Fig. 1
![Fig. 1](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13102-015-0011-z/MediaObjects/13102_2015_11_Fig1_HTML.gif)
Flow chart of experimental procedures and exercise prescription for each of the two exercise training groups. HR, heart rate; HRR, heart rate reserve; VT1, first ventilatory threshold; VT2, second ventilatory threshold
Flow chart of experimental procedures and exercise prescription for each of the two exercise training groups. HR, heart rate; HRR, heart rate reserve; VT1, first ventilatory threshold; VT2, second ventilatory threshold