Application of Computational Lower Extremity Model to Investigate Different Muscle Activities and Joint Force Patterns in Knee Osteoarthritis Patients during Walking

Figure 3

The predicted muscle forces of (a) quadriceps, (b) hamstring, (c) gastrocnemius, and (d) compressive forces and those in [12] during a gait cycle. Our results were averaged for 10 subjects in the asymptotic group, and the forces were normalized to each subject’s body weight (BW). The Pearson correlation coefficients and 𝑃 values were also provided.

(a) Quadriceps forces (𝑟=0.79;𝑃<0.001)

(b) Hamstring forces (𝑟=0.92;𝑃<0.001)

(c) Gastrocnemius forces (𝑟=0.93;𝑃<0.001)

(d) Joint compressive force (𝑟=0.86;𝑃<0.001)