<b>Posture-induced modulation of lower-limb joint powers in perturbed running</b>

Data prepared for two-way repeated measures ANOVA to examine the main and interaction effects of Step (level-step and drop-step) and Posture (TI¯, TI0, TI+, and TI++) on the total limb and joints negative and positive powers.
Abbreviations:
Abs: absorption or negative work; Gen: generation or positive work.

Level-step:
1: TI0, self-selected trunk inclination; 2: TI+, low forward trunk inclination; 3: TI¯, backward trunk inclination; 4: TI++, high forward trunk inclination.
Drop-step:
5: TI0, self-selected trunk inclination; 6: TI+, low forward trunk inclination; 7: TI¯, backward trunk inclination; 8: TI++, high forward trunk inclination.
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avrg_Hip_Pow_Nrm + avrg_Knee_Pow_Nrm + avrg_Ankle_Pow_Nrm
array structure: 100 x 8 x 12 x 2 =>
100
8
12
2

1:4 (Level-step)
5:8 (drop-step)

Normalized joint power
Posture order:
1:4=> TI0, TI+, TI¯ and TI++
5:8=> TI0, TI+, TI¯ and TI++
Participants
1: Left limb
2: right limb*
* for this study we only analyzed the right limb data (2nd contact). The experimental setup involved 2 force plates where participants instructed to step onto the 1st force plate with the left foot. We lowered the 2nd force plate by 10cm to simulate the drop-step.