milleniumgirl
Guest
- Sep 12, 2010
- 617
- 18
Young women using birth control pills have more difficulty gaining muscle mass with exercise than those who do not take the pill, according to Texas A & M University study in the United States.
The analysis included 73 healthy women aged 18-31 who did resistance exercises (such as bodybuilding) three times a week for two and a half months and were encouraged to ingest enough protein for muscle gain. And the results indicated that those taking the contraceptive pill had a lower gain of muscle mass - 2.1%, compared to 3.5% of those who did not use oral contraceptives.
That big difference was surprising to the researchers, who also found that these women would have lower blood levels of three "muscle-building" hormones and a higher concentration of a "muscle-wrating" hormone. This, they said, could explain the relationship between the use of the pill and less muscle gain.
The analysis included 73 healthy women aged 18-31 who did resistance exercises (such as bodybuilding) three times a week for two and a half months and were encouraged to ingest enough protein for muscle gain. And the results indicated that those taking the contraceptive pill had a lower gain of muscle mass - 2.1%, compared to 3.5% of those who did not use oral contraceptives.
That big difference was surprising to the researchers, who also found that these women would have lower blood levels of three "muscle-building" hormones and a higher concentration of a "muscle-wrating" hormone. This, they said, could explain the relationship between the use of the pill and less muscle gain.