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Journal : Jurnal Gizi

Indeks Massa Tubuh Menurut Umur sebagai Indikator Persen Lemak Tubuh pada Remaja rosidi, ali
Jurnal Gizi Vol 7, No 2 (2018): Jurnal Gizi UNIMUS
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1330.181 KB) | DOI: 10.26714/jg.7.2.2018.%p

Abstract

Health impact which caused by overnutrition is related to excess in body fat. Thus, nutritional status monitoring in adolescent is crucial because the prevelance of overnutrition in adolescent increased per years. Body Mass Index per age (BMI/A) is easy, simple, and generally used to determine nutritional status, but incapable to measure overnutrition related excess body fat precisely. Body fat percentage is used to determine overnutrition but special equipment and capability are required. The purpose of the study are to analyze correlation between BMI/A and body fat percentage and verify BMI/A’s sensitivity-specificity as body fat percentage’s indicator. In this cross sectional study, 82 adolescents from SMAN 47 Jakarta are chosen to participate by simple random sampling. Anthropometric instrument that used are microtoise, spring scales, and bioelectrical impedance analysis (BIA). There is a significant correlation with a strong value between BMI/A and percent body fat (r=0,814; p=0,000). BMI/A as percent body fat’s indicator has low sensitivity and high specificity (Se= 55,17%; Sp= 94,34%). Eventhough there is strong correlation, BMI/A is less sensitive as percent body fat’s indicator to determine nutritional status in adolescent, thus body fat measurement is needed to validate value of BMI/A measurement. 
PENGETAHUAN DAN SIKAP MAHASISWA DALAM KEPUTUSAN PEMBELIAN PRODUK HALAL rosidi, ali
Jurnal Gizi Vol 7, No 2 (2018): Jurnal Gizi UNIMUS
Publisher : Universitas Muhammadiyah Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1330.181 KB) | DOI: 10.26714/jg.7.2.2018.%p

Abstract

Consumers must be more critical in making decisions before buying food products. This study aims to determine the relationship between knowledge with student attitudes in purchasing decisions for halal products. The population of this study were the students of Muhammadiyah University of Semarang. The variables that studied were the level of knowledge of halal food and the attitude of decisions for buying halal products. This type of research was observational with a cross sectional design. The tool that used were questionnaires and data analysis by using two stages, namely univariate and bivariate (Simple Linear Regression). The results of the study revealed that the student's knowledge of halal food was the most moderate category at 40.2% and positive positive attitude was 53.6%. Based on statistical tests, it can be concluded that there is a relationship between knowledge and attitude in buying halal products.