Journal
CLINICAL BIOMECHANICS
Volume 32, Issue -, Pages 249-254Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.clinbiomech.2015.11.003
Keywords
Early rehabilitation; Gait; Running; Anterior cruciate ligament reconstruction; Knee
Categories
Funding
- National Institutes of Health (NIH) [K12 HD0055929]
- CATZ Physical Therapy and Sports Performance Center
Ask authors/readers for more resources
Background: Normalization of gait is expected 8-12 weeks after anterior cruciate ligament reconstruction and is a criterion for progression to running. Long-term persistence of sagittal knee loading deficits suggests that early goals are not met. Magnitude and progression of deficits in gait during this time and their relationship to deficits in running are not known. Methods: 12 individuals status-post reconstruction (5 males) underwent 3-dimensional motion analysis of gait after surgery: one (T1) and three (T2) months and at initiation of running (T3); and running T3. Repeated measures ANOVAs (limb x time) assessed differences in knee flexion, extensor moment impulse and negative work in gait; paired t-tests compared limbs during running; and Pearson's correlations determined associations between limb ratios (moment and work) in gait and running. Findings: Less flexion (-4.4 (0.63) degrees; mean (SE)), 35% smaller extensor moment (-0.15 (0.006) Nm * s/kg) and 47% less work (-0.03 (0.008) J/kg) were observed in the surgical knee during gait across time. Moment and work were 1.7 (-0.1 (0.03) Nm * s/kg) and 1.6 times greater (-0.23 (0.047) J/kg) in non-surgical knee during running. Moment and work limb asymmetries correlated across time during gait (r = 0.778-0.929, P < 0.001) and to asymmetries during running. Interpretation: Limb asymmetries in knee loading present one month after reconstruction persist 4 months post reconstruction. Correlations between limb asymmetries during gait across time and to running suggest that early gait behaviors relate to longer-term loading. Greater attention should be placed on early gait training. (C) 2015 Published by Elsevier Ltd.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available