Fig. 2From: Relationship between lateral differences in the cross-sectional area of the psoas muscle and curve running timeTypical cross-sectional magnetic resonance images of the psoas major muscle outlined at the L3–L4, L4–L5, and L5–S1 levels (L: lumbar spine, S: sacral spine), and those of the thigh muscles at the proximal 30, 50, and 70 % of the femur lengthBack to article page