SHIBAURA INSTITUTE OF TECHNOLOGY IMAGE: STIFF JOINT OFTEN RESULTS FROM LOWERED JOINT FLEXIBILITY AND CAN PRESENT A SERIOUS PROBLEM FOR ATHLETES. IN A NEW STUDY, RESEARCHERS FROM JAPAN INVESTIGATE THE ASSOCIATION BETWEEN TRICEPS SURAE MUSCLE STIFFNESS AND PASSIVE ANKLE JOINT STIFFNESS IN HUMAN LIMBS, UNCOVERING IMPORTANT INSIGHTS THAT COULD HELP DEVELOP EFFECTIVE EXERCISES FOR MITIGATING...