Effects of altered sagittal trunk orientation on kinetic pattern in able-bodied walking on uneven ground

Data-set collected from 12 participants contains:the first peak of the vertical GRF (VGRF<i>_1P</i>) and the second peak of the vertical GRF (VGRF<i>_2P</i>); loading rate (LR) and unloading rate (UR) as the slope of vertical GRF between initial heel strike and the VGRF<i>_1P</i> and between the VGRF<i>_2P</i> and toe-off, respectively; vertical impulse (VIMP) by integrating the vertical GRF, braking impulse (BIMP) and propulsive impulse (PIMP) by integrating the anterior–posterior GRF over the time that the force was oriented in the posterior and anterior directions, respectively, and normalized to the product of body weight and the square root of the quotient of leg length and gravity (Hof 1996); contact time (T<i>_C</i>) as the time duration between the initial heel strike and toe-off; gait velocity as mean of horizontal velocity of the L5 marker between the initial heel strike and toe-off. For kinetic analysis, GRF was normalized to participant body weight (BW). A vertical GRF threshold of 0.03 BW was used to determine the instants of the initial heel strike and the toe-off at each step. Note:1- 0 in dataset denotes NaN.2- Posture (1, regular upright posture; 2, with 30°; 3, 50°; 4, maximal sagittal trunk flexion (70°) ) .3- Step (11, 1st step; 22, 2nd step; 33, 3rd step).4- Setup (111, level walking; 222, uneven walking)