General Plank
General Plank is a classic exercise that strengthens your body from head to toe. In particular, the plank helps strengthen your core muscles, including your abdominals and lower back.
Alternating Plate Reach is a great workout that specifically targets core muscles and increases their strength and stability. While performing in an alternative manner, it helps to isolate chest ad shoulder muscles.
General Plank is a classic exercise that strengthens your body from head to toe. In particular, the plank helps strengthen your core muscles, including your abdominals and lower back.
Crunch is a classic core exercise that explicitly trains your abdominal muscles - part of your core. It also includes your oblique muscles on the sides of your trunk and the muscles in your pelvis, lower back, and hips.
Russian Twist strengthens your core, obliques, and spine. It's a total core exercise that also works your balance, builds stability in your spine, and trims your mid-section all at once.