Validation of the Movement and Activity in Physical Space System as a Functional Outcome Measure Following Anterior Cruciate Ligament Reconstruction Surgery
Year: 2013
Type: article
Abstract: SILVA, KEVIN J., M.S., August 2013, Athletic Training Validation of the Movement Activity in Physical Space System as a Functional Outcome Measure Following Anterior Cruciate Ligament Reconstruction Surgery Director of Thesis: Brian G. Ragan Introduction: The World Health Organization’s International Classification of Functioning, Disability, and Health (WHO ICF) defines function as the interaction between body function and activity within the social environment. Current outcome measures fail to assess physical activity within free-living environments. Measuring physical activity within free-living environments may be a more accurate measure of function. The Movement and Activity in Physical Space (MAPS) System has been developed and validated as an objective functional outcome measure that combines physical activity data with free-living environmental interactions. An accelerometer records acceleration and steps and global positioning system (GPS) device measures environmental interactions. These data are then combined to produce raw scores that represent function using the MAPS formula. Purpose: The primary purpose of this study was to further develop and validate the MAPS system as an objective functional outcome measure following anterior cruciate ligament (ACL) reconstruction surgery. The secondary purpose of this study was to determine if MAPS scores are sensitive to change throughout the recovery process. Methods: An observational and longitudinal study was designed. A total of 8 participants completed 4 data collection sessions following ACL surgery (n = 8, mean ± SD; age, 19.71 ± 1.98y; height, 177.44 ± 6.12cm; weight, 83.12 ± 4 12.44kg). Physical activity data (accelerometer) and geospatial locations (GPS) were analyzed for each day of data collection. Results: Person product correlation showed little to no correlation between the KOOS and PROMIS assessments when compared to MAPS scores. MAPSAC and MAPSS scores observed a 445% and 513% percent change from SI + 1-10 and SI + 36-40, respectively. Dependent t-test comparing SI + 1-10 to SI + 36-40 showed that the MAPS scores were statistically different over time. Conclusion: The MAPS System has been developed to measure physical activity within the free-living environmental as the main components of function. The results of this study provide validity evidence for both MAPS acceleration (MAPSAC) and MAPS steps (MAPSS) scores to detect progression or regression following ACL reconstruction surgery. Further research and development of the MAPS System is needed to observe other populations.
Author: Kevin J. Silva
Institution: Ohio University
Language: English
Subfield: Surgery
Field: Medicine
Domain: Health Sciences
Open Access status: green
OpenAlex ID: W2289514085