THE STUDY OF RISING MOTION

SHINGUU Toshiya

doi:10.14930/jsma1939.61.233

To have a better understanding of instructions and environmental surroundings appropriate for patients, we analyzed rising motions. Methods : In experiment 1 (20 males and 23 females aged 25-85 years), motions from the bed and the floor were classified. In experiment 2 (6 males), 5 characteristic motions were evaluated on surface electromyograms. Bipolar lead electromyograms of 7muscles were recorded. In experiment 3 (6 males), the movement of the trunk during the same motions was measured using a 3SPACE-WIN (POLHEMUS) . With 3 terminals fixed in the 1st thoracic vertebra, 5th lumbar vertebra, and the sacral spine, the spinal flexion angle in the 5th lumbar vertebra and the spinal rotation angle in the 1st thoracic vertebra were measured. Results : In experiment 1, sitting-up motions on a bed and standing-up motions were classified into 3 types each. Sitting-up motions and standing-up motions from the floor were also classified into 3 types each. The type of motion differed according to age. In experiment 2, 5 characteristic motions were studied. The duration and the order of muscle contraction differed. In experiment 3, the same 5 motions as those observed in experiment 2 were evaluated. The flexion angle did not significantly differ between the motions. The rotation angle was significantly different between the motions from the bed as well as between those from the floor. Discussion: The types of muscles used were similar among the motions, but the duration of contraction differed, suggesting that there are methods with high motion efficiency. For the spinal flexion angle, 25-35? is necessary, and for the spinal rotation angle, 25-40? is necessary. Since there were characteristic age-related motions, a recommended type of motion may not necessarily be the easiest motion for the patient.

THE STUDY OF RISING MOTION

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