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Kata kunci: Persen lemak tubuh, bia, overweight, remaja, imt/u
Accurate instruments to measure percent body fat are expensive and haved ifficult procedures, so another alternative to measure percent body fat are Needed. This study aims to obtain the most accurate anthropometric measurement in evaluating overweight with bia as a golden standard. This study was conducted in april-may 2017 and the respondents are adolescent in senior high school student of al-azhar 3 jakarta (14-17 years old) with a total number of respondents were 107 boys and 71 girls. This study is a cross sectional design. The results showed that bmi/age had the highest coefficient correlation value in both sexes (r=0,88). In addition, bmi/age also had the best validity in detecting overweight in both sexes, with a cut-off points +0,77 sd (se:86,6%; sp:85,0%; Ppv:89%; npv: 81%; lr+:5,77; lr-:0,16) in boys and +0,09 sd (se:93,1%; Sp:95,0%; ppv:95%; npv:96%; lr+:13,80; lr-:0,05) in girls.
Keywords: Percent body fat, bia, overweight, adolescent, bmi/age
Kata kunci : Antropometri, Bioelectrical Impedance Analysis (BIA), Gizi lebih, IMT/U, Persen lemak tubuh n
Accurate measurement of body fat percentage as Dual-energy X-ray Absorptiometry (DXA), hydrostatic weighing, Magnetic Resonance Imaging (MRI), ultrasound, and Bioelectrical Impedance Analysis (BIA) is expensive and difficult to used by society. Anthropometric measurement is more simple and easy to use for evaluation of nutritional status. This study aims to obtaine an accurate anthropometric measurement to determine overnutrition with BIA as a golden standard. This study is a validation study conducted on elementary school children grades 4 and 5 (9-11 years old) in Elementary School Nurul Fikri Depok. The results showed that the BMI for age has the highest correlation coefficient (r=0.934) compared with other measurements. In addition, BMI for age also has the best validity (AUC 0.849; Se 82.69%; Sp 69.84%; 69.35% PPV; NPV 83.02%; LR + 2.7; LR- 0.2) with a cut-off +0.5 SD.
Keywords: Anthropometry, Bioelectrical Impedance Analysis (BIA), BMI for age, overnutrition, percentage body fat
kata kunci: hipertensi, tekanan darah, imt, lingkar pinggang, rlpt, roc, sensitivitas, spesifisitas, cut-off point.
KATA KUNCI: TEKANAN DARAH, PREHIPERTENSI, IMT, REMAJA.
BLOOD PRESSURE MEASUREMENT BECOMES VERY IMPORTANT, BECAUSE MANY CASES ARE NOT DETECTED SO THAT THE BLOOD PRESSURE MEASUREMENT ROUTINELY. PRE-HYPERTENSIVE CASES IN ADOLESCENTS ARE QUITE HIGH BASED ON THE RESULTS OF RISKESDAS IN 2013 OF 5.3%. AN ACCURATE AND EASY REPLACEMENT MEASUREMENT IS NEEDED INSTEAD OF A BLOOD PRESSURE MEASURING DEVICE. THE PURPOSE OF THIS RESEARCH IS TO KNOW THE SIZE OF THE SUBSTITUTION THAT HAS THE CORRELATION AND THE OPTIMAL VALIDITY TO DETECT PRE HYPERTENSION CASES IN THE ISLAMIC HIGH SCHOOL STUDENTS OF AL-AZHAR 3 JAKARTA ALONG WITH ITS CUT-OFF POINT. THE RESEARCH DESIGN WAS CROSS SECTIONAL WITH STRATIFIED RANDOM SAMPLING METHOD. THE STUDY WAS CONDUCTED ON 180 STUDENTS AND STUDENTS OF CLASS X AND XI CONSISTING OF 109 MEN AND 71 WOMEN. THE IMT CONCLUSION BY AGE HAS BEEN THE BEST ANTHROPOMETRIC REPLACEMENT MEASURE FOR PREDICTING PREHYPERTENSION IN ADOLESCENT ADOLESCENTS WITH CUT OFF POINTS THAT CAN BE USED IE 0.880 SD FOR MALE ADOLESCENTS AND 0.325 SD FOR WOMEN.
