HUBUNGAN INDEKS MASSA TUBUH DAN PERSENTASE LEMAK TUBUH DENGAN USIA MENARCHE DAN KETERATURAN SIKLUS MENSTRUASI (Studi pada Siswi SMPN I Hulu Gurung Kabupaten Kapuas Hulu Kalimantan Barat tahun 2007)

DAHLIANSYAH, DAHLIANSYAH (2008) HUBUNGAN INDEKS MASSA TUBUH DAN PERSENTASE LEMAK TUBUH DENGAN USIA MENARCHE DAN KETERATURAN SIKLUS MENSTRUASI (Studi pada Siswi SMPN I Hulu Gurung Kabupaten Kapuas Hulu Kalimantan Barat tahun 2007). Undergraduate thesis, Diponegoro University.

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Abstract

Di negara maju perbaikan status gizi telah menurunkan rata-rata usia menarche menurun sampai ke usia 12,8 tahun. Sedangkan di negara berkembang, seperti Indonesia pendewasaan fisik berjalan lebih lama, sehingga usia menarche muncul lebih lambat. Oleh karena itu penelitian ini ingin melihat apakah menurunnya usia menarvhe tersebut juga terjadi pada di negara yang sedang berkembang dengan kondisi status gizi yang lebih rendah. Tujuan penelitian untuk mengetahui hubungan Indeks Massa Tubuh dan persentase lemak tubuh dengan usia menarche dan keteraturan siklus menstruasi. Jenis penelitian yang dilakukan merupakan explanatory research dengan cross sectional. Populasi pada penelitian ini adalah seluruh siswi SMPN I Hulu Gurung Kecamatan Hulu Gurung Kabupaten Kapuas Hulu Kalimantan Barat. Pemilihan sampel sebanyak 57 responden dilakukan dengan teknik purposive sampling, dengan kriteria inklusi dan eksklusi. Pengambilan data dilakukan dengan menggunakan metode wawancara dengan kuesioner dan pengukuran antropometri (BB, TB, persentase lemak tubuh diukur dengan menggunakan alt bio impedance analyzer). Analisa data menggunakan uji Korelasi Product Moment dan Uji Independent t test. Hasil penelitian menunjukkan 45,6% responden mempunyai Indeks Massa Tubuh yang rendah (<18,5). Sebagian besar responden 57,9% mempunyai persentase lemak tubuh yang rendah (<20%). Rata-rata usia menarche responden adalah 12,3 tahun, dengan umur menarche minimum adalah 10,1 tahun san umur maksimum 15,8 tahun. Sebagian besar responden mempunyai siklus menstruasi tidak teratur. Semakin tinggi Indeks Massa Tubuh semakin awal usia menarche responden dengan nilai r=-0,402 dan p=0,02. Ada hubungan antara indeks massa tubuh dengan keteraturan siklus menstruasi (x2=5.284, p=0.022, contingency coefficient=0.291). Semakin tinggi presentase lemak tubuh maka semakin awal usia menarche responden dengan nilai r=-0,445 dan p=0,001. Ada hubungan antara persentase lemak tubuh dengan keteraturan siklus menstruasi (x2=6.193, p=0.013, contingency coefficient=0.313). Kesimpulan, ada hubungan antara Indeks Massa Tubuh, persentase lemak tubuh usia menarche pada remaja putri dengan status gizi kurang. Kata Kunci: IMT, Persentase lemak tubuh, usi amenarche, keteraturan siklus menstruasi THE ASSOCIATION BETWEEN BODY MASS INDEX, PERCENTAGE OF BODY FAT AND MENARCHE'S AGE AND THE REGULARITY OF MENSTRUATION CYCLE. (A study on state junior high school students of Hulu Gurung Regency, Kapuas Hulu, West Kalimantan) In developed countries, the improved nutritional status, which shown by increasing BMI and body fat percentage, is associated to a decrease in menarche's age to 12.8 years. In developing countries, such as Indonesia, the average BMI and body fat percentage amomg adolescent girls are lower and menarche's are older. Therefore, this study investigated whether this asssociation is also occur on adolescent girls who have marginal nutritional status. This explanatory study used a cross sectional approach. The study population was all schoolgirls at SMPN I Hulu Gurung, Kapuas Hulu, West Kalimantan. Fifty seven subjects were selected by a purposive sampling method through inclusion and exclusion criteria. Data were collected by interviews using structured questionnaires and anthropometric measurements (body weight and height). Body fat percentage were measured by Bio Impedance Analyzer. Data analysis were conducted by Pearson's correlation tests and chi square's tests. The result showed that 45.6% of the subjects had low BMI (<18,5). and 57,9% of the subjects had low percentage of body fat (<20%). The mean menarche's age was 12,3 years, with a minimum of 10.1 and a maximum 15,8 years. Most of the subject have irregular menstruation cycle. The subjects with higher BMI, had earlier menarche's age (r=-0.402 and p=0.02). The subjects who had higer body fat percentage, had earlier meanrche (r=-0.445 and p=0.001). There was a correlatin between category of BMI and the regularity of menstruation cycle (x2=5.284, p=0.022, contingency coefficient=0.291) and there was a correlation between category of body fat percentage and the regularity of the menstruation cycle (x2=6.193, p=0.013, contingency coefficient=0.313). In conclution the associations between BMI, body fat percentage and menarche's ago also exist in the population who have marginal nutritional status. Keyword : BMI, body fat percentage, menarche's age, regularity of menstruation cycles

Item Type:Thesis (Undergraduate)
Subjects:R Medicine > RA Public aspects of medicine > RA0421 Public health. Hygiene. Preventive Medicine
Divisions:Faculty of Public Health > Department of Public Health
ID Code:6949
Deposited By:admin FKM undip
Deposited On:18 Feb 2010 10:37
Last Modified:18 Feb 2010 10:37

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