Mermaid line exercise method: One action will help you complete it
Sit on the edge of the bed, lean back slightly, put your hands behind you, keep your back straight; contract your abdominal muscles and lift your legs to a 45° angle (Figure A).
Keeping your abdomen strong and your buttocks still, open your legs parallel to both sides like scissors, then your left leg goes up to the right, and your right leg goes down to the left(Picture B) ;
Restore the legs to be parallel, with the left leg pointing downward to the right and the right leg crossing upward to the left (Figure C). Do 3 sets of 20 times each next day, resting for one minute between sets.
