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Shoulder, low back, or knee strength degradation

肩部、腰部或膝盖力量下降

基本信息

批准号：
6896153
负责人：
XUDONG ZHANG
金额：
$ 8.01万
依托单位：
UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN
依托单位国家：
美国
项目类别：
财政年份：
2003
资助国家：
美国
起止时间：
2003-09-01 至 2007-12-31
项目状态：
已结题

来源：
https://reporter.nih.gov/project-details/6896153
关键词：
back injury biomechanics clinical research disease /disorder proneness /risk ergonomics human subject injury prevention joint disorder muscle disorders muscle strength occupational health /safety

项目摘要

DESCRIPTION (provided by applicant): The general objective of this research is to systematically investigate whether and how strength degradation in three major body joints--the shoulder, low back, and knee--affects the movement strategies and injury risk associated with the performance of manual materials handling. Our long-term goal is to develop quantitative tools and guidelines that integrate movement and strength information for the recognition, prediction, and prevention of occupational musculoskeletal injuries. This proposed research project seeks to accomplish the following specific aims: (1) To evaluate the strengths of human subjects, and through analysis of acquired strength profiles, to establish four subject groups one a symptomatic control group and three groups of individuals with selectively degraded shoulder, low back, or knee strength. (2) To measure three-dimensional movements during simulated manual materials handling tasks performed by the four groups of subjects under various task conditions (created by systematically varying task parameters such as load handled, angle of asymmetry, destination location). (3) To model the measured movements using a high-fidelity whole-body biomechanical linkage representation, and through determination of the active degrees of freedom in various measured movements, to examine the hypothesized whole-body joint motion activation pattern change. (4) To model the measured movements using an optimized-based differential inverse kinematics (ODIK) approach, and thus to visualize the hypothesized whole-body inter-joint motion apportionment strategy aberration. (5) To model the measured movements using an inverse-dynamics-driven direct dynamics (ID 4) approach, and thus to gain insight into the kinetic cause for hypothesized kinematics aberration and examine hypothesized changes in moment allowance (i.e., "strength reserve") and risk of injury. A successful completion of this project will lead to: (1) Motion-based evaluation of muscle strength degradation for proactive ergonomics intervention, return-to-work assessment, and rehabilitative ergonomics implementation; (2) Guidelines and computerized simulation models for designing consumer products or workplaces to better accommodate special population with degraded strength capability; and (3) A better understanding of how muscle strength influences the motion control strategies and consequently the injury risk during manual materials handling tasks in specific and human movements in general.

描述（由申请人提供）：本研究的总体目标是系统地调查三个主要身体关节（肩部、下背部和膝盖）的力量退化是否以及如何影响与手工搬运材料性能相关的运动策略和损伤风险。我们的长期目标是开发定量工具和指南，将运动和力量信息整合起来，用于识别、预测和预防职业性肌肉骨骼损伤。这项拟议的研究项目旨在实现以下具体目标：