The following parameters were measured at baseline and @ weeks later : ( @ ) for evaluation of physical fitness : VO@max , muscular endurance , joint mobility and body fat ; ( @ ) for evaluation of the lipidemic profile : triglyceride , total cholesterol , HDL and LDL levels , and ( @ ) levels of hormones associated with lactation : prolactin , estradiol , cortisol , TSH , fT@ and fT@ .