Muscle activation pattern of deltoid muscles during Adho Mukha Vrksasana

Introduction: While performing Adho Mukha Vrksasana, deltoid muscles plays a great role. But there is no study has been done regarding among the three deltoid muscles which deltoid muscles is contributing more or less while performing Adho Mukha Vrksasana Objective: This study compared the muscle activation pattern of the deltoid muscles while performing Adho Mukha Vrksasana. Methodology: Thirty (N=30) male yoga practitioners were selected with mean age (21.4 ± 1.85), height (165.2 ± 2.3 cm), and weight (61.2 ± 4.6 kg), were selected for the study. A videography technique was employed, later processed using Kinovea 2D motion analysis software to calculate the angle of the neck (in degrees) and height (in cm) of the center of gravity (CG). cordless electromyography (EMG) was used, to compare muscle activity responses of all the selected deltoid muscles, ANOVA was used at a 0.05 level of significance. Results: There was a significant difference among the selected deltoid muscles while performing the Adho Mukha Vrksasana, i.e., F = 84.887; P ≤ 0.05. The medial deltoid muscles was most significantly better, followed by the posterior deltoid muscles, and the least was anterior deltoid muscles. The average height of the center of gravity was 95.86 cm, and the average angle of the neck was 103.66°. Discussion: The previous study shows the significant contribution of lateral (medial) deltoid muscle while performing Adho Mukha Vrksasana Conclusions: The mean angle of the neck was found to be 103.66°. The mean height of CG was reported to be 95.864 cm, and average muscle activation of each of the three deltoid muscles was not equal to the mean 41% of the medial deltoid, 32% of the posterior deltoid, and 27% of the anterior deltoid.