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 (VGRF1P)
and the second peak of the vertical GRF (VGRF2P); loading
rate (LR) and unloading rate (UR) as the slope of vertical GRF between initial
heel strike and the VGRF1P and between the VGRF2P
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 (TC) 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)