The interactive effects of exercise type and environment temperature on HSP72 in active females

The purpose of this study was to determine the effects of endurance and/ or weight training in normal and/ or moderate heat environments on heat shock protein (HSP72) response in active young females. Forty-five healthy active female (21±3 year, 61.4±10.2 kg, VO2max 37.2±5.3 mL/kg/min) were randomLy assigned into five groups; endurance training+normal heat (ET+NH), endurance training+moderate heat (ET+MH), weight training+normal heat (WT+NH), weight training+moderate heat (WT+MH) and heat group (HG). The training protocols include treadmill running to exhaustion on a treadmill at %65-75 V02max in the ET+NH and ET+MH groups and 4 sets of eccentric actions of elbow flexors (two sets with %50 and two sets with %60 1RM) in the WT+NH and WT+MH groups. Fasting blood samples were collected from non-dominant arm at three phases; consist of rest (baseline) and mid-test and 30 min after the training protocols. Endurance training and/ or weight training, in particularly, in the moderate heat ambient resulted in an increase in the HSP72, creatin kinase (CK) and cortisol values, as compared to ET+NH and WT+NH groups and the mid-test and baseline phases. However, the HSP72 and CK concentrations significantly increased in WT+ NH group, as compared to ET+NH group. Furthermore, WT+MH group showed significant increase in HSP72 levels, as compared to ET+ NH group. These findings suggest the muscle damage related to factors such as; exercise type, environment temperature and increase in exercise-induced body temperature.