Biochemical and Physiological Responses in Sedentary Subjects During the Evaluation of Maximum Oxygen Uptake

Introduction: The use of incremental exercise tests (IET) to evaluate the individual’s acute responses is an essential tool in Physical Activity Science.
 Objective: This paper aims analyze behavior between biochemical and physiological variables as aerobic-anaerobic transition indicators during two tests, which measure maximum oxygen uptake healthy subjects.
 Methodology: sample consisted individuals, who were thirty-three twenty-five years old, respectively. During execution following materials tools used: a portable glucometer, lactometer, reactive tapes, treadmill, stationary Cycle Ergometer Monark®, heart rate monitor Polar®, gas analyzer, software Breeze®, computer, for recording data, pencil.
 Results: high inverse correlation Glycemic index VO2 (r: -0,853) CO2 -0,851) are notable. Moreover, detection thresholds each subject through blood lactate invasive non-invasive methods, such (HR), also shown.
 Conclusion: A clear explanation Respiratory Quotient (RQ) given Cycle-ergometer test, concluding that this type protocol safe group under study validity results accordance with theoretical expectations.