Project Abstract

Abstract
The aim of this research study was to investigate the effects of high-intensity interval training (HIIT) on cardiorespiratory fitness in sedentary individuals. Sedentary lifestyle is a major risk factor for various chronic diseases, including cardiovascular diseases, obesity, and diabetes. HIIT has gained popularity in recent years due to its time-efficient nature and promising results in improving fitness levels. The research was conducted over a period of 12 weeks, involving a sample of 50 sedentary individuals aged between 18-50 years. Chapter one of the study provided a comprehensive introduction to the research topic, including the background of the study, problem statement, objectives, limitations, scope, significance, structure of the research, and definition of terms. Chapter two presented a detailed literature review comprising 10 key studies related to HIIT and its effects on cardiorespiratory fitness in sedentary individuals. The literature review highlighted the potential benefits of HIIT in improving aerobic capacity, metabolic health, and overall fitness levels. Chapter three outlined the research methodology, including the study design, participant recruitment, intervention protocol, assessment methods, data collection procedures, and statistical analysis plan. The study employed a randomized controlled trial design, with participants assigned to either the HIIT group or the control group. The HIIT group completed three sessions per week of interval training, consisting of repeated bouts of high-intensity exercise alternated with periods of rest or low-intensity exercise. Chapter four presented a comprehensive discussion of the research findings, including the effects of HIIT on cardiorespiratory fitness parameters such as VO2 max, heart rate, blood pressure, and body composition. The results indicated significant improvements in aerobic capacity and cardiovascular health in the HIIT group compared to the control group. Furthermore, adherence to the HIIT program was found to be a key factor influencing the outcomes of the intervention. In conclusion, the research study demonstrated that HIIT is an effective and time-efficient exercise modality for improving cardiorespiratory fitness in sedentary individuals. The findings contribute to the existing body of knowledge on the benefits of HIIT and support its use as a viable strategy for promoting physical activity and health in sedentary populations. Future research should further explore the long-term effects of HIIT on various health outcomes and investigate optimal training protocols for different population groups.

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