فاطمه سنایی

  In the present era, sedentary lifestyle is considered as one of the public health challenges and one of the main causes of mortality worldwide, which has a detrimental effect on the metabolic and cardiorespiratory systems. Continuous physical inactivity, one of the factors of which is lack of time, reduces oxygenation capacity and inability to regulate blood gases in a balanced manner, which can gradually lead to the occurrence of non-communicable diseases and increase the risk of mortality in different societies. Therefore, the present study seeks to find training methods with efficient timing to replace moderate-intensity continuous training (MICT) that can improve cardiorespiratory function and metabolic profiles. Therefore, the aim of the present study was to investigate and compare the effect of a single bout of Tabata activity (TABATA) and moderate-intensity continuous training (MICT) on respiratory gas analysis in active girls in order to clarify the effect of these exercises on respiratory and metabolic parameters and highlight the importance of respiratory gases in assessing general health. Methodology. For this purpose, ۱۵ active girls (۲۳.۳۳ ± ۵.۹ years) were voluntarily selected and divided into two TABATA and MICT sessions. Initially, the subjects were given a VO۲max test and then, according to the results, in the following sessions, they were randomly assigned to perform Tabata (۸ ۲۰-second intervals with ۱۰ seconds of inactive rest at ۱۲۰% of power) and continuous moderate-intensity activity (۳۰ minutes of moderate-intensity activity at ۵۰% of power) in a single and cross-over manner. Data before, immediately after, and ۱۵ minutes after the activity were calculated with dependent variables including heart rate, systolic blood pressure, diastolic blood pressure, carbohydrate oxidation, fat oxidation, maximum energy expenditure (EE), respiratory exchange ratio (RER), and maximum oxygen consumption after the activity. After determining the normality of the data, inferential statistics of analysis of variance with repeated measures were used to analyze the data. Results. Significant increase in RER in Tabata activity compared to continuous moderate intensity activity (p<۰.۰۵), significant change in EPOC in Tabata activity compared to continuous moderate intensity activity (p<۰.۰۵), significant change in carbohydrate oxidation in Tabata activity compared to continuous moderate intensity activity (p<۰.۰۵), significant change in systolic blood pressure in Tabata activity compared to continuous moderate intensity activity (p<۰.۰۵). Conclusion. The present study shows that the Tabata protocol can be considered as an efficient alternative to traditional moderate intensity training in athletes' training programs and youth lifestyle modification programs.