AEROBIC FITNESS AND AMPLITUDE OF THE EXERCISE INTENSITY DOMAINS DURING CYCLING

作者：Correa Carita Renato Aparecido; Caputo Fabrizio; Greco Camila Coelho; Denadai Benedito Sergio^*

来源：Revista Brasileira de Medicina do Esporte, 2013, 19(4): 271-274.

• anaerobic threshold
• oxygen consumption
• aerobic exercise

Introduction: The determination of the exercise intensity domains has important implications for the aerobic training prescription and elaboration of experimental designs. Objective: The aim of this study was to analyze the effects of aerobic fitness level on the amplitude of the exercise intensity domains during cycling. Methods: Twelve cyclists (CYC), eleven runners (RUN) and eight untrained subjects (NT) underwent the following protocols on different days: 1) progressive test to determine lactate threshold (LT), maximal oxygen uptake (VO2max) and its corresponding intensity (IVO2max); 2) three constant workload tests until exhaustion at 95, 100 and 110% IVO2max to determine critical power (CP); 3) constant workload tests until exhaustion to determine the highest intensity at which VO2max is reached (I-sup). Results: The amplitude of the moderate domain was similar between CYC (52 +/- 8%) and RUN (47 +/- 4%) and significantly greater in CYC when compared with NT (41 +/- 7%). The heavy domain was significantly smaller in CYC (17 +/- 6%) when compared with RUN (27 +/- 6%) and NT (27 +/- 9%). In relation to severe domain, there were no significant differences among CYC (31 +/- 7%), RUN (26 +/- 5%) and NT (31 +/- 7%). Conclusion: It can be concluded that the heavy domain is more sensitive to changes determined by the aerobic fitness level; there is a need hence to observe the training specificity, when high level of physiological adaptation is aimed.

• 出版日期2013-8