The researchers found that during stair ascent the DPN group showed significantly
higher maximum CoM - CoP separation of 13 cm, compared to 10 cm for both the diabetes patients without DPN and the control group; and also significantly increased variation in CoM - CoP separation: 7 cm for the DPN group, 5 cm for the diabetes only group, and 6 cm for the control group.
During stair descent differences were also evident: the DPN group again showed significantly
higher maximum CoM - CoP separation, a mean of 15 cm versus 13 cm for diabetes patients without DPN and 12 cm for controls.