Fig. 4

Means and standard deviations for onset time of postural muscle activation relative to onset of anterior deltoid (AD). ES erector spinae, BF biceps femoris, GcM gastrocnemius. *p < 0.05, **p < 0.01, ***p < 0.001. † Significant differences between burst onsets of AD and each postural muscle (p < 0.05)