Figure 8. Position of knee joint in non-obese gait (left) and obese gait (right). Decreasing values represent forward (horizontal, blue) and downward (vertical, pink) movement.
Joint position. The displacement of the knee for non-obese and obese gait showed very slight deviations. The horizontal component for non-obese gait was 1.08 meters and 1.05 for the obese gait. The vertical displacement for the non-obese gait was .02 meters and .03 for the obese gait.
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Figure 8. Position of knee joint in non-obese gait (left) and obese gait (right). Decreasing values represent forward (horizontal, blue) and downward (vertical, pink) movement. | |
Joint velocity. Knee velocity for non-obese gait and obese gait was similar. The maximum upward for non-obese gait was .4 m/s and for the obese gait was .45 m/s. The maximum backward velocity for non-obese gait was -2.2 m/s and for obese gait was -2.2 m/s.
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Figure 9. Velocity of the knee joint in non-obese gait cycle (left) and obese gait cycle (right). Positive values represent backward (horizontal, blue) and upward (vertical, pink) movement. | |
Center of mass. The center of mass was calculated using the trunk, thigh, and shank. In both the non-obese and obese gait it was calculated during heel strike. The center of mass for the non-obese gait was anterior and superior to the hip joint, while the center of mass was anterior and superior to the hip joint for the obese gait.
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Figure 10. Location of the center of mass (COM) in the non-obese gait cycle (left) and the obese gait cycle (right). Body segments shown are trunk, thigh, and shank. | |
