Comparison of Effectiveness of Body Mass Index and BioelectricalImpedance Methods in Assessment of Obesity

Year 2014, Issue: 28, 67 - 86, 30.12.2014

Yener Bektaş Timur Gültekin Galip Akın Sibel Önal

https://doi.org/10.1501/antro_0000000303

Cited By: 1

Abstract

Objective: Obesity is a common public health problem in both developed and developing countries nowadays. Due to health risks associated with obesity, easy, precise, reliable, cost-effective, and broadly applicable methods are necessary for its assessment in population based studies and in clinical practice. The purpose of this study was to determine the prevalence of obesity in university students according to the international standards of body mass index and body fat percentage obtained by bioelectrical impedance and to compare these two different methods for defining obesity. Material and Methods: A cross-sectional study was carried out among 400 undergraduate students from Ankara University, Ankara, the capital of Turkey. Body height was measured with a portable stadiometer (Holtain Ltd. Harpenden). Body weight, body fat mass, body fat percent, fat free mass and total body water were obtained using BIA method by Tanita BC-418 MA (Tanita Corporation of America, Inc., Arlington Heights, IL). Results: Mean body fat percent assessed by bioelectrical impedance was 25.3 ± 7.2% in women and 15.99 ± 5.6% in men. This study demonstrated a lower prevalence of overweight and obesity in university students compared with Turkish general population. Our observation has also established that there is significant correlation between body fat and body mass index in both sexes (p=0.000). Furthermore, this correlation was greater in women compared with men. Conclusion: Our results show that bioelectrical impedance is more useful than body mass index in assessment of obesity in population based studies. Key words: Obesity; Bioelectrical impedance; Body mass index

Keywords

Obesity, Bioelectrical impedance, Body mass index

Obezitenin Değerlendirilmesinde Beden Kütle İndeksi ve Biyoelektrik Empedans Metotlarının Etkinliğinin Karşılaştırılması

Abstract

Amaç: Obezite günümüzde hem gelişmiş hem de gelişmekte olan ülkelerde karşımıza çıkan önemli bir halk sağlığı problemidir. Obezitenin sağlık riskleri ile yakından ilişkili olması, geniş örneklem gruplarında ve klinik uygulamalarda uygulaması kolay, güvenilir, düşük maliyetli tanı metotlarının gerekliliğine işaret etmektedir. Bu bağlamda araştırmamızda populasyon çalışmalarında kullanımı sıklıkla tercih edilen beden kütle indeksi ve biyoelektrik empedans metotları yardımı ile obezite prevelansının belirlenmesi ve bu iki metodun hassasiyetlerinin karşılaştırılması amaçlanmaktadır. Gereç ve Yöntemler: Araştırma kapsamında Ankara Üniversitesi Dil ve Tarih-Coğrafya Fakültesi'nin farklı bölümlerinde öğrenimini sürdüren 400 lisans öğrencisinden kesitsel yöntem ile ağırlık, boy ve vücut kompozisyonu değişkenlerine ait veriler toplanmıştır. Boy uzunluğu ölçümünde taşınabilir stadiyometre (Holtain Ltd. Harpenden), ağırlık, yağ kütlesi, vücut yağ yüzdesi, yağsız vücut kütlesi ve total vücut suyu değişkenlerinin ölçümünde ise Tanita BC-418 MA (50Hz) model vücut analizatörü (Tanita Corporation of America, Inc., Arlington Heights, IL) kullanılmıştır. Bulgular: Biyoelektrik empedans yöntemi ile elde edilen vücut yağ yüzdesi ortalama değerleri kadınlarda %25.3+7.2, erkeklerde %15.99+5.6 olarak tespit edilmiştir. Üniversite öğrencilerinden elde edilen obezite prevelansı değerlerinin ülkemiz genel populasyonu değerlerinden daha düşük olduğu görülmektedir. Her iki cinsiyette de yağ kütlesi ve beden kütle indeksi arasında güçlü korelasyonların olduğu belirlenmiştir (p=0.000). Ek olarak bu korelasyonlar kadınlarda erkeklere göre daha yüksektir. Sonuç: Populasyon çalışmalarında obezitenin değerlendirilmesinde beden kütle indeksine göre biyoelektrik empedans metodunun kullanılmasının daha uygun olduğu görülmektedir

Keywords

Obezite, Biyoelektrik Empedans, Beden Kütle İndeksi

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