Document Detail

Kinematics of hip, knee, ankle of the young and elderly Chinese people during kneeling activity.
MedLine Citation:
PMID:  23024050     Owner:  NLM     Status:  MEDLINE    
OBJECTIVE: The purpose of this study was to measure the kinematics of the lower limbs of Chinese people during normal kneeling activity, as such data could be valuable in designing joint prosthesis and arthroplasty that meet the needs of Chinese citizens' daily activities.
METHODS: Thirty young and twenty elderly Chinese participants with no personal history of joint diseases were recruited, and matched by age (average age: 23.8 years for the young group, 60.8 years for the elderly group). Each participant performed six trials during which three-dimensional (3D) kinematics data were collected and the means of the 3D angles of the ankle, knee, and hip joints of two groups were calculated.
RESULTS: There were no obvious differences between the two groups in the knee and ankle joints. The mean range of knee flexion was 139.6° for the young group and 140.9° for the elderly group. The mean range of ankle flexion was 35.7° for the young group and 37.6° for the elderly group. The maximal eccentric flexion at the hip joint was 67.5° for the young group compared to 100.5° for the elderly group.
CONCLUSIONS: The elderly uses more hip flexion angles than the young when assuming the kneeling posture. The ranges of motion obtained during kneeling activity are greater than the reported mean ranges of motion achieved following joint arthroplasty. The data could be valuable in establishing criteria for lower limb prosthetics and rehabilitation protocol for the Chinese population.
Hai Zhou; Dong-mei Wang; Tao-ran Liu; Xiang-sen Zeng; Cheng-tao Wang
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of Zhejiang University. Science. B     Volume:  13     ISSN:  1862-1783     ISO Abbreviation:  J Zhejiang Univ Sci B     Publication Date:  2012 Oct 
Date Detail:
Created Date:  2012-10-01     Completed Date:  2013-03-04     Revised Date:  2013-07-11    
Medline Journal Info:
Nlm Unique ID:  101236535     Medline TA:  J Zhejiang Univ Sci B     Country:  China    
Other Details:
Languages:  eng     Pagination:  831-8     Citation Subset:  IM    
Institute of Biomedical Manufacturing and Life Quality Engineering, School of Mechanical and Power Energy Engineering, Shanghai Jiao Tong University, China.
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MeSH Terms
Aging / physiology
Ankle Joint / physiology*
Asian Continental Ancestry Group
Hip Joint / physiology*
Imaging, Three-Dimensional
Joint Prosthesis
Knee Joint / physiology*
Middle Aged
Posture / physiology*
Prosthesis Design
Range of Motion, Articular / physiology
Young Adult

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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