The elbow joint is critical for positioning the hand to carry out activities of daily living. Deficits in elbow joint range of motion, torque production capabilities, or alterations in elbow joint stiffness affect the ability to successfully carry out feeding, grooming, and other essential activities . Thus quantifying elbow joint stiffness is desirable. Quantifying elbow joint stiffness could help diagnose, monitor and rehabilitate elbow impairments if its relationship to them is known. Ultimately, accurate measurements of joint stiffness can also impact the design of artificial limbs and human motor system control and simulation. The long-term research goal is to quantify how elbow stiffness changes with elbow joint flexion angles, movement speeds, muscle contraction, and injury or disease. The immediate goal was to validate that a recently-modified Stiffness Tester measures elbow stiffness values within the range of those previously reported. The expectation was that muscle contraction level and joint position would influence the elbow stiffness values.
- Bioengineering Division
Measuring Elbow Stiffness at Two Muscle Contraction Levels
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Zeng, S, Kuxhaus, L, & Robinson, CJ. "Measuring Elbow Stiffness at Two Muscle Contraction Levels." Proceedings of the ASME 2013 Summer Bioengineering Conference. Volume 1B: Extremity; Fluid Mechanics; Gait; Growth, Remodeling, and Repair; Heart Valves; Injury Biomechanics; Mechanotransduction and Sub-Cellular Biophysics; MultiScale Biotransport; Muscle, Tendon and Ligament; Musculoskeletal Devices; Multiscale Mechanics; Thermal Medicine; Ocular Biomechanics; Pediatric Hemodynamics; Pericellular Phenomena; Tissue Mechanics; Biotransport Design and Devices; Spine; Stent Device Hemodynamics; Vascular Solid Mechanics; Student Paper and Design Competitions. Sunriver, Oregon, USA. June 26–29, 2013. V01BT34A004. ASME. https://doi.org/10.1115/SBC2013-14651
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