 The investigators will do an intervention on four groups of previously sedentary post-menopausal women which consists: group 1 - 30 minutes per day of physical protocol; group 2 - 50 minutes per day of physical protocol; group 3 - 70 minutes per day of physical protocol; group 4 - sedentary control women. The protocol consists of three sessions per week of concurrent training half session with aerobic training and the other part with weight training. Inflammatory and oxidative parameters will be analyzed and the investigators hypothesized that 90 minutes per week of concurrent training group 1 will reduce the inflammatory parameters and the oxidative stress, and this improvements will be greater so much as the longer the sessions a dose-response effect. The physical activity practiced out of the intervention will be controlled by a questionnaire the commuting and leisure sections of the International Physical Activity Questionnaire and the food intake by a 24-hour food recall. 