Many young women who exercise regularly and use oral contraceptives (OCs) are not aware of the effects of hormones on their body composition. High-intensity workouts and weight-lifting exercises usually result in muscle gain. Taking potent hormones such as birth control pills could impair muscle response to standardized exercise.
A study published in The Journal of Strength and Conditioning Research compared the muscle growth of women on hormonal birth control and those who were not using hormonal contraception. The women were between the ages of 18-and 29 years and completed a 10-week total-body resistance training program designed to build muscle.
The authors of the study used hydrostatic weighing to determine body composition, and blood samples were taken before and after training to measure the hormones, dehydroepiandrosterone (DHEA), DHEA sulfate (DHEAS), IGF-1, and cortisol levels.
The authors reported that the group of women who were on hormonal birth control developed 40% less lean muscle mass than the women who were not taking hormonal birth control. Additionally, there were significant differences in lean mass gains depending on the type of progestin in hormonal contraceptives users. The more androgenic progestin used less muscle gain was found. Hormonal profiles at rest and post-workout showed that the women taking birth control had lower levels of anabolic hormones (DHEA, DHEAS, and IGF-1), but higher levels of cortisol.
Muscle growth is influenced by several hormones in the woman’s body. Testosterone and growth hormone cause muscle gain. In contrast, cortisol is a catabolic hormone, meaning it breaks muscle tissue down.
The authors of the study concluded that the diminished lean mass may be related to the effect of hormonal contraceptives on anabolic and catabolic hormone levels. Also, progestin present in hormonal contraceptives may bind to androgen receptors and inhibit its function.
Young women need to be informed of the side effects and hormonal changes caused by birth control. Although more research needs to be done in this area, safer alternatives to birth control need to be considered to achieve not only muscle-focused fitness goals but general health and wellbeing.
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In "Prove it God" Patty Schneier speaks as a Catholic woman and mother in our modern times. She tells her personal story of how God worked in her heart to turn her away from contraception and toward Natural Family Planning.
Patty Schneier's "Prove It, God" ...And He Did is available to listen to for free! Order it!
Stephen Patton M.A., J.D.
Stephen Patton's "Why Contraception Matters" talk is available to listen to for free! Read it!Order it!
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Birth Control Can Negatively Affect Muscle Gains in Young Women
Many young women who exercise regularly and use oral contraceptives (OCs) are not aware of the effects of hormones on their body composition. High-intensity workouts and weight-lifting exercises usually result in muscle gain. Taking potent hormones such as birth control pills could impair muscle response to standardized exercise.
A study published in The Journal of Strength and Conditioning Research compared the muscle growth of women on hormonal birth control and those who were not using hormonal contraception. The women were between the ages of 18-and 29 years and completed a 10-week total-body resistance training program designed to build muscle.
The authors of the study used hydrostatic weighing to determine body composition, and blood samples were taken before and after training to measure the hormones, dehydroepiandrosterone (DHEA), DHEA sulfate (DHEAS), IGF-1, and cortisol levels.
The authors reported that the group of women who were on hormonal birth control developed 40% less lean muscle mass than the women who were not taking hormonal birth control. Additionally, there were significant differences in lean mass gains depending on the type of progestin in hormonal contraceptives users. The more androgenic progestin used less muscle gain was found. Hormonal profiles at rest and post-workout showed that the women taking birth control had lower levels of anabolic hormones (DHEA, DHEAS, and IGF-1), but higher levels of cortisol.
Muscle growth is influenced by several hormones in the woman’s body. Testosterone and growth hormone cause muscle gain. In contrast, cortisol is a catabolic hormone, meaning it breaks muscle tissue down.
The authors of the study concluded that the diminished lean mass may be related to the effect of hormonal contraceptives on anabolic and catabolic hormone levels. Also, progestin present in hormonal contraceptives may bind to androgen receptors and inhibit its function.
Young women need to be informed of the side effects and hormonal changes caused by birth control. Although more research needs to be done in this area, safer alternatives to birth control need to be considered to achieve not only muscle-focused fitness goals but general health and wellbeing.
This entry was posted on Monday, April 18th, 2022 at 5:42 pm and is filed under News & Commentary. You can follow any responses to this entry through the RSS 2.0 feed. You can skip to the end and leave a response. Pinging is currently not allowed.