Fig. 7. Relative effort (%) of vertical, braking and propulsive impulses exerted by fore- and hindlimbs. Absolute values of total impulse (forelimb + hindlimb) are indicated to the right. Because the total propulsive impulse on the decline was extremely low, percent limb effort was not calculated. These percentages were calculated for illustrative purposes; because they were calculated from the mean vertical, braking and propulsive impulses for each substrate slope, testing for significant difference among groups was not possible. BW, body weight.