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A myograph is any device used to measure the force produced by a muscle when under contraction. Such a device is commonly used in myography, the study of the velocity and intensity of
Information on microvessel studies
(wire myograph)
Various types of blood vessel myographs
Blood vessel myographs
Exercise physiology
A myograph is any device used to measure the force produced by a muscle when under contraction. Such a device is commonly used in myography, the study of the velocity and intensity of muscular contraction
Muscle contraction is the activation of tension-generating sites within muscle cells. In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as ...
.
A myograph can take several forms: for tubular structures such as blood vessels these include the pressure myograph (where a segment of a blood vessel is cannulated at either or both ends) and the wire myograph (where the blood vessel segment is threaded onto a pair of pins or wires); for skeletal muscle other devices such as the acceleromyograph
An acceleromyograph is a piezoelectric myograph, used to measure the force produced by a muscle after it has undergone nerve stimulation. Acceleromyographs may be used, during anaesthesia when muscle relaxants are administered, to measure the d ...
can be used.
In pharmacology, myographs are used to record muscle contraction in organ bath preparations.
The related technique of electromyography is used to measure electrical activity of the muscle instead of force.
References
{{reflistExternal links
Information on microvessel studies
(wire myograph)
Various types of blood vessel myographs
Blood vessel myographs
Exercise physiology