The AnyBody Modeling System - AnyBody Technology

The AnyBody Modeling System is a State-of-the-Art musculoskeletal modeling and simulation software for biomechanical analysis. The AnyBody Modeling System allows you to create full body detailed musculoskeletal models and simulate internal body loads as e.g., muscle activity, muscle forces and joint reaction forces.

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Features of the AnyBody Modeling System

Includes the AnyBody Managed Model Repository
Musculoskeletal analysis of daily activities
Self-contained and robust system
GUI for interactive use
Inverse dynamics
Inverse-Inverse dynamics
Force-dependent kinematics
Posture and motion prediction
Supports physiological load cases for Finite Element Analysis
Interface to motion capture systems (C3D and BVH)
Interfaces to anthropometric databases
Supports anthropometric model scaling
Console for batch processing

See detailed feature list

See release notes

Why Musculoskeletal Modeling?

Musculoskeletal modeling is a computational way to investigate the mechanical functions of the living body.

Musculoskeletal models output loading in all muscles, joints, and potentially other tissue of the body, as well as potential derived quantities targeting for instance loading of devices, ergonomic analysis, human performance in sports, and the development of cutting-edge designs. Augment laboratory and field studies with biomechanical analyses and use simulation studies as in-silico evidence of the efficacy and safety of your device.

Simulation can make qualified estimation of properties inside the body, which are mostly impossible and unethical to measure – Simulation is the only alternative.

For the exact same reason comprehensive validation can be difficult, but we, together with our many closer users and partners, are striving to provide the best possible verification and validity indicators of our distributed models – see our comprehensive publication list and webcast library.

Benefits of AnyBody simulations

Virtual prototyping and simulation driven product development
Shorter time-to-market, reduced research cost and less testing
Increased product performance and reliability
Crucial insights into biomechanical parameters of the human body
New products and devices virtually tested across numerous body sizes and body shapes.
Better product ergonomics with product design evaluation and optimization
Ergonomic analyses and documentation

AnyBody Modeling System detailed feature list

Graphical User Interface (GUI): GUI for interactive use. Read More

AnyScript Editor Window: A text editor for writing AnyScript code and modifying the model.
Model View: 3D representation of the model.
Chart View: Provides the option to review and display simulation results as two-dimensional line plots and/or three-dimensional surface plots.
Model Tree View: Representation of the organizational structure of model.
Log Window: Information window with errors, warnings, and other status messages.
Progress Window: Displays information about the running operation progress.
Information Window: Displays the properties of the objects selected in the Model Tree.

AnyScript: Object-oriented programming language. Read More

AnyScript is the modeling language used within the AnyBody Modeling System. It is an object-oriented programming language specially designed for describing the workings of the human body and its interactions with environmental objects such as exoskeletons, sports equipment, workplaces etc.

Full-body Human Model: Fully customizable body models which combine for a highly detailed full-body model. Read More

the AnyBody Managed Model Repository (AMMR).

Modeling of mechanical elements: Simple mechanical systems using segments, joins, drivers, kinematic measures, and forces. Read More

Segments: Representation of bones and other rigid elements of models.
Joints: Used to connect segments and allow them to articulate with respect to each other.
Drivers: Specification of the movement the model should perform and optionally provide power input as motors.
Kinematic Measures: Abstraction representation of kinematical constraints.
Forces: Forces applied to the model.

Muscle modeling: AMS comes with several muscle models; simple, three-element, two-element, and custom user-defined models. Read More

The muscle models allow the user to specify muscle parameters as e.g., isometric strength, volume, PCSA, fiber length, kinematic measures (e.g., actual fiber length and velocity), and time.

Muscle calibration routines: Built in system to calibrate muscle tendon/fiber length parameters after anthropometric scaling of the model.

Embedded Chart View: AMS has an embedded chart view that allows you to review of analysis results e.g., individual muscle activity and joint reaction forces and get a graphical representation of the same.

Kinematic Analysis: Determines the position, velocity, and acceleration of segments and joints. Read More

AMS handles closed kinematic chains which, in biomechanics, occur very frequently, for instance in bicycling, gait, and whenever the model grabs something with both hands.

Inverse Dynamics: AMS comes with inbuilt solvers for computing of forces and moments based on kinematics of the human body.

Inverse-Inverse Dynamics

Force Dependent Kinematics (FDK): FDK allows the user to alter motion in a joint depending on the acting forces from muscles, ligaments, surfaces, etc. Read More

FDK is particularly useful for modeling non-conforming joints and has important applications for other types of models too.

Muscle Recruitment Algorithms: AMS allows access to the use of various muscle recruitment algorithms as linear, quadratic, polynomial and max/min muscle recruitment algorithm.

Interface to marker based optical motion capture systems: Interface to use motion data from marker based optical motion capture systems as e.g., Qualisys or Vicon. Read More

The motion data can be used as input in the form of .c3d files. The AMMR including various motion capture examples as e.g., a human gait model.

Interface to IMU motion capture systems: Interface to use motion data from inertial measurement unit motion capture systems as e.g., Xsens. Read More

The motion data can be used as input in the form of .bvh files. The AMMR includes various motion capture examples e.g., human gait models and box lifting tasks.

AnyBody Exporter for SolidWorks: Add-in enabling users to export CAD models to AMS in the form of editable AnyScript code. Read More

The SolidWorks exporter includes all mass properties, initial positions, and geometry information of all individual parts in CAD assembly. This can be integrated into a model and connected with the AMMR human model.

Support physiological load cases for finite element analysis: Forces and segments from a model in AMS can be exported to provide the boundary conditions of a finite element model. Special interfaces are available for ANSYS and Abaqus.

Interface to anthropometric databases

Model scaling: The Human Model is adaptable to sizes and anatomy of various individuals which is useful for product design and to be used for applications, where high geometric accuracy is required, e.g., surface articulations and patient-specific pre-operative planning. Read More

General methods for scaling of musculoskeletal models are already implemented in the AMMR. It allows the usage of built-in, user-defined anthropometric scaling laws as well as individual segment morphing.

Ground Reaction Force Prediction: Motion capture data is often recorded without force plates. In traditional inverse dynamics, this would make it impossible to perform a dynamic analysis. However, AMS has the possibility to predict ground reaction forces (GRF), so you can make inverse dynamics models based on recorded motion without GRF force measurement.

Posture and Motion prediction