A steroid hormone interacts with receptors in the nucleus of a cell, while a peptide hormone works with receptors on a cell membrane. Testosterone is an anabolic steroid the body produces that, in addition to other functions, promotes muscle growth by interacting with receptors in the nuclei of muscle cells to help repair muscle proteins damaged during exercise. Testosterone is also an androgen that promotes sexual development in men. Testosterone is produced primarily in the Leydig cells of the male testes.
The synthetic testosterone taken by those looking to promote rapid muscle growth is called exogenous androgen because it is a substance produced outside of the body. Whether you want to call it an anabolic steroid or an androgen, both are correct, testosterone is a completely natural substance that enhances muscle growth as part of the normal post-exercise repair and recovery process.
As you age, your body will produce less testosterone. Andropause affects men over the age of 30, causing them to produce less testosterone. A study by Baker and colleagues, for example, had. Each group had blood drawn before and after the workout to measure how the exercise influenced testosterone production. Prior to the workout the younger group had a higher level of Testosterone, but after the workout, all three groups showed an increase in the hormone.
These findings suggest that you should make high-intensity strength training a consistent part of your exercise program if you want to maintain testosterone in your body during the aging process. Even if you are a little older and have been sedentary for a period of time, research suggests high-intensity interval training HIIT can help improve the production of free testosterone. In this study, 22 sedentary male participants average age: 62 years performed a total of nine HIIT workouts on a bicycle ergometer; each workout consisted of six sprint intervals of 30 seconds each followed by three-minute recovery intervals.
Multiple sets of strength-training exercises performed to the point of fatigue could be an effective strategy for enhancing testosterone production. According to a literature review by Kraemer and Ratamess, strength training causes the body to make four specific adaptations as it relates to testosterone production: 1 acute changes during and within the first 30 minutes post-exercise; 2 long-term changes that increase resting levels; 3 long-term changes in how efficiently the body produces testosterone as the result of exercise; and 4 an increase in the number of receptor sites that interact with testosterone.
As receptor sites increase, there is a better chance that the elevated levels of circulating testosterone post-exercise will have a positive effect on muscle growth. The researchers concluded that a high volume of high-intensity strength training that engages large amounts of muscle mass combined with relatively short rest intervals of one minute or less helps to promote testosterone production. Enhancing the metabolic effect of strength training by reaching a point of fatigue can be an effective way to ensure that the body produces enough testosterone to promote muscle growth.
In a review of the research literature, Vingren and colleagues noted that heavy strength training promotes both total testosterone and free testosterone the levels of the hormone circulating through the bloodstream that can attach to the binding proteins responsible for carrying it to receptor sites in cell nuclei. The researchers suggest that to promote testosterone, exercise selection should focus on compound movements with shorter rest intervals.
While the body does produce less testosterone over the lifespan, exercising to a point of fatigue for either strength or cardio is essential for testosterone production. Sign up to receive relevant, science-based health and fitness information and other resources. Act Now! Choose Your Program. Act now! If you require full access to the site as an industry professional eg, Media, Advertising Client, etc please Email us HERE , and include your company, business title, phone number and reason for requiring access.
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A study published in the European Journal of Applied Physiology in May showed that with increased intensity levels of training, there was a higher increase of testosterone levels compared to subjects that trained at a moderate level 1. Try to get aroused naturally, not with pills. With testosterone not flowing like it should, it is a commonly difficult to get an erection.
A decrease in testosterone levels is also caused by not getting stimulated over long periods of time. Sperm do not like it warm. A study published in the Society of Reproduction and Fertility journal in showed that by keeping testicles cooled, they produce higher testosterone levels.
Boxers and shorts are a good way to keep cool. All it takes is two drinks a day. When alcohol enters the liver, it has difficulty breaking down estrogen. Extra estrogen means less testosterone. Stay away from alcohol. Former nurse, nutritionist and health expert Sandy Halliday argues that eating raw cruciferous vegetables helps rid the body of estrogen. Timothy Townsend is a health and fitness writer whose work has appeared in various online publications.
He recently received his bachelor's degree with a double major in education and kinesiology. Monitor the health of your community here. More Articles. Written by Timothy Townsend. References BodyBuilding. Testosterone and cortisol in relationship to dietary nutrients and resistance exercise. Journal of Applied Physiology, 82 1 , Wang, C.
Low-fat high-fiber diet decreased serum and urine androgens in men. Heller, R. Relationship of high density lipoprotein cholesterol with total and free testosterone and sex hormone binding globulin. Acta Endocrinologica, 2 , Blesso, C.
Whole egg consumption improves lipoprotein profiles and insulin sensitivity to a greater extent than yolk-free egg substitute in individuals with metabolic syndrome. Metabolism, 62 3 , In the end each one is comprised of the same active hormone but as the ester affects the total mass of the compound it also affects the total half-life; if we are to maintain stable testosterone levels this must be understood.
Most who supplement with testosterone will do so normally with long ester based or short ester based testosterone; while moderate ester based testosterone is available it is rarely available in a single ester based form and generally part of a testosterone mixture comprised of several single ester based forms. While there are many long ester based forms of testosterone or large ester based depending on how you look at it, by-in-large the two most common are Testosterone-Cypionate and Testosterone-Enanthate.
The Cypionate form carries with it a half-life of approximately 12 days; what this means is that after an injection of the hormone 12 days later half of the active dose will still be active in the body. For example, an injection of mg will yield mg of active testosterone 12 days later and 50mg the next 12 days later and so on and so on. We cannot arbitrarily inject our long ester forms, doing so would cause our testosterone levels do be all over the place, up then down like a rollercoaster.
With most long ester based forms of testosterone an injection once per week will suffice but for the performance enhancer who wishes to not only maintain proper testosterone levels but to do so at its peak twice weekly injections of an equal dosing will be far more efficient. In many competitive bodybuilding circles, although it is not medically necessary individuals often administer long ester testosterones on an every other day to daily basis, splitting their dosage up into a multitude of small regular injections.
For the average performance enhancer this is unnecessary but such practice will ensure testosterone levels are at their peak throughout use. While long ester based forms are quite popular there is one short ester based testosterone that is equal in popularity and it is that of Testosterone-Propionate. As a short ester based testosterone the Propionate version carries with it a half-life of approximately 4 days and by this nature one can already see frequent injections are going to be necessary if testosterone levels are to be maintained.
In the grand scheme of action one could maintain proper testosterone levels with an injection every three days but to keep peak testosterone levels at their peak an administration schedule of every other day will prove to be far more optimal and efficient. In the end it is fairly simple; in order to maintain proper testosterone levels when supplementing with exogenous testosterone you must understand the active half-life associated with the compound.
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