Abstract
Computergraphical analysis for contraction and relaxation pattern of the latissimus dorsi muscle was performed in experimental study. Five mongrel dogs anesthetized for the preparation of left latissimus dorsi muscle. Pacing electrodes were installed into the muscle and stimulated by CMS (Telectronics) with 2.5V/0.25msec/60ppm. The ratio of muscle constriction was caluculated by measuring of area, and longitudinal and transectional lenghth in systolic and diastolic phase. In conclusion, proximal 1/3 of total muscle lenght showed good constriction, however, constriction of peripheral 1/3 was poor and significant diference was obtained between contraction of proximal and distal portion of the muscle.
