Effect of Resistance Training Maintaining the Joint Angle-torque Profile Using a Haptic-based Machine on Shoulder Internal and External Rotation.
[Purpose] The aim of this study was to present an individualized resistance training method to enable exercise while maintaining an exercise load that is set according to an individual's joint angle-torque using a haptic-based resistance training machine. [Methods] Five participants (machine group) performed individualized shoulder internal and external rotation training with a haptic resistance training machine, while another five participants performed general dumbbell-based shoulder internal and external rotation training for eight weeks. Internal and external rotation powers of subjects were measured using an isokinetic machine before and after training. [Results] The average powers of both shoulder internal and external rotation has been improved after training (25.72%, 13.62%). The improvement in power of external rotation in the machine group was significantly higher than that in the control group. [Conclusion] This study proposes a haptic-based individualized rotator cuff muscle training method. The training protocol maintaining the joint angle-torque profile showed better improvement of shoulder internal/external rotation than dumbbell training.
Human Centered CAD Laboratory, School of Mechanical and Aerospace Engineering, Seoul National University, Republic of Korea.
Yeonghun
Y
Kim
Human Centered CAD Laboratory, School of Mechanical and Aerospace Engineering, Seoul National University, Republic of Korea.
Kunwoo
K
Lee
Biomechanics Laboratory, Department of Physical Education, Seoul National University, Republic of Korea.
Jeheon
J
Moon
Biomechanics Laboratory, Department of Physical Education, Seoul National University, Republic of Korea ; Korea National Rehabilitation Center Research Institute, Department of Rehabilitation and Assistive Technology, Republic of Korea.
Dohoon
D
Koo
Mechatronics and Field Robotics Laboratory, Department of Mechanical Engineering, Korea University, Republic of Korea.
Jaewoo
J
Park
Mechatronics and Field Robotics Laboratory, Department of Mechanical Engineering, Korea University, Republic of Korea.
Kyengnam
K
Kim
Mechatronics and Field Robotics Laboratory, Department of Mechanical Engineering, Korea University, Republic of Korea.
Daehie
D
Hong
Biomechanics Laboratory, Department of Physical Education, Seoul National University, Republic of Korea.
Inshik
I
Shin
Haptic machine; Rotator cuff