TY - JOUR
T1 - The validity and reliability of the GAITRite system's measurements
T2 - A preliminary evaluation
AU - McDonough, Andrew L.
AU - Batavia, Mitchell
AU - Chen, Fang C.
AU - Kwon, Soonjung
AU - Ziai, James
PY - 2001
Y1 - 2001
N2 - Objective: To compare the concurrent validity and reliability of the GAITRiteTM computerized gait analysis system with validated paper-and-pencil and video-based methods. Design: Within-groups, repeated-measures design. Setting: Research laboratory in a physical therapy education program. Participant: One healthy woman, age 27 years. Interventions: A subject walked across the walkway of the GAITRite system at various walking rates and degrees of step symmetry for 2 of the 3 analyses. Paper placed over the walkway enabled concurrent paper-and-pencil analysis. The subject was concurrently videotaped from the side. For the other analysis, a stride simulator with known step and stride lengths was applied to the walkway to simulate 2 steps and 1 stride. Main Outcome Measures: Cadence, walking speed, right and left step and stride lengths, and right and left step times. Results: Excellent paper-and-pencil and GAITRite correlations (intraclass correlation coefficient [ICC] > 95) for spatial measures and excellent video-based and GAITRite correlations (ICC > 93) for temporal measures were found. GAITRite measures of step lengths and times were reliable in both walkway center and left-of-center measurements. Conclusions: Based on this data, GAITRite is a valid and reliable tool for measuring selected spatial and temporal parameters of gait.
AB - Objective: To compare the concurrent validity and reliability of the GAITRiteTM computerized gait analysis system with validated paper-and-pencil and video-based methods. Design: Within-groups, repeated-measures design. Setting: Research laboratory in a physical therapy education program. Participant: One healthy woman, age 27 years. Interventions: A subject walked across the walkway of the GAITRite system at various walking rates and degrees of step symmetry for 2 of the 3 analyses. Paper placed over the walkway enabled concurrent paper-and-pencil analysis. The subject was concurrently videotaped from the side. For the other analysis, a stride simulator with known step and stride lengths was applied to the walkway to simulate 2 steps and 1 stride. Main Outcome Measures: Cadence, walking speed, right and left step and stride lengths, and right and left step times. Results: Excellent paper-and-pencil and GAITRite correlations (intraclass correlation coefficient [ICC] > 95) for spatial measures and excellent video-based and GAITRite correlations (ICC > 93) for temporal measures were found. GAITRite measures of step lengths and times were reliable in both walkway center and left-of-center measurements. Conclusions: Based on this data, GAITRite is a valid and reliable tool for measuring selected spatial and temporal parameters of gait.
KW - Gait
KW - Rehabilitation
KW - Reproducibility of results
KW - Walking
UR - http://www.scopus.com/inward/record.url?scp=0035096375&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035096375&partnerID=8YFLogxK
U2 - 10.1053/apmr.2001.19778
DO - 10.1053/apmr.2001.19778
M3 - Article
C2 - 11245768
AN - SCOPUS:0035096375
SN - 0003-9993
VL - 82
SP - 419
EP - 425
JO - Archives of Physical Medicine and Rehabilitation
JF - Archives of Physical Medicine and Rehabilitation
IS - 3
ER -