Abstract
This paper introduces the design of a haptic-based resistance training machine and deals with the details of a control scheme for biceps exercises. The developed training machine has three components: 1) Machine hardware; 2) Impedance control based resistance generator; and 3) User interface. It can enable various resistance trainings considering the biomechanical behavior of individual user. That is, in contrast to conventional exercise machines, it can easily generate two-dimensional exercise motions and resistance profiles with respect to an individual’s musculoskeletal characteristics. This feature can help users to easily execute an arbitrary exercise pattern that can maximize exercise performance. We choose the biceps exercise as its first application and implement an impedance control scheme for executing the newly suggested exercise protocol. Details of the experimental results are included for verification.
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Abbreviations
- z :
-
vertical direction of the resistance training machine
- x :
-
horizontal direction of the resistance training machine
- PDET :
-
Pre-Defined Exercise Trajectory
- F user :
-
external force exerted on the training machine by user
- F t (x, z):
-
tangential force component to the PDET
- F n (x, z):
-
normal force component to the PDET
- v t (x, z):
-
tangential direction velocity to the PDET
- β n (x, z):
-
damping coefficient in normal direction to the PDET
- k n (x, z):
-
stiffness coefficient in normal direction to the PDET
- β t (x, z):
-
damping coefficient in tangential direction to the PDET
- K p , K I , K V :
-
proportional, integral, derivative gains of controller, respectively
- F u :
-
control input to the controller
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Park, J., Kim, K. & Hong, D. Haptic-based resistance training machine and its application to biceps exercises. Int. J. Precis. Eng. Manuf. 12, 21–30 (2011). https://doi.org/10.1007/s12541-011-0003-1
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DOI: https://doi.org/10.1007/s12541-011-0003-1