Differences of "Menarche" Viewed from Geographical Location Nina Sutresna, Mona Fiametta Febrianty and Lilis Komariyah Faculty of Health and Sport Education, Universitas Pendidikan Indonesia, Jln. Setiabudhi No.229, Bandung 40154, Indonesia nina.sutresna@upi.edu Keywords: Menarche, highland, lowland. Abstract: This research is based on the assumption that geographical location will affect the incidence of "menarche" in a girl. Thus, the main objective of the research was to find out the differences in the incidence of "menarche" among female students in the highlands and lowlands. This research is a descriptive research. The number of samples was 255 people, consisted of 5-8 grade students aged 10-14 years in Lembang, Kuningan and Cirebon West Java. The sampling technique used was random technique. The research results showed that there were menarche differences between students in the highlands and lowlands. Menarche of the schoolgirls studying and living on highlands generally occurs above the age of 11 years, while on the lowlands, the percentage of menarche occurrence experienced at the age of 11 years. Menarche experienced by girls at the age of 10 years is more common to happen to the girls living on the lowlands, while menarche delay occurred to schoolgirls living more on the highlands than on the lowlands. 1 INTRODUCTION Achievement sports is menstruation. The menstrual cycle is considered to be a disruption to either participating in the sports process or during menstruation that tends to impact on emotional changes and in motion stimuli changes. Menstruation occurs to women starting at puberty age and marking a woman's ability to conceive a child. The first menstruation is called menarche. Not until a girl enters the puberty age, does the egg begin functioning and a process called the menstrual cycle occurs. Menstruation usually begins between the ages of 10 and 16, depending on various factors, including the girls’ health, nutritional status, and relative body weight to the body's height. The average length of the cycle can vary in one girl during different times of life, and even from month to month depending on a variety of things including her physical, emotional, and nutritional health. Under normal circumstances, menarche (first menstruation) begins with a maturation period that can take 2 years. Based on the preliminary observation result, with the help of a P.E teacher in some primary schools, it is known that students who experience menarche tend not to follow the P.E lessons and even other lessons with the sick reason for up to three days. Psychological changes occur in these students, making them quieter, easily irritated and less active in learning. The condition is very reasonable because most students are not ready to face the menarche period. This indirectly becomes part of the task of the P.E teachers to help restore the psychological state that occurs due to menarche and provide a correct understanding of it. An earlier menarche period will have an impact on the emotional and psychological instability of adolescents who are not ready to face the menarche. The consequences arising from unpreparedness have an impact on changes in adolescent behavior patterns that tend to be more introvert, shy or shock. Adolescents who are having menstruation are required to protect themselves from behaviors that can be new issues such as promiscuity. Late information about menstruation or menarche is feared to adversely affect children either psychologically or physically. This research is aimed to study how big the differences of geographical location can affect menarche experienced by the pre-teenager. The connection between temperatures and geographical condition is an important part in determining samples. Research on the effect of temperatures or geographical location on the coming of menarche will 494 Sutresna, N., Febrianty, M. and Komariyah, L. Differences of "Menarche" Viewed from Geographical Location. In Proceedings of the 2nd International Conference on Sports Science, Health and Physical Education (ICSSHPE 2017) - Volume 1, pages 494-498 ISBN: 978-989-758-317-9 Copyright © 2018 by SCITEPRESS – Science and Technology Publications, Lda. All rights reserved