Evaluation of measurements of propulsion used to reflect changes in walking speed in individuals poststroke

I got absolutely nothing out of this. No clue what propulsion means in this context. 
https://search.naric.com/research/rehab/redesign_record.cfm?search=2&type=all&criteria=J78529&phrase=no&rec=136619&article_source=Rehab&international=0&international_language=&international_location=
Jopurnal of Biomechanics , Volume 49(16) , Pgs. 4107-4112.

NARIC Accession Number: J78529.  What's this?
ISSN: 0021-9290.
Author(s): Hsiao, HaoYuan; Zabielski Jr., Thomas M.; Palmer, Jacqueline A.; Higginson, Jill S.; Binder-Macleod, Stuart A..
Project Number: 90AR5028.
Publication Year: 2016.
Number of Pages: 6.
Abstract: Study examined the relationships between walking speed and different measurements of propulsion in individuals poststroke. The primary purposes of this study were to determine which measurement of propulsion (1) is most closely related to their self-selected walking speeds and (2) best reflects changes in walking speed within a session. Forty-three participants with chronic poststroke hemiparesis walked at their self-selected and maximal walking speeds on a treadmill. Propulsive impulse, peak propulsive force, and mean propulsive value (propulsive impulse divided by duration) were analyzed. In addition, each participant’s cadence was calculated. Pearson correlation coefficients were used to determine the relationships between different measurements of propulsion versus walking speed as well as changes in propulsion versus changes in walking speed. Stepwise linear regression was used to determine which measurement of propulsion best predicted walking speed and changes in walking speed. The results showed that all 3 measurements of propulsion were correlated to walking speed, with peak propulsive force showed the strongest correlation. Similarly, when participants increased their walking speeds, changes in peak propulsive forces showed the strongest correlation to changes in walking speed. In addition, multiplying each measurement by cadence improved the correlations. The present study suggests that measuring peak propulsive force and cadence may be most appropriate of the variables studied to characterize propulsion in individuals poststroke.
Descriptor Terms: AMBULATION, BIOENGINEERING, BODY MOVEMENT, EVALUATION TECHNIQUES, MEASUREMENTS, STROKE.


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Get this Document: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5164961/.

Citation: Hsiao, HaoYuan, Zabielski Jr., Thomas M., Palmer, Jacqueline A., Higginson, Jill S., Binder-Macleod, Stuart A.. (2016). Evaluation of measurements of propulsion used to reflect changes in walking speed in individuals poststroke.  Jopurnal of Biomechanics , 49(16), Pgs. 4107-4112. Retrieved 6/21/2018, from REHABDATA database.