TY  - JOUR
PY  - 2016//
TI  - Linear variability of gait according to socioeconomic status in elderly
JO  - Colombia medica
A1  - Medina González, Paul
SP  - 94
EP  - 99
VL  - 47
IS  - 2
N2  - AIM;  To evaluate the linear variability of comfortable gait according to socioeconomic status in community-dwelling elderly.    METHOD:  For this cross-sectional observational study 63 self- functioning elderly were categorized according to the socioeconomic level on medium-low (n= 33, age 69.0 ± 5.0 years) and medium-high (n= 30, age 71.0 ± 6.0 years). Each participant was asked to perform comfortable gait speed for 3 min on an 40 meters elliptical circuit, recording in video five strides which were transformed into frames, determining the minimum foot clearance, maximum foot clearance and stride length. The intra-group linear variability was calculated by the coefficient of variation in percent.    RESULTS:  The trajectory parameters variability is not different according to socioeconomic status with a 30% (range= 15-55%) for the minimum foot clearance and 6% (range= 3-8%) in maximum foot clearance. Meanwhile, the stride length consistently was more variable in the medium-low socioeconomic status for the overall sample (p= 0.004), female (p= 0.041) and male gender (p= 0.007), with values near 4% ​​(range = 2.5-5.0%) in the medium-low and 2% (range = 1.5-3.5%) in the medium-high.    CONCLUSIONS:  The intra-group linear variability is consistently higher and within reference parameters for stride length during comfortable gait for elderly belonging to medium-low socioeconomic status. This might be indicative of greater complexity and consequent motor adaptability.    KEYWORDS:  Gait; aging; allostasis; biomechanical phenomena; socioeconomic factors  <p />  <p>Language: en</p>
LA  - en
SN  - 1657-9534
UR  - http://dx.doi.org/
ID  - ref1
ER  -