Biomechanics of Wheelchair Propulsion

轮椅推进的生物力学

• 批准号: 7234424
• 负责人: KAI-NAN AN
• 金额: $ 27.31万
• 依托单位: MAYO CLINIC ROCHESTER
• 依托单位国家: 美国
• 财政年份: 2005
• 资助国家: 美国
• 起止时间: 2005-08-01 至 2009-05-31
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/7234424
• 关键词: Activities of Daily Living; American; Biomechanics; Collection; Computer Simulation; Condition; Daily; Data; Databases; Depth; Development; Electromyography; Environment; Etiology; Exercise; Functional disorder; High Prevalence; Incidence; Individual; Injury; Instruction; Joints; Kinetics; Laboratories; Leg; Life; Link; Manual wheelchair; Measurement; Mechanics; Modeling; Motor; Muscle; Musculoskeletal; Musculoskeletal Diseases; Musculoskeletal Pain; Numbers; Pain; Pattern; Persons; Purpose; Ramp; Reporting; Research; Research Personnel; Risk; Shoulder; Side; Speed; Surface; Techniques; Testing; Therapeutic; Upper Extremity; Wheelchair fitting; Wheelchair propulsion; Wheelchairs; Wireless Technology; base; experience; insight; instrument; kinematics; muscle stress; musculoskeletal injury; prevent; programs; prophylactic; response; soft tissue

DESCRIPTION (provided by applicant): Over 1.5 million Americans rely on manual wheelchairs for mobility, and over half report experiencing pain in their shoulders and/or other upper extremity (UE) joints. While there has been a great amount of research invested towards understanding the biomechanics of wheelchair propulsion, no definitive answers have been produced to determine the etiology of this pain. This may be due to the fact that laboratory collection of wheelchair propulsion may not fully represent real life conditions. To date, no data exists that compares laboratory versus field based measurements of wheelchair propulsion biomechanics. Additionally, currently available kinematic and kinetic data describing joint intersegmenal loads may not be adequate for explaining the loading on specific muscles and soft tissues. We propose to gain a deeper understanding of wheelchair propulsion by starting to obtain field-based data in combination with computer modeling. The first aim of this project is to contrast the forces and moments exerted during outdoor wheelchair propulsion using a pair of wireless instrumented wheels with data collected on a wheelchair ergometer during propulsion at the speed and power recorded during the outdoor trial. The second aim of the-study will involve the development of a musculoskeletal model to determine the activation patterns of the subjects as they propel on level ground, up a ramp, and along a sideslope. Optimization techniques will be used to determine muscle force distribution and model results will be validated through correlation with EMG data. Such a validated model will lend insight as to the changes in UE muscle response as users propel over varied terrains. It is our intent to provide a more realistic picture of UE intersegmental joint loads and muscle forces in the natural environment of the user. Subsequently this will aid in the development of therapeutic means to protect the shoulder from injury.

描述（由申请人提供）：超过 150 万美国人依靠手动轮椅行动，超过一半的人报告肩膀和/或其他上肢 (UE) 关节疼痛。尽管为了了解轮椅推进的生物力学进行了大量研究，但尚未得出明确的答案来确定这种疼痛的病因。这可能是因为实验室收集的轮椅推进力可能无法完全代表现实生活条件。迄今为止，还没有比较轮椅推进生物力学的实验室测量与现场测量的数据。此外，目前可用的描述关节节间负荷的运动学和动力学数据可能不足以解释特定肌肉和软组织上的负荷。我们建议通过开始获取现场数据并结合计算机建模来更深入地了解轮椅推进。该项目的第一个目标是将使用一对无线仪表轮的户外轮椅推进过程中施加的力和力矩与以户外试验期间记录的速度和功率推进过程中轮椅测力计上收集的数据进行对比。该研究的第二个目标将涉及开发肌肉骨骼模型，以确定受试者在平地、爬坡道和沿边坡行驶时的激活模式。优化技术将用于确定肌肉力量分布，模型结果将通过与肌电图数据的关联进行验证。这种经过验证的模型将有助于了解用户在不同地形上行驶时 UE 肌肉反应的变化。我们的目的是提供用户自然环境中 UE 节间关节载荷和肌肉力的更真实的图像。随后，这将有助于开发保护肩部免受伤害的治疗方法。