Diaphragm thickness and physical performance in regular smokers and non-smokers: A pilot study.

Background: Despite the understanding of the role of diaphragm role as a crucial element in trunk stabilizer performance, limited research has been carried out on the diaphragmatic features particularly in smoking population.

Objectives: It was aimed to compare the diaphragm structure beside trunk stabilizer performance & body balance of young regular smokers and non-smokers and investigate the relationship between diaphragmatic features and physical performance in regular smokers.

Methods: Asymptomatic regular smoker (n = 22) and nonsmoker (n = 22) young male subjects (21.