Figure 4.

(A–G) Moment arms around knee for biceps femoris (short head), biceps femoris (long head), gastrocnemius (medial head), gastrocnemius (lateral head), semimembranosus, semitendinosus, and vastus lateralis. Data from this study (Goh), eastern lowland gorilla (Gm) and western lowland gorilla (Gj) of Payne et al. (2006b). MA/femur refers to MA divided by femur length to account for differences in body size. Y‐axis: flexor moment is negative, extensor is positive. X‐axis: zero is a fully extended knee, increasing values indicate increasing degrees of flexion.