Abstract
Background:
Obesity is known to be a major risk factor for cardiovascular diseases. Peripheral Arterial Diseases, one of the components of cardiovascular triad, although has been linked with obesity, its correlation with Obesity alone is less studied upon. The present study is undertaken to analyse and compare the association between obesity, subtypes of obesity and peripheral arterial diseases by various anthropometric parameters and Ankle-Brachial index.

Aim:
The aim of the study was To establish an association of Obesity with Peripheral arterial diseases and to compare the relationship of Central obesity i.e., waist circumference and Sagittal abdominal diameter with the Ankle-Brachial index.

Methods:
A cross-sectional study was done on one hundred and sixty non-smoking adults in the age group of 25-45 years. Study group included age and gender matched subjects with waist circumference ≥ 90cm in males and ≥ 80cm in females and control group with waist circumference < 90cm in males and < 80cm in females. Height, Weight, WC, HC, SAD were measured and BMI, WHR were calculated. Ankle BP, Brachial BP was measured and ABI was calculated using Summit Hand Held Vascular Doppler. Statistical tools like t-test for comparing two groups and chi-square test for association are used.

Results:
Waist circumference as a parameter of obesity showed significant association with ABI. BMI showed a relationship of suggestive significance with ABI.

Conclusion:
Central obesity has significant association with low ABI. Waist circumference is a better indicator for central obesity than Sagittal Abdominal Diameter.

Key words: Hand held vascular doppler, ABI, Central obesity, Sagittal abdominal diameter