A bioengineering analysis of human muscle and joint forces in the lower limbs during running
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CONTRIBUTORS:
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JOURNAL:
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YEAR:
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1986
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PUB TYPE:
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Journal Article
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SUBJECT(S):
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RUNNING; MUSCLE; LEG; JOINT; FORCE; BIOMEDICAL-ENGINEERING; BIOMECHANICS; MATHEMATICAL-MODEL; INJURY
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DISCIPLINE:
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No discipline assigned
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HTTP:
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LANGUAGE:
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English
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PUB ID:
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103-366-238
(Last edited on
2002/02/27 18:45:02 US/Mountain)
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SPONSOR(S):
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ABSTRACT:
A two-dimensional, dynamic bioengineering model of the lower limbs was developed in order to estimate muscle and joint forces present during running at 4.5 m s-1. Data were collected from four subjects using a force platform and cine film. Individual X-rays and anthropometric data from the lower limbs were utilized to produce accurate bone models of the subjects' legs. Electromyographic verification of the model was undertaken while a runner was undergoing treadmill running at 4.5 m s-1. Results indicate that peak muscle forces of 22 times subject body weight (22 BW) could be present in the quadriceps muscle group and 7 BW in the gastrocnemius. The anterior shin muscles were found to be active for the first 9% of stance phase only, and compressive loads of 33 BW were found in the knee joint. The relationship between these high forces in the lower limbs and running related injuries is discussed.
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