A systematic review of the effect of physical exercise on cognition in stroke and traumatic brain injury patients

Well shit, once again the stupidity of a review that wouldn't be needed if we had publicly available stroke protocol databases updated each time new research comes out. Does no one in stroke have two functioning neurons to rub together?
http://search.naric.com/research/rehab/redesign_record.cfm?search=2&type=all&criteria=J76224&phrase=no&rec=133852&article_source=Rehab&international=0&international_language=&international_location=
NeuroRehabilitation , Volume 40(1) , Pgs. 33-48.

NARIC Accession Number: J76224.  What's this?
ISSN: 1053-8135.
Author(s): Vanderbeken, Ines; Kerckhofs, Eric.
Publication Year: 2017.
Number of Pages: 16.
Abstract: This literature review was conducted to determine whether physical exercise enhances cognition following traumatic brain injury (TBI) or stroke. Studies were identified through searches of PubMed, ScienceDirect and the reference lists of papers that were included for full-text evaluation. Medical subject headings from three concepts (brain injury, physical exercise, and cognition) were used to incorporate related search terms. All trials published in English that assessed cognition before and after an exercise intervention in human adults with TBI or stroke were included. Nine randomized and two non-randomized controlled trials (RCTs), as well as three single-group pre-post studies were included. Relevant data concerning the methods and results of the included studies were extracted. Methodological quality of the RCT’s was evaluated using the PEDro scale. Non-randomized trials were assessed using the Downs and Black checklist. The included trials were generally of medium methodological quality, though often plagued with issues of internal and external validity. The studies exhibited great heterogeneity, rendering a meta-analysis infeasible. Though well-designed studies are still needed, the preponderance of evidence suggests a positive effect of physical exercise on global cognitive functioning, especially in the chronic stages of a brain injury. Time after injury as well as the duration of the exercise program are mediating factors.