BALANCE AND BODY MASS RELATIONSHIP CASE" GIRLS IN MENSTRUATION PERIOD"

Our experience is based on the period of grill life, exactly when they transitions from childhood to adulthood Especially in Menstruation where the girl is turning into a woman. From that, our interest based on Balance, which is the ability to maintain the body’s center of mass over its base of support the complexity of the human balance system, creates challenges in diagnosing and treating the underlying cause of imbalance. The literature reveal that, Vestibular dysfunction as a cause of imbalance offers a particularly intricate challenge because of the vestibular system’s interaction with cognitive functioning in our case we have chosen our subjects visual sensitivity equal 10/10. To evaluate the correlation between body mass index (BMI) and postural balance as Relationship between the pivot base (Area of the instep) within adulthood (period of Menstruation). From that, our subjects were 15 middle school girls who do not practice any physical activity where their Ranging Aged located between 13.14 and their selection was intentional as condition that they Menstruation for the first time and accepted volunteered to participate in our experience for a period of one academic year. In order to observe changes caused by the period we have distributed the sample depending on the base of equation BMI, and calculation of the center gravity based on the law of the lever from the test of Balance Board . To verify the hypothesis that support: ? Which differences and relationship can be observed at the end of the school year (2014-2015) between the variables Selected for study? From that, our aims for this study interest: ? Observing the changes caused by the period based on the data used in the experiment. ? explains the effects of the independent variable (age characteristics) on the dependent variable (the ideal weight and balance). For that, we have chosen the analysis the correlation to compare the implementation differences and the relationship that can be observed between the variables Selected for study. Based in the results accuses and Age properties we confirm: (1) Move away from the ideal weight contributes to obesity and Flat instep; (2) There is a strong relationship between Pivot base, balance and the ideal weight (3) Incompatibility of the Tall with ideal weight contributes to the weakness of the focal base (flatness instep), which contributes to the loss of balance. Key words: Balance, body mass, pivot base.