Sensory Interactions for Head and Trunk Control in Space in Young and Older Adults During Normal and Narrow-Base Walking

I don't give a shit about the investigation. What was learned from here to make survivors lives better? That should be the function of any stroke research if we had any stroke leaders or strategy at all. But we have absolutely NOTHING. You're screwed, your children are screwed, your grandchildren are screwed.
http://journals.humankinetics.com/mc-current-issue/mc-volume-20-issue-1-january/sensory-interactions-for-head-and-trunk-control-in-space-in-young-and-older-adults-during-normal-and-narrow-base-walking 
Authors: Fang Zhang, Nandini Deshpande

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2016, 20, 21 – 32 http://dx.doi.org/10.1123/mc.2014-0046 15 young (20-30 years) and 15 older (>65 years) healthy participants were recruited to investigate age-related differences in the head and trunk control under suboptimal vestibular (GVS) and vision conditions during the normal and narrow-based walking (NB). Head roll velocity decreased in blurred vision condition and marginally increased with GVS in older but not in young. Head pitch increased, while head roll velocity decreased in NB. Trunk pitch, trunk pitch velocity and gait speed increased with GVS, while trunk pitch velocity and gait speed decreased in NB. Marginally increased head roll velocity in older people possibly suggests decreased integrative ability of the CNS in elderly. The changes in head control during NB may be an attempt to simplify the interpretation of the vestibular signal and increase otoliths sensitivity. The complexity of controlling trunk in M-L direction was suggested by different strategies used for trunk control in different conditions. Nothing on Trunk Impairment Scale. Why wasn't it used?