Featured Ariel Library

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Download our Applications

All our Performance Analysis Applications can be downloaded from our website and evaluated free of charge. Our applications run on Microsoft Windows.

Articles & Scientific Publications

Ariel Dynamics and Dr. Gideon Ariel have been covered extensively in newspapers and magazines. We also published some of our scientific articles and system brochures. Enjoy!

History of Biomechanics

We are part of the history of modern biomechanics. Check out some of the media coverage over the years on ABC, CBS, CNN, ESPN, National Geographic, NBC and more.

Browse. Ariel Library

Feel free to browse the following categories
Name Description
Accuracy The Ariel Performance Analysis System (APAS) is considered the most accurate motion analysis system available.
ACES The Ariel Computerized Exercise System (ACES).
Activities Ariel Dynamics Corporate Activities and Performances
Analog The Analog module is used as a general purpose laboratory data measurement and analysis sub-system. The module is designed to sample, save and present analog signals from many independent channels. A fast measurement rate is possible, with high resolution and programmable input voltage ranges. Data signals are measured to a 12 bit (1 in 4096) resolution. A number of triggering options are provided to assist in the capture of transient data and to allow the synchronization of the analog module with external events. The analog module also includes a set of specialized electromyogram (EMG) signal processing options. EMG data samples can be analyzed using a number of sophisticated techniques including spike analysis, signal rectification and integration, envelope processing and spectral analysis.
APAS The Ariel Performance Analysis System (APAS) is a software application suite for video-based biomechanical analysis. APAS supports both 2D and 3D analysis and includes automatic, semi-automatic, and manual digitizing.
Applications Our Performance Analysis applications can be downloaded from our website and evaluated free of charge. Our applications run on Microsoft Windows.
Archives 3D Motion Captured Data of athletes and other performances in the field and in the lab.
Baseball Performance Analysis and Sports biomechanics in Baseball.
Biomechanics Biomechanics is the study of the structure and function of biological systems by means of the methods of mechanics. which is the branch of physics involving analysis of the actions of forces. Within mechanics there are two sub-fields of study: statics, which is the study of systems that are in a state of constant motion either at rest (with no motion) or moving with a constant velocity; and dynamics, which is the study of systems in motion in which acceleration is present, which may involve kinematics (the study of the motion of bodies with respect to time, displacement, velocity, and speed of movement either in a straight line or in a rotary direction) and kinetics (the study of the forces associated with motion, including forces causing motion and forces resulting from motion)
Books Books that are only available online.
Brochures Brochures of our products and services over time.
Capture Simultaneously captures digital video in digital format directly to hard disk. Up to 9 cameras can be used simultaneously on one or multiple computers.
Deprecated Warning: the following information is no longer being actively maintained.
Diagrams Wiring diagrams for our products.
Digitize Digitizing is the first step for analysis after the recorded images have been captured and stored on the hard disk of the computer. The Digitize module is a Windows based program for digitizing images to be analyzed using the Ariel Performance Analysis System (APAS). Digitizing can be performed in one of two modes, either Manual or Automatic. Manual digitizing is performed under computer control and the digitizing of video images is computer assisted. A trained operator with a reasonable knowledge of anatomy and a consistent pattern of digitizing can rapidly produce high-quality digitized images. Automatic digitizing requires some sort of visible markers. User input is minimal as the computer automatically tracks the markers based on color, contrast, position, velocity and acceleration.
Discus Performance analysis and sports biomechanics in the discus.
DLT Direct linear transformation (DLT) is an algorithm which solves a set of variables from a set of similarity relations:
Documentation Standard documentation related to our products.
Downloads The following files can be downloaded directly to your device. Don't hesitate to contact us should you require additional information.
Dynamometer The Resistive Exercise Dynamometer is a computerized, feedback-controlled, portable, battery-powered, hydraulic dynamometer which can be used in normal, reduced-g, and zero-g environments. The device provides a closed-loop feedback system to measure and control various muscular strength parameters.
EMG Electromyography (EMG) is a technique for evaluating and recording the electrical activity produced by skeletal muscles. EMG is performed using an instrument called an electromyograph, to produce a record called an electromyogram. An electromyograph detects the electrical potential generated by muscle cells when these cells are electrically or neurologically activated. The signals can be analyzed to detect medical abnormalities, activation level, recruitment order or to analyze the biomechanics of human or animal movement.
Exercise Machine The Ariel Computerized Exercise System is the most unique system and advanced technology on the market today. The personal computer approach to the practice of resistance exercise is a quantum change in both thinking and application. The "artificial intelligence" in the technology puts resistance exercise into a broad new realm of possibilities for physical conditioning, sports training, rehabilitation, medical evaluation, research and executive fitness.
FAQ Consult our database to find the answers you are looking for.
Favorite Some of our personal favorites.