KEYWORDS: BLOOD PRESSURE, PREHYPERTENSION, IMT, ADOLESCENTS.
Prehypertension among adolescenses plays important role on raising the risk of hypertension among adults. The purpose of this study is to know the related and dominant factors of prehypertension among 14-17 years old adolescence in SMA Al-Azhar 3 Jakarta based on sex, family history of hypertension, nutritional status (BMI), physical activiy, sodium intake, and sleep duration, and smoking habit. This study used cross-sectional design. Total of 142 respondents from grade X and XI were included in this study. Instruments used are questionnaires, mercury sfigmomanometer, stethoscope, digital scales, and microtoice The result of study shows that prehypertension prevalence is 40.8%. There is significant correlation in sex, family history of hypertension, nutritional status (BMI), sodium intake, and sleep duration. Nutritional status (BMI), especially overweight, is the dominant factor of prehypertension with odds rasio of 5.998. It is suggested to measure other variables that have not been measured in similiar research. Keywords : Prehypertension, nutritional status, physical activity, sleep duration, sodium intake, adolescence
Tesis ini merupakan penelitian cross sectional yang bertujuan membuat model prediksi persen lemak tubuh untuk remaja laki-laki usia 12-19 tahun (n = 111), dengan melakukan studi validasi pengukuran antropometri dan model Prediksi (Slaughter, Deurenberg, Lee dan Chan) terhadap persen lemak tubuh BIA. Pada penelitian ini juga menjelaskan korelasi antara pengukuran antropometri (IMT WHO, skinfold thickness dan lingkar pinggang) serta model prediksi (Slaughter, Deurenberg, Lee dan Chan) dengan persen lemak tubuh BIA. Pengambilan sampel dilakukan dengan teknik stratified proportional. Penelitian ini dilakukan pada siswa MTs dan MA. Multiteknik Yayasan Asih Putera kelas 7-12.
Hasil penelitian menunjukkan IMT WHO memiliki korelasi paling kuat dengan persen lemak tubuh BIA (r = 0,804) diantara pengukuran antropometri yang digunakan. Model Prediksi IMT WHO memilki sensitivitas paling tinggi yaitu 94%, diikuti dengan model prediksi IMT WHO dan umur (94%) dan model prediksi Sitoayu. Seluruh variabel memiliki korelasi yang signifikan dengan persen lemak tubuh BIA (p < 0,0005). Hasil analisis multiregresi menunjukkan variabel yang dominan adalah IMT WHO, skinfold thickness, dan umur dengan model prediksi persen lemak tubuh baru (Sitoayu) = 23,28 + 1,56*IMT WHO + 0,13*ST - 0,62*U. Model prediksi ini memiliki AUC 0,937 dan nilai sensitivitas yaitu 84%.
The primary purpose of this cross-sectional study to develop percentage body fat prediction model for boys aged 12-19 years (n = 111), by conducting a validation study anthropometric measurements and predictions model of body fat percentage (Slaughter, Deurenberg, Lee and Chan) to percent body fat BIA. In this study also examined the correlation between anthropometric measurements (WHO BMI, skinfold thickness and waist circumference) and predictions model (Slaughter, Deurenberg, Lee and Chan) with percent body fat BIA with stratified proportional design. The research was carried out on students MTs and MA. Multiteknik Yayasan Asih Putera grade 7-12.
Bivariat analysis showed BMI WHO has the strongest correlation with percent body fat BIA (r = 0.804) between the anthropometric measurements were used. The Prediction model IMT WHO also has the best sensitivity (94%), the second is IMT WHO and Age (94%) and the third is Sitoayu. All variables have a significant correlation with percent body fat BIA (p < 0,0005). Multiregresi analysis results indicate that the dominant variable is the WHO BMI, skinfold thickness and age with the predictions model of percent body fat Sitoayu = 23,28 + 1.56 *BMI WHO + 0.13 * ST - 0.62 *Age. This prediction model has AUC 0,937 and the best sensitivity value of 84%.
