The role of the Aerobic Interval Exercise Training on the Lung Function Profilein Adolescent Girls With Different Body Composition Index

Obesity and a sedentary lifestyle factors related to pulmonary function andcardiorespiratory requirements (CRF). This study was to determine the effect of regular aerobic trainingon cardiac and respiratory function in adolescent girls with different body mass index.

In the present quasi-experiments (QEs) study, which was conducted with pre-test and post-testdesign, 45 female students in the age range of 13 to 18 years old were selected and added to 3 groups of15 people with normal, overweight and obese body mass index. The training protocol included 10 weeksof aerobic training, 3 sessions per week and each exercise session for 20-45 minutes of. Pulmonary functionwas measured by spirogram and Maximal oxygen uptake (VO2max) by modified treadmill bulk test.

There were significant differences in Forced Vital Capacity (FVC), Forced Expiration Volume in oneSecond (FEV1), Peak Expiratory Flow (PEF), FEV1/FVC and VO2max in groups with normal body mass index,overweight and obese (P<0.001). After the training period, a significant improvement was observedin spirometry indices (FVC, FEV1, PEF, FEV1/VC) and VO2max compared to the pre-test (P <0.001), but stillsignificantly lower than the post-test values in the was normal group. Also significant decreased wasobserved in Body Mass Index (BMI) in obese and overweight groups (P<0.001).

The results of the present study showed that obesity is one of the effective factors in reducingpulmonary function and aerobic exercise improves pulmonary function and cardiorespiratory endurancein adolescent girls with different body mass index.