Advisor Information
Brian Knarr
Location
Dr. C.C. and Mabel L. Criss Library
Presentation Type
Poster
Start Date
2-3-2018 9:00 AM
End Date
2-3-2018 10:15 AM
Abstract
EXAMINING THE MINUTE TO MINUTE PREDICTABILITY OF WALKING DISTANCE ACROSS MULTIPLE TERRAINS
Tyler Hamer, Abderrahman Ouattas, Katlyn Nimtz, & Brian A. Knarr
Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE 68182
With findings that the 6MWT is more efficient than the original 12-minute walk test (12MWT), perhaps it can be evident that even the 6MWT can be shortened to examine its effects in a shorter duration that can be more beneficial to the participant. The objective of this study is to examine the outcomes of each minute throughout the 6MWT trials and to see if functional measures can be obtained at an early mark to facilitate the effects of movement variability throughout the trial. A total of 18 healthy older adults participated within this study. Subjects completed three walking trials on the same day on three different surfaces: an indoor track, an outdoor paved surface, and an outdoor unpaved surface. Distances were collected at every minute mark. Linear regressions were performed to measure predictability of data from minute to minute. R² values were recorded to signify predictive trends amongst each minute within the trials. Linear regressions revealed that distance within the first few minutes significantly predicted performance around the six-minute mark. Results indicated that very strong correlations between the mean distances walked across minutes appeared around the two-minute mark, with an R² value of .95. This shows that the first minute is unreliable of 6 minute findings yet by the second minute, you can highly predict results that you would find at the end of the 6MWT. While these findings prove highly relevant for healthy populations, further research needs to be conducted to elaborate on shortening the 6MWT in consideration to injured populations.
Examining the minute to minute predictability of walking distance across multiple terrains
Dr. C.C. and Mabel L. Criss Library
EXAMINING THE MINUTE TO MINUTE PREDICTABILITY OF WALKING DISTANCE ACROSS MULTIPLE TERRAINS
Tyler Hamer, Abderrahman Ouattas, Katlyn Nimtz, & Brian A. Knarr
Department of Biomechanics, University of Nebraska at Omaha, Omaha, NE 68182
With findings that the 6MWT is more efficient than the original 12-minute walk test (12MWT), perhaps it can be evident that even the 6MWT can be shortened to examine its effects in a shorter duration that can be more beneficial to the participant. The objective of this study is to examine the outcomes of each minute throughout the 6MWT trials and to see if functional measures can be obtained at an early mark to facilitate the effects of movement variability throughout the trial. A total of 18 healthy older adults participated within this study. Subjects completed three walking trials on the same day on three different surfaces: an indoor track, an outdoor paved surface, and an outdoor unpaved surface. Distances were collected at every minute mark. Linear regressions were performed to measure predictability of data from minute to minute. R² values were recorded to signify predictive trends amongst each minute within the trials. Linear regressions revealed that distance within the first few minutes significantly predicted performance around the six-minute mark. Results indicated that very strong correlations between the mean distances walked across minutes appeared around the two-minute mark, with an R² value of .95. This shows that the first minute is unreliable of 6 minute findings yet by the second minute, you can highly predict results that you would find at the end of the 6MWT. While these findings prove highly relevant for healthy populations, further research needs to be conducted to elaborate on shortening the 6MWT in consideration to injured populations.