[Seagull plank] mainly exercises abdominal muscles.
Action points: Start from the ordinary plank support movement. First open one arm to the side of the body, with the palm facing down into a sideways lift, and then stretch it forward. The whole process Use only your other arm to keep your balance.
After the movement is completed, do the same movement with the other arm.
Ideal number of groups: 10 times/group, do 3 to 5 groups.
