Isokinetic measurement analyses of SSc patients. This figure illustrates the study and control groups’ initial and final muscle strength changes. Isokinetic measurements were performed at 60° per second (°/second) and 180°/second for knee flexion and extension. The parameters measured include PT/BW and AP/BW for both left and right legs. Nm: newton per meter; W: Watts; ext: extension; flex: flexion