Filter APAS/Filter is used to remove small random digitizing errors or "noise" from the transformed image sequence. The digitizing process involves measuring the location of each body joint. As with any type of measurement, there is no correct value, only an estimate to some known level of accuracy. Therefore, each measurement consists of two parts: the actual or true value, plus an error value due to the inability to perform exact measurements. This module will improve digitized joint locations by minimizing the effect of the errors made during the analysis process. In addition to the displacement curves, it can display velocity and acceleration curves for each component. By viewing the acceleration curves, the extent of random error remaining in the data can more easily be determined.
Force Plate Force platforms or force plates are measuring instruments that measure the ground reaction forces generated by a body standing on or moving across them, to quantify balance, gait and other parameters of biomechanics. Most common areas of application are medicine and sports.
Gait APAS/Gait is an add-on module to the APAS System. It allows full-fledged gait analyses using industry-standard marker sets. It is a video-based system for the most accurate kinematics analyses in the industry, and optionally uses input from force plates for inverse dynamics analyses. APAS/Gait generates standard charts and standard analysis reports with a click of a button. APAS/Gait uses 3-dimensional rendering of the kinematic data in real-time; this allows you to visually validate anything you are doing. If you inadvertently input a wrong anthropometric measure, or if your data contains errors of any kind, you will be able to spot this immediately in the 3D display.
General Selected highlights from our database
Golf Performance Analysis and Sports biomechanics in Golf.
Help Browse our library to find the help you are looking for.
History Library of historic pages.
Horses Applied biomechanics in Horse Analysis.
Journal In academic publishing, a scientific journal is a periodical publication intended to further the progress of science, usually by reporting new research. Scientific journals contain articles that have been peer reviewed, in an attempt to ensure that articles meet the journal's standards of quality, and scientific validity.
KB Knowledge Base
Legal Example application of our products in the legal field.
Main Historical Archives published on previous versions of our website.
Media We are part of the history of modern biomechanics. Check out some of the media coverage over the years on ABC, CBS, CNN, ESPN, National Geographic, NBC and more. Shows are hosted by David Letterman, Tom Brokaw, and many others...
NASA The National Aeronautics and Space Administration (NASA) is the agency of the United States government that is responsible for the nation's civilian space program and for aeronautics and aerospace research. Dr. Gideon Ariel and Ariel Dynamics have contributed to multiple research projects in space.
Olympics Dr. Gideon Ariel is a former Olympic athlete, participating in the Olympcs of Rome and Tokyo. As founding Chairman of the U.S. Olympic Biomechanics Committee, Dr. Ariel instituted the first U.S. Olympic Training Center dedicated to the preparation of Olympic level athletes.
Performance Analysis The Ariel Performance Analysis System (APAS) is a video-based 3D motion analysis system. APAS can capture video from multiple cameras simultaneously and perform a biomechanical analysis automatically.
Personal Personal area of Gideon Ariel
Photographs Personal photo albums over the years.
Presentations Some PowerPoint presentations. Show or play the presentations in the online viewer, or download the original files directly to your device.
Quaternions Our applications make extensive use of quaternions. In mathematics, the quaternions are a number system that extends the complex numbers. Quaternions find uses in both theoretical and applied mathematics, in particular for calculations involving three-dimensional rotations such as in three-dimensional computer graphics and computer vision. They can be used alongside other methods, such as Euler angles and rotation matrices, or as an alternative to them depending on the application.
Renderer APAS/Renderer is an add-on module to the APAS System that lets you render 3-dimensional kinematic data in real-time. This module is a valuable addition to standard "stick figure" displays because rendered 3D models can convey more information about segment orientations than stick figures.
Science Science (from Latin scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe. It is the foundation of all we do.
Shoes Dr. Gideon Ariel introduced the first "Air Shoe" (1970)
Shotput Performance analysis and sports biomechanics in the shotput.
Space We have worked on numerous projects in normal, reduced-g, and zero-g environments.
Sports Sports Biomechanics is a quantitative based study and analysis of professional athletes and sports' activities in general. It can simply be described as the Physics of Sports. In this subfield of biomechanics the laws of mechanics are applied in order to gain a greater understanding of athletic performance through mathematical modeling, computer simulation and measurement. Biomechanics is the study of the structure and function of biological systems by means of the methods of mechanics. which is the branch of physics involving analysis of the actions of forces.
Steroids Anabolic steroids, technically known as anabolic-androgen steroids (AAS) or colloquially as "steroids" (or even "roids"), are drugs that mimic the effects of testosterone and dihydrotestosterone in the body. Uses of anabolic steroids in sports are controversial because of their adverse effects and the potential to gain an advantage conventionally considered "cheating."
Studies A collection of independent Studies. Ariel Dynamics is not responsible for the content of the following materials.
Tennis Performance Analysis and Sports biomechanics in Tennis.
Topics Historical Archives published on previous versions of our website.
Track and Field Performance Analysis and Sports biomechanics in Track and Field.
Transform Transform digitized coordinates utilizing DLT or PPT algorithms.
Tutorials Learn to use our applications by following our tutorials.
Volleyball Performance Analysis and Sports biomechanics in Volleyball.
Wizard APAS/Wizard includes predefined and user-adjustable templates for various activities in sports and rehabilitation to guide the user through analysis and data display.