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Biomechanics

The Graduate Program in Ergonomics and Biomechanics is physically located at the OIOC (63 Downing Street, New York, NY 10014); a modern laboratory is available for the students at the Hospital for Joint Diseases Orthopaedic Institute (301 East 17th Street, New York, NY 10003). At these locations, the following equipment and instrumentation is available:

  • A Data Acquisition System consisting of a general purpose data acquisition software and a 64-channel multifunction data acquisition board. This system is used to collect and analyze up to 64 channels of data simultaneously at a rate of up to 3100 Hertz.
  • A Triaxial Dynamometer to conduct two- and three-dimensional measurements of relative position, velocity and acceleration of the trunk, and the torque output of the trunk muscles during various physical activities such as flexion-extension, twisting, and side bending. This equipment is used to carry out studies to test the performance, coordination, and recruitment patterns of the trunk muscles during isoinertial movements.
  • A Polhemus 3Space Tracker that utilizes low-frequency magnetic field technology is used to determine position and orientation of moving body segments relative to a source reference frame. This is a six degree of freedom device that is used for motion analysis at and around the various joints of the extremities.
  • A 16-Channel Electromyography (EMG) System to measure and analyze electrical signals generated by muscles. The EMG system is used in conjunction with the dynamometers and enables the investigation of recruitment patterns of muscles and the force output of the muscles during various activities.
  • An Isotechnologies Back Tracker, a portable triaxial electromechanical trunk goniometer, is used to measure trunk movements up to 5 hours in the field.
  • A Bruel and Kjaer Human Vibration Measurement Set is used to measure vibration exposure on the human body. This portable equipment fully complies with the whole-body vibration standard developed by the International Organization for Standardization (ISO). Using this equipment, the OIOC research team has been conducting studies to measure and evaluate vibration exposure experienced by train operators.
In addition, the laboratory is equipped with a Kistler Force Plate and a Natick Pull Test for force, strength, endurance, and performance tests, an analog-digital oscilloscope, a Polar portable heart rate monitor, an Oxylog portable oxygen consumption-measuring device, a sound level meter, a photometer, a thermo-hydrometer, a thermo-anemometer, and video and digital cameras. Also available are software packages for various applications such as the LabVIEW data acquisition and analysis software, MathLab mathematical manipulation data, 2D and 3D Static Strength software, Energy Expenditure Prediction software, and SAS and SPSS statistics analysis. An Isotechnologies Back Tracker, a portable triaxial electromechanical trunk goniometer, is used to measure trunk movements up to 5 hours in the field. (ISO). Using studies to measure and evaluate vibration exposure experienced by train operators.

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