Synchronous monitoring of muscle dynamics and muscle force for maximum isometric tetanus

M. Zakir Hossain; Wolfgang Grill

doi:10.1117/12.847670

9 April 2010 Synchronous monitoring of muscle dynamics and muscle force for maximum isometric tetanus

M. Zakir Hossain, Wolfgang Grill

Proceedings Volume 7650, Health Monitoring of Structural and Biological Systems 2010; 76502V (2010) https://doi.org/10.1117/12.847670
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2010, San Diego, California, United States

Abstract

Skeletal muscle is a classic example of a biological soft matter . At both macro and microscopic levels, skeletal muscle is exquisitely oriented for force generation and movement. In addition to the dynamics of contracting and relaxing muscle which can be monitored with ultrasound, variations in the muscle force are also expected to be monitored. To observe such force and sideways expansion variations synchronously for the skeletal muscle a novel detection scheme has been developed. As already introduced for the detection of sideways expansion variations of the muscle, ultrasonic transducers are mounted sideways on opposing positions of the monitored muscle. To detect variations of the muscle force, angle of pull of the monitored muscle has been restricted by the mechanical pull of the sonic force sensor. Under this condition, any variation in the time-of-flight (TOF) of the transmitted ultrasonic signals can be introduced by the variation of the path length between the transducers. The observed variations of the TOF are compared to the signals obtained by ultrasound monitoring for the muscle dynamics. The general behavior of the muscle dynamics and muscle force shows almost an identical concept. Since muscle force also relates the psychological boosting-up effects, the influence of boosting-up on muscle force and muscle dynamics can also be quantified form this study. Length-tension or force-length and force-velocity relationship can also be derived quantitatively with such monitoring.

Citation Download Citation

M. Zakir Hossain and Wolfgang Grill "Synchronous monitoring of muscle dynamics and muscle force for maximum isometric tetanus", Proc. SPIE 7650, Health Monitoring of Structural and Biological Systems 2010, 76502V (9 April 2010); https://doi.org/10.1117/12.847670

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KEYWORDS

Ultrasonics

Sensors

Transducers

Ultrasonography

Magnesium

Software development

Brain

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