TY  - JOUR
PY  - 2016//
TI  - Spatiotemporal and variability gait data in community-dwelling elderly women from Brazil
JO  - Revista Brasileira de Fisioterapia
A1  - Kirkwood, Renata N.
A1  - Gomes, Henrique A.
A1  - Sampaio, Rosana F.
A1  - Furtado, Sheyla R. C.
A1  - Moreira, Bruno S.
SP  - 258
EP  - 266
VL  - 20
IS  - 3
N2  - BACKGROUND: Gait is an extremely complex motor task; therefore, gait data should encompass as many gait parameters as possible. <br><br>OBJECTIVE: To provide reference values for gait measurements obtained from a Brazilian group of community-dwelling elderly females between the ages of 65 and 89 years and to apply the PCA-biplot to yield insight into different walking strategies that might occur during the aging process. <br><br>METHOD: 305 elderly community-dwelling females living in Brazil were stratified into four age groups: 65-69 years (N=103); 70-74 years (N=95); 75-79 years (N=77); and ≥80 years (N=30). Age, height, and BMI were assessed to describe the characteristics of the groups. Gait spatiotemporal and variability data were obtained using the GAITRite® system. Principal component analysis, followed by MANOVA and the PCA-biplot approach were used to analyze the data. <br><br>RESULTS: 95% CI showed that only three components - rhythm, variability, and support - together explained 74.2% of the total variance in gait that were different among the groups. The older groups (75-79 and ≥80 years) walked with lower than average velocity, cadence, and step length and were above average for the variables stance, step, swing, and double support time and the ≥80 year old group presented the highest gait variability compared to the other groups. <br><br>CONCLUSION: Aging is associated with decreased gait velocity and cadence and increased stance, step time, and variability, but not associated with changes in base of support. In addition, the PCA-biplot indicates a decline towards decreased rhythm and increased variability with aging.<p />  <p>Language: en</p>
LA  - en
SN  - 1413-3555
UR  - http://dx.doi.org/10.1590/bjpt-rbf.2014.0157
ID  - ref1
ER  -