, Gianluca Toraldo, Hyeran Jang, Hu Li, Carlo Serra, Wen Guo, Pratibha Chauhan, Navjot S. Narula, Tyler Guarneri, Ayla Ergun, Thomas G. CrossRef Marie Sinclair, Peter W. Angus, Mathis Grossmann, Paul J. CrossRef Firouzeh Dehghan, Sekaran Muniandy, Ashril Yusof, Naguib Salleh.

CrossRef Seung Won Lee, Yoosik Youm, Chang Oh Kim, Won Joon Lee, Wungrak Choi, Sang Hui Chu, Yeong-Ran Park, Hyeon Chang Kim. Archives of Gerontology and Geriatrics. CrossRef Paul Davis, Lisa Edwards. CrossRef Mohit Khera, David Crawford, Alvaro Morales, Andrea Salonia, Abraham Morgentaler. Hormone Use and Abuse. Alp Ikizler, Noel J. Cano, Harold Franch, Denis Fouque, Jonathan Himmelfarb, Kamyar Kalantar-Zadeh, Martin K.

Kuhlmann, Peter Stenvinkel, Pieter TerWee, Daniel Teta, Angela Yee-Moon Wang, Christoph Wanner. CrossRef Martina Velders, Patrick Diel. Todd Schroeder, Matthew Villanueva, Daniel D. CrossRef Giulia Rastrelli, Giovanni Corona, Linda Vignozzi, Elisa Maseroli, Antonio Silverii, Matteo Monami, Edoardo Mannucci, Gianni Forti, Mario Maggi.

CrossRef Mathis Grossmann, Ada S. Atkinson, Mette Hansen, Vuokko Kovanen. Henkel, Ruxiang Wang, Susan H. Bassett, Tao Chen, Na Liu, Ying Zhu, Mohd Ismail Tambi. CrossRef Thue Kvorning, Louise L. Christensen, Klavs Madsen, Jakob L. Gejl, Kim Brixen, Marianne Andersen. Croymans, Najib Aziz, Anthony W. CrossRef Victoria Wobber, Brian Hare, Susan Lipson, Richard Wrangham, Peter Ellison.

CrossRef Xuqing Zhang, Zhihua Sui. CrossRef Vishal Viswambharan, Jothika N Manepalli, George T Grossberg. Yadav, Pranjal Chandra, Rajendra N. Duncan, Nelo Eidy Zanchi. Performance Enhancement Drugs and Sports Supplements for Resistance Training. CrossRef Michael Mawhinney, Angelo Mariotti. An Overview of Doping in Sports.

The Role of Testosterone in Nutrition and Sports. CrossRef Fatemeh Tanehkar, Ali Rashidy-Pour, Abbas Ali Vafaei, Hamid Reza Sameni, Saeed Haghighi, Hossien Miladi-Gorji, Fereshteh Motamedi, Maziar Mohammad Akhavan, Kowsar Bavarsad. CrossRef Ali Atan, Altug Tuncel, Suleyman Yesil, Derya Balbay.

Meyer, Brigitte Von Rechenberg, Hans Hoppeler, Robert Frigg, Mazda Farshad. Hoyos, Roo Killick, Brendon J. CrossRef Gen Kanayama, Harrison G. CrossRef Katarzyna Pisanski, Sandeep Mishra, Drew Rendall. CrossRef Katrina Karkazis, Rebecca Jordan-Young, Georgiann Davis, Silvia Camporesi. A Critique of the New Policies on Hyperandrogenism in Elite Female Athletes. CrossRef Young-Eun Yoo, Chien-Ping Ko, Lin Mei. CrossRef Melissa Braga, Shalender Bhasin, Ravi Jasuja, Shehla Pervin, Rajan Singh.

Dodson, Jun Sakai, Joseph C. CrossRef Halimatun Saadiah Abdul Razak, Ahmad Nazrun Shuid, Isa Naina Mohamed. Eys, Michael Emond, Michael Buzdon. CrossRef Mikako Sakamaki, Tomohiro Yasuda, Takashi Abe. Clinical Physiology and Functional Imagingno-no. CrossRef Katrien Wierckx, Eva Van Caenegem, Els Elaut, David Dedecker, Fleur Van de Peer, Kaatje Toye, Steven Weyers, Piet Hoebeke, Stan Monstrey, Griet De Cuypere, Guy T’Sjoen.

