A device or a system for measuring muscle signals. A system may include at least one processor, memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the system to perform at least the following: measure a signal from a muscle to obtain a muscle activation signal; carry out at least one transform on the muscle activation signal to obtain a muscle activation spectrum; and determine a muscle state indicator from the muscle activation spectrum by using signal characteristics from a first and a second band of the muscle activation spectrum.

The invention is directed to a novel method for measuring contraction characteristics of engineered heart tissue constructs (16) which is based on the mechanical coupling of the construct (16) to a support element (8) which comprises or is mechanically coupled to a piezoelectric element (10). An apparatus (1) for carrying out the method of the invention is also provided.

A muscular strength assisting apparatus may include: a wearing unit configured to enclose a part of a user's body; a tightening unit configured to pull the wearing unit in one or both directions; and/or a control unit configured to drive the tightening unit to tighten the part of the user's body on which the wearing unit is located, when it is determined that muscular contraction occurs at the part of the user's body on which the wearing unit is located. A method of controlling a muscular strength assisting apparatus may include: determining whether muscular contraction occurs at a part of a user's body that is enclosed by a wearing unit; and/or driving a tightening unit pulling the wearing unit in one direction or both directions to tighten the part of the user's body on which the wearing unit is located when it is determined that the muscular contraction occurs.

A device or a system for measuring muscle signals. A system may include at least one processor, memory including computer program code, the memory and the computer program code configured to, with the at least one processor, cause the system to perform at least the following: measure a signal from a muscle to obtain a muscle activation signal; carry out at least one transform on the muscle activation signal to obtain a muscle activation spectrum; and determine a muscle state indicator from the muscle activation spectrum by using signal characteristics from a first and a second band of the muscle activation spectrum.

An arrangement for electromagnetic radiation based non-invasive monitoring of an anatomic object during an operation includes at least one imaging device for obtaining at least two or more images of at least one surface point on a surface of the anatomic object over at least one fraction of a characteristic movement cycle from the surface of the anatomic object. In addition the arrangement includes an output for a display device or the display device, and a control unit for determining deformation based on movements of the at least one surface point over the at least one fraction of the cycle between the at least two or more images of the surface of the heart in function of time. Further changes in the deformation is determined or determined deformation is compared to reference deformation values to find any deviation in the performance or state of the deformation determined.

A muscle spasticity measurement system and sensor comprise a housing having a flexible wall and a constraining wall defining a cavity. A piezoelectric device is disposed in the cavity between an actuating bag and the flexible wall. The piezoelectric device is coupled to the housing substantially via an interior face of the flexible wall. The actuating bag is configured to be pneumatically operable. The actuating bag in an inflated state is constrainable by the housing to press an exterior face of the flexible wall against a body part of the subject.

A biomedical implant includes a wall enclosing at least a portion of the implant. The wall includes a first stratum and a second stratum conformal with the first stratum. An interlayer is provided between the first and the second strata, and includes a structure that produces capillary pressure in an infiltrating fluid in response to rupture of the first stratum or the second stratum resulting in entry of the infiltrating fluid into the interlayer. A detector is exposed to the interlayer and configured to detect a presence, if any, of the infiltrating fluid and output a detection state indicator. A communication circuit is communicatively coupled to the detector and configured to communicate the detection state indicator to a reader external to the patient.

A robotic shoe which provides real-time feedback regarding forces acting on the foot of the user, in order to modify these forces in a corrective or diagnostic manner. The shoe comprises an insole equipped with embedded pressure sensors enabling it to continuously monitor the ground reaction forces (GRF) and the foot center of pressure (COP) while the user is standing, walking, and running. The insole COP and GRF readings are input to a programmable system that shifts the COP trajectory dynamically in a patient-specific manner via the robotic platform of the shoe. The robotic platform contains motors that control elements whose movement manipulates the forces acting on the foot and lower limb, resulting in modification of the GRF. Closed loop feedback enables a dynamic fit of an optimal COP. The COP and GRF information can be stored for analysis and diagnosis of gait and instability events accruing during locomotion.

Method and apparatus for estimating bio-impedance at electrode-electrolyte interface by injecting a single low-intensity bi-phasic current stimulus having an selected inter-pulse delay first and second current pulse phases, which involves acquiring transient electrode voltage along the bi-phasic current stimulus waveform. Determining equivalent circuit parameters of an electrode, at the electrode-electrolyte/tissue interface, based on transient electrode voltage across said multiple temporal locations is also performed.

Disclosed is a method of correcting distortion of a psychological test using a user's biometric data. By using the method of correcting distortion of a psychological test, it is possible to correct a score of a user who makes response distortion and provide a better selection that meets the objective of the psychological test. Also, it is also possible to train an item with a response instinctually distorted by the user through an analysis of result data of the psychological test training program, thus decreasing the response distortion of the user.