Abstract
Objective: Obesity is a serious problem for public health and an important risk factor for many diseases, especially respiratory problems, which has an inverse relationship with the maximum oxygen consumption (VO2 max)
research methodology:
This study is a semi-experimental type and the statistical population of the present study included the male students of Mohaghegh Ardabili University in the academic year of 2014-2016. Of these, 28 inactive young people were selected as research subjects in one group. The cardio-respiratory fitness of the subjects was measured using the aerobic aerobic test with an intensity of 75-85% of the maximum heart rate. Cardio-respiratory indices were measured by a respiratory gas analysis device.
Findings: The findings of this research showed that a training session is beneficial in the values of cardiac and respiratory indicators, (heart rate (RR), maximum oxygen ventilation equivalent (EQO2), carbon dioxide ventilation equivalent (EQCO2), tidal volume (VT) and pulmonary ventilation (VE)) expiratory carbon dioxide partial pressure (PETCO2), expiratory oxygen partial pressure (PETO2)) during different pre-activity stages, aerobic threshold, active rest and anaerobic threshold, there is a significant difference (≥0.05) P).
Conclusion: The decrease in cardiac and respiratory endurance is due to the lack of exercise and inactivity. It turned out that obesity and overweight have a negative effect on lung function. In general, the deposition of fat in the abdominal wall and chest of obese people causes limitations in pulmonary indices. The accumulation of fat tissue gradually reduces the elasticity of the respiratory muscles and the compliance of the ribcage and increases the respiratory work and energy consumption for ventilation, so it is recommended to perform exercises related to the desired factor to strengthen and increase the capacity of the cardiorespiratory system