Abstract: A monitoring or tracking system may include an input port and a controller in communication with the input port. The input port may receive data from a data recorder. The data recorder is optionally part of the monitoring system and in some cases includes at least part of the controller. The controller may be configured to receive data via the input port and determine values for one or more dimensions of subject performing a task based on the data and determine a location of a hand of the subject performing the task based on the data. Further, the controller may be configured to determine one or both of trunk angle and trunk kinematics based on the received data. The controller may output via the output port assessment information.

Abstract: A monitoring or tracking system may include an input port and a controller in communication with the input port. The input port may receive data from a data recorder. The data recorder is optionally part of the monitoring system and in some cases includes at least part of the controller. The controller may be configured to receive data via the input port and determine values for one or more dimensions of subject performing a task based on the data and determine a location of a hand of the subject performing the task based on the data. Further, the controller may be configured to determine one or both of trunk angle and trunk kinematics based on the received data. The controller may output via the output port assessment information.

Abstract: Provided herein are systems and methods that use a video content analysis algorithm to measure and quantify repetitive motion activity of a designated body part, including velocity, acceleration, frequency, and duty cycle, without applying sensors or other instrumentation to the body, for the purpose of preventing repetitive motion injuries. In some embodiments, the video-based direct exposure assessment system uses marker-less video and a video content analysis algorithm. The video content analysis algorithm is able to recognize and identify the pattern of repetitive motion, through a process known as cyclic motion analysis. Determination of the cycle pattern provides parameters for determining a body part's activity level, and thereby allows determination of the body part's activity level.