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KMID : 1012020140030010069
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Physical Therapy Rehabilitation Science
2014 Volume.3 No. 1 p.69 ~ p.75
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Kinematic analysis of rowing exercise using a motor-assisted rowing machine for rowers with spinal cord injury: a case report
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Jeong Ju-Ri
Lee Bum-Suk
Park Dae-Sung
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Abstract
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Objective: We developed a Motor-Assisted Rowing Machine (MARM) for Spinal Cord Injury (SCI), by modification of the Concept II rowing machine, so that the seats could be operated automatically in a backward and forward direction by a motor.
Design: Case report.
Methods: Motor rowing consisted of a chair with inclination control, a motor system, control button, monitor, program, leg supporter, safety belt, and seat. The patients were 2 men rowing athletes with SCI, classified as American Spinal Injury Association class B, participated in the study. Level of thoracic injury ranged from T8 to T10. The subjects rowed at a self-selected stroke rate with 50 watts. Two different rowing methods (static rowing without movementof the seat, dynamic rowing using MARM) were assigned to each participant during 10 minutes; 34 reflective markers were attached to their full bodies. Kinematic data were collected using the Vicon motion analysis system. Based on the full body model provided as a default by the equipment. In the rowing exercise, the rowing motions were divided into Drive Phase and Recovery Phase.
Results: The two rowing methods differ in handle range, seat range, handle and seat ratio, handle velocity, and seat velocity during static and dynamic rowing. The rowing exercise using a rowing machine developed MARM increased tendency to the range of motion in the dynamic method compared to the static method.
Conclusions: The newly developed MARM could be a useful whole body exercise for people with SCI.
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KEYWORD
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Ergometer, Motion analysis, Rowing, Spinal cord injury
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