side plank

plural side planks

1. yogaA yoga pose in which the body is held rigidly straight, with weight resting on the feet and one arm, where the upper body is held off the ground by the upper arm, leaving the lower portion of the arm on the ground.

   Start by performing a side plank with your right side down.

   2014, Adam Campbell, The Men's Health Little Book of Exercises, page 153

   2 more examples

   Side plank is commonly used in yoga classes as a pose to develop core strength, especially in the side body and obliques.

   2015, Jennifer DeCurtins, The Complete Guide to Yoga Inversions, page 24

   Side plank and kneeling side plank target the oblique abdominal muscles, the two layers of muscle in your torso that work together to help you exhale, side bend, and twist.

   2015, Beth Shaw, Beth Shaw's YogaFit, page 55

2. Used other than figuratively or idiomatically: see side, plank. A plank on the side of something.