During isometric core exercise, rectus abdominis and external oblique muscle activity are higher when
using posterior pelvic tilt than when using abdominal hollowing, and when using unstable surfaces than when using stable ones.
Not exact matches
Keep a slight
posterior pelvic tilt throughout to make sure you are
using the glutes rather than the lower back.
The gluteus maximus not only is
used in powerful movement that require hip extension (jumping, stair climbing) but it also is a muscle that helps create a
posterior pelvic tilt.
The reduced anterior
pelvic tilt when
using this starting position will most likely explain the superior results for muscle activation, as gluteus maximus EMG amplitude is generally increased by
posterior pelvic tilt in the prone hip extension (Tateuchi et al. 2012; Tateuchi et al. 2013), as in standing (Kim and Seo, 2015).