摘要：Freitas LAG, Ferreira SS, Freitas RQ, Januário RSB, Alves RC, Silva AC, Follador L, Garcia EDSA, Da Silva SG. Effect of SelfSelected and Imposed-Intensity Walking Programs on Fat Oxidation in Obese Women. JEPonline 2015;18(1):62-69. The purpose of this study was to investigate the effect of a walking program at selfselected or an imposed intensity on maximal fat oxidation (Fatmax) in obese women. The study included 12 obese female volunteers (mean age 44.3 ± 8.3 yrs) who were randomly divided into two groups: selfselected or imposed intensity. A test until exhaustion was performed to determine maximal oxygen uptake (VO2 max), ventilatory threshold, and Fatmax before and after intervention. The study duration was 12 wks with three exercise sessions per week on nonconsecutive days. There was no difference in Fatmax between the groups in the preintervention test. Only the self-selected intensity group showed a significant increase in Fatmax between the pre- and post-intervention testing. However, the VO2 at Fatmax was similar in both groups in the post-intervention test. Thus, while the self-selected training program induced changes in Fatmax, VO2 at Fatmax was similar in both groups. This latter finding suggests that the changes arising from the different training programs appear to be related more to the VO2 at Fatmax than the percentage of VO2 max.