CrossRef Mohammed Z Allouh. CrossRef C Gerber, D C Meyer, K M Nuss, M Farshad. Cellular and Molecular Life Sciences. CrossRef Tom Hildebrandt, James W. Langenbucher, Justine Karmin Lai, Katharine L. Nikolopoulos, Chara Spiliopoulou, Stamatios E. CrossRef Xin-Hua Liu, Shen Yao, Rui-Fang Qiao, Alice C. Levine, Alexander Kirschenbaum, Jiangping Pan, Yong Wu, Weiping Qin, William A. CrossRef Mohit Khera, Rajib K. Bhattacharya, Gary Blick, Harvey Kushner, Dat Nguyen, Martin M. Hancock, Domingo Rodriguez, Shontelle T.

CrossRef Eric J Ip, Mitchell J Barnett, Michael J Tenerowicz, Paul J Perry. CrossRef Kusuma Boregowda, Lisa Joels, Jeffrey W. CrossRef Niloufar Ilani, Ronald S. International Journal of Andrologyno-no. CrossRef Marcin Grandys, Joanna Majerczak, Justyna Zapart-Bukowska, Jan Kulpa, Jerzy A Zoladz. CrossRef Paulo Adriano Schwingel, Helma P.

Crewther, Christian Cook, Marco Cardinale, Robert P. CrossRef Fabio Lanfranco, Ezio Ghigo, Christian J. Hormones and Athletic Performance. CrossRef Mervyn Singer, Michael A Matthay. The Regulation of Amino Acid and Protein Metabolism by Growth Hormone. CrossRef Jorn Woerdeman, Willem de Ronde. CrossRef Alon Eliakim, Mia Cale-Benzoor, Beatrice Klinger-Cantor, Enrique Freud, Dan Nemet, Elad Feigin, Neomi Weintrob. Rhett Rigby, Paul La Bounty, Brian Shelmadine, Rodney G.

Lichar Dillon, William J. CrossRef Sefa Lok, Erdal Tasgin, Nagehan Demir, Mehmet Ozdemir. CrossRef Andreu Fabregat, Oscar J. Pozo, Josep Marcos, Jordi Segura, Rosa Ventura.

Trumble, Eleanor Brindle, Michalina Kupsik, Kathleen A. CrossRef David Glass, Ronenn Roubenoff. CrossRef Eric J Ip, Mitchell J Barnett, Michael J Tenerowicz, Jennifer A Kim, Hong Wei, Paul J Perry.

Andrada e Silva, Hudson S. CrossRef Mary Mulcahey, Jonathan Schiller, Michael Hulstyn. CrossRef Zudin Puthucheary, Stephen Harridge, Nicholas Hart. Male Sex Hormones, Analogs, and Antagonists. Burger’s Medicinal Chemistry and Drug Discovery. CrossRef BasariaShehzadCovielloAndrea D. Free Full Text Vincenzo Denaro, Laura Ruzzini, Umile Giuseppe Longo, Francesco Franceschi, Barbara Paola, Achille Cittadini, Nicola Maffulli, Alessandro Sgambato.

CrossRef Fotios Dimitriadis, Evlalia Vlachopoulou, Stavros Gratsias, Dimitrios Baltogiannis, Dimitrios Giannakis, Panagiota Tsounapi, Michael Rimikis, Nikolaos Pardalidis, Takeshi Watanabe, Motoaki Saito, Ikuo Miyagawa, Nikolaos Sofikitis. Androgen replacement—indications and principles. CrossRef Jan van Amsterdam, Antoon Opperhuizen, Fred Hartgens.

CrossRef Gen Kanayama, James I. CrossRef Roth-Visal Ung, Pascal Rouleau, Pierre A. CrossRef Thomas T Perls. CrossRef Pierre-Edouard Sottas, Martial Saugy, Christophe Saudan.

CrossRef Karen Choong, Shehzad Basaria. CrossRef Diala El-Maouche, Adrian Dobs. Testosterone Replacement Therapy in Men and Women. CrossRef Katleen Huyghe, Jerry F. Moore, Bieke Vanhooydonck, Raoul Van Damme, Miguel Molina-Borja, Anthony Herrel.

CrossRef Shalender Bhasin, Rajan Singh, Ravi Jasuja, Thomas W. Androgen Effects on the Skeletal Muscle. DHEA, Important Source of Sex Steroids in Men and Even More in Women. CrossRef Yves Rolland, Bruno Vellas. Nutrition, Pharmacology, and Psychology in Sports.

Reeves, Vasilios Baltzopoulos, David A. CrossRef Nadine Hugill, Bernhard Fink, Nick Neave. CrossRef Risto Huupponen, Ilpo Huhtaniemi, Aapo Lehtonen. CrossRef Yves Rolland, F. Abellan van Kan, A. CrossRef RL Thomson, JD Buckley, LJ Moran, M Noakes, PM Clifton, RJ Norman, GD Brinkworth. CrossRef Jay R Hoffman, William J Kraemer, Shalender Bhasin, Thomas Storer, Nicholas A Ratamess, G Gregory Haff, Darryn S Willoughby, Alan D Rogol.

