Journal article
The influence of body mass index and velocity on knee biomechanics during walking
Gait & posture, v 37(4), pp 575-579
01 Apr 2013
PMID: 23103243
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Obesity has been associated with both the development and progression of knee osteoarthritis. Being overweight or obese from a young age is likely to decrease the age of onset for co-morbidities of obesity such as osteoarthritis. However, research on osteoarthritis has thus far focused on older adults. Therefore, the purpose of this study was to determine whether young adults who are overweight or obese exhibit biomechanical risk factors for knee osteoarthritis at either their preferred walking velocity or at 1 m/s, which was slower than the preferred velocity. Thirty healthy young adults formed three equal groups according to body mass index. Three dimensional kinetics and kinematics were collected while participants walked overground at both velocities. Joint moments were normalized to fat free weight and height. The preferred walking velocity of obese participants was slower than that of normal weight individuals. There were no differences in knee flexion excursion, peak knee flexion angle, normalized, peak knee flexion moment or normalized peak knee adduction moment among groups. Obese participants walked with lower peak knee adduction angle than both overweight and normal body mass index participants and several shifted towards knee abduction. All groups had smaller knee flexion excursion, peak knee flexion angle, peak knee flexion moment and peak knee adduction moment at 1 m/s compared to preferred walking velocity. Overall, young and otherwise healthy overweight and obese participants have knee biomechanics during gait at preferred and slow walking velocities that are comparable to normal weight adults. (C) 2012 Elsevier B.V. All rights reserved.
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Details
- Title
- The influence of body mass index and velocity on knee biomechanics during walking
- Creators
- Julia Freedman Silvernail - University of Massachusetts AmherstClare E. Milner - University of Tennessee at KnoxvilleDixie Thompson - University of Tennessee at KnoxvilleSongning Zhang - University of Tennessee at KnoxvilleXiaopeng Zhao - University of Tennessee at Knoxville
- Publication Details
- Gait & posture, v 37(4), pp 575-579
- Publisher
- Elsevier
- Number of pages
- 5
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Physical Therapy (and Rehabilitation Sciences)
- Web of Science ID
- WOS:000317998900018
- Scopus ID
- 2-s2.0-84875618021
- Other Identifier
- 991019296566104721
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- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Neurosciences
- Orthopedics
- Sport Sciences