Body Composition and Sport Performance Among Young Female Soccer Players Using Subdermic Etonogestrel

Changes in Body Composition and Sport Performance Among Young Female Soccer Players Using Subdermic Etonogestrel (Implanon NXT)

The goal of this clinical trial study is to evaluate the effect of subdermic etonogestrel implant on body composition, sport performance parameters, quantify bleeding patters and quality of life parameters among young female soccer players.

Studies indicate a worsening of performance in young people with excessive menstrual bleeding and menstrual cramps. Hormonal contraception has been used to "manipulate" menstrual symptoms among physically active women, amateur and elite athletes. The use of the etonogestrel subdermal implant (Implanon NXT) would be a good option for young female soccer players. The goal of this study is to evaluate some parameters among young female soccer players under 17 years old during one year, in use of subdermic etonogestrel implant comparing with a non-users subdermic etonogestrel implant

Inclusion Criteria:

- sexually active women of childbearing potential, with no contraindications to the use of a progestogen and who agreed to participate in this study.

Exclusion Criteria:

• breastfeeding, irregular vaginal bleeding, increased risk of thromboembolism, ischemic heart disease or other medical conditions