CrossRef Hemant Kumar Srivastava, Farhan Ahmad Pasha, Sunil Kumar Mishra, Pashupati Prasad Singh. CrossRef Fahd Aziz Zarrouf, Steven Artz, James Griffith, Cristian Sirbu, Martin Kommor. Jankowska, Gerasimos Filippatos, Beata Ponikowska, Ludmila Borodulin-Nadzieja, Stefan D.

Anker, Waldemar Banasiak, Philip A. CrossRef Paresh Dandona, Sandeep Dhindsa, Anil Chandel, Ajay Chaudhuri. CrossRef Shalender Bhasin, Ravi Jasuja. LeBrasseur, Newsha Lajevardi, Renee Miciek, Norman Mazer, Thomas W.

A biological advantage for fertility and gestation. CrossRef Abraham Morgentaler, Abdulmaged M. Use and Abuse of Anabolic-Androgenic Steroids and Androgen Precursors.

CrossRef Sonya Marshall-Gradisnik, Rachel Green, Ekua Brenu, Robert Weatherby. CrossRef Gordon S Lynch. Vaughn, Matt DeLisi, John Paul Wright. Storer, Linda Woodhouse, Lynne Magliano, Atam B.

Singh, Connie Dzekov, Jeanne Dzekov, Shalender Bhasin. Travison, Shalender Bhasin, Gretchen R. Bigelow, Prabin Thapa, Ann L. Charles Ford, Jill M. CrossRef Francesca Wannenes, Massimiliano Caprio, Lucia Gatta, Andrea Fabbri, Sergio Bonini, Costanzo Moretti. Mazurek, Isabella Zaniletti, Andrew B. CrossRef Gordon S Lynch, Jonathan D Schertzer, James G Ryall. CrossRef Talal M Al-Harbi, Laura J Bainbridge, Matthew J McQueen, Mark A Tarnopolsky. CrossRef A T Kicman. A basis for illegal performance enhancement.

CrossRef Arimantas Lionikas, David A. CrossRef D J Handelsman. CrossRef Karen Choong, Kishore M. Wu, Haiying Tang, Christopher Tong, Steve B. CrossRef C Martyn Beaven, Christian J Cook, Nicholas D Gill. CrossRef Michael R Graham, Bruce Davies, Fergal M Grace, Andrew Kicman, Julien S Baker. CrossRef Listing of Deleted DOIs. CrossRef Jeffrey L Levy, Jorge Cabrera, Sean Thomas, Fred H Brennan. CrossRef Tetsuo Hayashi, Takumi Yamada. Heinberg, Michael Boroughs, J. Exercise and Protein Metabolism.

CrossRef Berna Celik, Aynur Sahin, Nil Caglar, Belgin Erhan, Berrin Gunduz, Ozlem Gultekin, Muhammet Karabulut. CrossRef Mark Tarnopolsky, A Maher.

Nutritional Implications of Sex and Age Differences in Energy Metabolism. CrossRef C A Allan, B J G Strauss, R I McLachlan. CrossRef Horace Perry, John Morley, Gary Wittert.

Carlin, Richard Casaburi, Charles F. Mahler, Barry Make, Carolyn L. Rochester, Richard ZuWallack, Carla Herrerias. CrossRef Mark Tarnopolsky, Brian Timmons. CrossRef G M C Rosano, I Sheiban, R Massaro, P Pagnotta, G Marazzi, C Vitale, G Mercuro, M Volterrani, A Aversa, M Fini. CrossRef Thue Kvorning, Marianne Andersen, Kim Brixen, Peter Schjerling, Charlotte Suetta, Klavs Madsen.

CrossRef DUNG THAI, CHRISTINE A. Performance Enhancers Steroids, Creatine, DHEA. CrossRef Bernhard Fink, Nick Neave, Hanna Seydel. Energy Balance and Feeding.

CrossRef Joerg Hasler, Roberto Herklotz, Peter B. Diver, Mario Thevis, Jochen Metzger, Reto Savoca, Fernando Jermini, Andreas R. Pharmacologic Manipulation of the Healing Wound.

CrossRef Norbert Baume, Yorck Olaf Schumacher, Pierre-Edouard Sottas, Carlo Bagutti, Michel Cauderay, Patrice Mangin, Martial Saugy.

