各種姿勢変化時の筋電図積分値と酸素摂取量との関係について

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The purpose of this study was to observe the effect of body position on the integrated electromyographical activity concern with oxygen uptake during bicycle exercise. Six male subjects, 19-30 aged, were programed 5 minutes bicycling in the every three different body positions; sitting position, horizontal supine position, supine with legs 45 degree up position, (hereafter refered to as sitting, horizontal, and supine.) Thirty minutes pause were inserted among submaximaximal exercises. 1) Oxygen uptake increased with an increased work load, It was observed oxygen uptake on supine and horizontal positions were higher than that on sitting position at the work intenity of 720 kpm/min. 2) It was found the linear relationship between oxygen uptake and integrated electromyography in all muscle groups except m. gstrocnemius and m. tibialis anterior on supine position ; Sitting [m. rectus femoris r=0.526 (p<0.05), m. biceps femoris r=0.600 (p<0.01) , and m. tibialis anterior r=0.490 (p<0.05)=, horizontal [m. rectus femoris r=0.518 (p<0.05), m. biceps femoris r=0.503 (p<0.05), and m. tibialis anterior r=0.493 (p<0.05)=, and supine [m. rectus femoris r=0.550 (p<0.05), and m. biceps femoris r=0.485 (p<0.05)]3) Integrated electromyography×muscle volume ( EMV) in every muscle group was increased with a increased oxygen uptake in the three different postures. 4) Integrated electromyography of m. gastrocnemius showed higher magnitude at the position of supine and horizontal than at sitting. However, integrated electomyography from other three muscle groups showed similar values at the every three different body positions. 5) No difference in total EMV (total magnitude of EMV obtained from four muscle groups) was observed at a given oxygen uptake when the three different body positions were compared.
中京大学の論文
1976-06-01

各種姿勢変化時の筋電図積分値と酸素摂取量との関係について

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