Effects of Progressive Walking and Stair-Climbing Training Program on Muscle Size and Strength of the Lower Body in Untrained Older Adults

Figure 1. Changes in muscle thickness of the lower limbs in both groups. Data are presented as mean ± standard deviation. (A) AT; anterior aspect of the thigh, (B) PT; posterior aspect of the thigh, (C) AL; anterior aspect of the lower leg, (D) PL; posterior aspect of the lower leg.