Effects of Forward Head Posture and Body Mass Index on Respiratory Function

Purpose: This study aimed to determine the correlation between body mass index (BMI), forward head posture, and respiratory function factors of college students in their 20s. Methods: Twenty-five adults in their 20s were recruited, and their forward head posture, BMI, and respiratory function were evaluated. The mean and standard deviation of the measured values for each variable were calculated, and Pearson’s correlation was used to determine the relationship between BMI, forward head posture, and respiratory function. Results: CVA showed a significant correlation with forced vital capacity (FVC) and forced expiratory volume in 1 s (FEV1), and FHD showed a significant correlation with FEV1/FVC (p<.05). BMI showed a significant correlation with FVC and FEV1 (p<.05). Conclusion: Head posture and BMI were correlated with respiratory function in adults in their 20 s. Therefore, posture and BMI management is necessary to improve respiratory function.