Journal of AdvancedMedical and Dental Sciences Research

Background: Many factors have been found to affect a person’s weight, including lifestyle choices like nutritional behaviour and physical activity, as well as genetics, environmental and endocrinal factors.The present study was conducted to assess correlation of thyroid function with physical parameters. Materials & Methods: 124subjects of both genders were included. Body weight, Height and BMI was calculated and thyroid hormone profile (S. TSH, Total S. T3, and Total S. T4) was estimated by lumax chemiluminescence immunoassay strip reader. Results: The mean age was 35.4 years in normal and 36.7 years in obese subjects. The mean weight was 54.2 kgs in normal and 68.5 kgs in obese subjects. The mean height was 160.2 cm in normal and 163.1 cm in obese subjects and mean BMI was 21.3 Kg/m2 in normal and 26.9 Kg/m2 in obese subjects. The mean T3 (ng/dl) level in normal subjects was 108.3 and obese was 94.5, T4 (µg/dl) level was 8.9 in normal and 7.2 in obese and TSH (mIU/L) level was 2.31 in normal and 3.74 in obese subjects. The difference was significant (P< 0.05).TSH shows significant positive correlation with age, weight, BMI and BF percentage. T3 shows significant negative correlation with age, weight, and BMI and BF percentage and T4 shows significant negative correlation with weight and BMI. Conclusion: The physical parameters play an important role to determine the thyroid function, as thyroid hormone play an important role in metabolism of almost all the cell of the body.