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Loading of the joints of the lower e...

Cole, Gerald Kenneth.

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Loading of the joints of the lower extremities during the impact phase in running.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Loading of the joints of the lower extremities during the impact phase in running./
Author:	Cole, Gerald Kenneth.
Description:	261 p.
Notes:	Adviser: Benno M. Nigg.
Contained By:	Dissertation Abstracts International57-01B.
Subject:	Biology, Anatomy. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NN04175
ISBN:	9780612041752

Loading of the joints of the lower extremities during the impact phase in running.
Cole, Gerald Kenneth.

Loading of the joints of the lower extremities during the impact phase in running. - 261 p.

Adviser: Benno M. Nigg.

Thesis (Ph.D.)--University of Calgary (Canada), 1995.

The model developed in this study has the potential to assist in evaluating each of the above possibilities in runners. However, further evaluation of the assumptions and parameters used in the model is first required.

ISBN: 9780612041752Subjects--Topical Terms:

1021727
Biology, Anatomy.

Loading of the joints of the lower extremities during the impact phase in running.
LDR:03139nam 2200325 a 45 001 951197
005 20110609
008 110609s1995 ||||||||||||||||| ||eng d
020 $a 9780612041752
035 $a (UMI)AAINN04175
035 $a AAINN04175
040 $a UMI $c UMI
100 1 $a Cole, Gerald Kenneth. $3 1275178
245 1 0 $a Loading of the joints of the lower extremities during the impact phase in running.
300 $a 261 p.
500 $a Adviser: Benno M. Nigg.
500 $a Source: Dissertation Abstracts International, Volume: 57-01, Section: B, page: 0492.
502 $a Thesis (Ph.D.)--University of Calgary (Canada), 1995.
520 $a The model developed in this study has the potential to assist in evaluating each of the above possibilities in runners. However, further evaluation of the assumptions and parameters used in the model is first required.
520 $a The main purpose of this study was to compare the sagittal plane loading (change in magnitude and rate of change) of the joints of the support leg during the impact phase in running to the vertical ground reaction force (VGRF) and to compare these loading characteristics between subjects using a direct dynamics simulation model of the musculoskeletal system. During development of the impact model, the modelling of force production in skeletal muscle was examined, as well as the influences of muscles, soft tissue movement, and foot inversion-eversion on the impact loading of the body. Evaluation of the model with respect to experimental measurements showed that it was able to predict the peak and average rate of change of the VGRF with mean error and standard deviation of 12.4 $\pm$ 7.8% and 16.2 $\pm$ 9.3%, respectively, for five subjects. In addition, the kinematics of each subject were well represented.
520 $a The results of the study suggested that muscles generally increased the external loading, but not the loading of the joints. Soft tissue movement generally decreased the external loading and, hence, the internal loading. Foot inversion-eversion generally increased the time to the peak VGRF and, as a result, decreased the rate of loading both externally and internally. The precise influences varied between subjects.
520 $a Animal experiments in which repetitive loading, similar to the vertical ground reaction force in running, has produced degenerative changes to articular cartilage suggest that runners may be at risk to the development of osteoarthritis. The two results of this study that (a) the loading in the joints of the lower extremities were always less than the external loading and (b) there was considerable variability in joint loading between subjects provide possible explanations why osteoarthritis is not generally observed in runners. A third alternative is also proposed based on adaptation of cartilage to mechanical load.
590 $a School code: 0026.
650 4 $a Biology, Anatomy. $3 1021727
650 4 $a Engineering, Biomedical. $3 1017684
650 4 $a Health Sciences, Recreation. $3 1018003
690 $a 0287
690 $a 0541
690 $a 0575
710 2 $a University of Calgary (Canada). $3 1017619
773 0 $t Dissertation Abstracts International $g 57-01B.
790 $a 0026
790 1 0 $a Nigg, Benno M., $e advisor
791 $a Ph.D.
792 $a 1995
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=NN04175