METHOD FOR MEASUREMENT OF SKELETAL MUSCLE HYPERTROPHY AND COMPLEX FOR ITS IMPLEMENTATION Russian patent published in 2022 - IPC A61B5/53 A61B5/296 A61B8/08 

FIELD: medicine.

SUBSTANCE: group of inventions relates to medicine, namely to a method and a complex for the measurement of skeletal muscle hypertrophy. When implementing the method, a sensor system is precisely positioned on the skin surface above the area of study at rest or when performing muscle contractions with a load, using a stand. At the same time, the stand includes a system of stepper motors along X, Y and Z coordinates. Signals are controlled from a control unit of stepper motors, using operator commands entered via a personal computer. Electrical impedance signals from measuring electrodes, ultrasonic signals from an ultrasonic sensor and mechano-myographic signals from force sensors are registered to control the force of pressing measuring sensors to the area of interest. As a result of the joint analysis of electrical impedance signals, electromyogram, mechanomyogram and ultrasound, an assessment of the level of muscle hypertrophy is formed by analyzing their functional state, strength, stiffness, muscle volume parameters and muscle structure resistance. The complex consists of a stand, an ultrasound device and a personal computer, a video capture card. The stand consists of a bio-signal registration unit, a mechanical signal registration unit, a control unit of stepper motors, an optical encoder of movement along the Z axis, a force to control the force of pressing measuring sensors to the area of interest along the Z axis, and a sensor system. The sensor system includes an electrode system for registering the electromyogram and electro-impedance, and a linear ultrasonic sensor. At the same time, outputs of the bio-signal registration unit and the mechanical signal registration unit are connected to PC. Outputs of the optical encoder of movement along the Z axis, force sensors along the Z axis are connected to an input of the mechanical signal registration unit. An output of the electrode system is connected to an input of the bio-signal registration unit. An output of the linear ultrasonic sensor is connected to the ultrasound device, an output of which is connected to an input of the video capture card. An output of the video capture card is in turn connected to PC. The control unit of stepper motors is a system of stepper motors along X, Y and Z coordinates.

EFFECT: due to the introduction of a system of stepper motors in along X, Y and Z coordinates into a complex, a precise positioning of sensors of a stand over the area of interest in space is ensured, due to the control of the pressure force of sensors and a set of information channels, the quality of measurement of indicators is improved, due to the joint analysis of signals of electrical impedance, electromyogram, mechanomyogram and ultrasound, the assessment of the level of muscle hypertrophy is provided by analyzing their functional state, strength, stiffness, muscle volume parameters and muscle structure resistance, the accuracy of diagnostics of hypertrophy and atrophy of skeletal muscles is increased, and the possibility of early diagnostics of hypertrophy is achieved by combining methods for the assessment of muscle volume based on data from an ultrasound sensor, an electromyogram and an electrical impedance signal.

2 cl, 10 dwg