Sex Hormones Male : Analogs and Antagonists. Encyclopedia of Molecular Cell Biology and Molecular Medicine. Haren, Moon Jong Kim, Syed H. Schopp, Mary Clark, Micah O. BROWN, MATTHEW VUKOVICH, DOUGLAS S. CrossRef Carl Grunfeld, Donald P. Kotler, Adrian Dobs, Marshall Glesby, Shalender Bhasin. CrossRef Shalender Bhasin, Olga M Calof, Thomas W Storer, Martin L Lee, Norman A Mazer, Ravi Jasuja, Victor M Montori, Wenqing Gao, James T Dalton.

CrossRef Vasantha Padmanabhan, Mohan Manikkam, Sergio Recabarren, Douglas Foster. CrossRef Giuseppe D’Antona, Francesca Lanfranconi, Maria Antonietta Pellegrino, Lorenza Brocca, Raffaella Adami, Rosetta Rossi, Giorgio Moro, Danilo Miotti, Monica Canepari, Roberto Bottinelli. CrossRef Tom Hildebrandt, James Langenbucher, Sasha Carr, Pilar Sanjuan, Steff Park.

Anabolic Steroids and Other Performance-Enhancing Substances in the Adolescent Athlete. CrossRef Melanie J Walton, Richard A A Anderson. CrossRef Rabih Hijazi, Glenn R. Androgens, Anabolic Steroids, and Glucocorticoids.

CrossRef Matthias Turina, Mirjam Christ-Crain, Hiram C. Isidori, Elisa Giannetta, Emanuela A. Greco, Daniele Gianfrilli, Vincenzo Bonifacio, Aldo Isidori, Andrea Lenzi, Andrea Fabbri. CrossRef Anders Eriksson, Fawzi Kadi, Christer Malm, Lars-Eric Thornell.

CrossRef Manolis Markianos, Marios Panas, Nikos Kalfakis, Dimitrios Vassilopoulos. CrossRef Franco Laghi, W. Edwin Langbein, Andreea Antonescu-Turcu, Amal Jubran, Christine Bammert, Martin J. CrossRef Barry Dickinson, Linn Goldberg, Diane Elliot, Daniel Spratt, Alan D. Rohrer, Douglas Hayden, Stephen D. Soliman, Ibrahim Nasr, Alaa Thabet, Mustafa M.

Rizk, Wael El Matary. CrossRef Stephen P Bird, Kyle M Tarpenning, Frank E Marino. CrossRef Eui Sil Hong, Sung Yeon Kim, Young Ju Choi, Sang Wan Kim, Chan Soo Shin, Kyong Soo Park, Hak Chul Jang, Seong Yeon Kim, Bo Youn Cho, Hong Kyu Lee. CrossRef Tianshun Xu, Ying Shen, Heather Pink, Jim Triantafillou, Stephen A. Stimpson, Philip Turnbull, Bajin Han.

CrossRef Richard Casaburi, Shalender Bhasin, Louis Cosentino, Janos Porszasz, Attila Somfay, Michael I. Lewis, Mario Fournier, Thomas W. Pope, Gen Kanayama, Martin Ionescu-Pioggia, James I.

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Adobe Flash Player is required to view this feature. If you are using an operating system that does not support Flash, we are working to bring you alternative formats. Background Athletes often take androgenic steroids in an attempt to increase their strength. Conclusions Supraphysiologic doses of testosterone, especially when combined with strength training, increase fat-free mass and muscle size and strength in normal men.

Methods Study Design This study was approved by the institutional review boards of the Harbor—UCLA Research and Education Institute and the Charles R. Assessment of Muscle Size Muscle size was measured by MRI of the arms and legs at the humeral or femoral mid-diaphyseal level, the junction of the upper third and middle third of the bone, and the junction of the middle third and lower third.

Analysis of Body Composition Fat-free mass was estimated on the basis of measurements of body density obtained by underwater weighing. Measures of Muscle Strength The effort-dependent performance of muscle was assessed on the basis of the maximal weight lifted for one repetition during the bench-press and squatting exercises. Statistical Analysis The Shapiro and Wilk test was used to test whether the outcome variables had a normal distribution.

Endocrine Responses The base-line serum concentrations of total and free testosterone in the four groups were similar. Mood and Behavior No differences were found between the exercise groups and the no-exercise groups or between the placebo groups and the testosterone groups in any of the five subcategories of anger assessed by the Multidimensional Anger Inventory. Discussion Our results show that supraphysiologic doses of testosterone, especially when combined with strength training, increase fat-free mass, muscle size, and strength in normal men when potentially confounding variables, such as nutritional intake and exercise stimulus, are standardized.

Source Information From the Department of Medicine, Charles R. Most Viewed Last Week. Denying Visas to Doctors in the United States.

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There are many causes of high testosterone in women, and the symptoms of high testosterone levels can be just as debilitating as low testosterone levels.

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