Do these 3 exercises 2-3 times a week, doing each exercise 10-12 times in 2 sets and after just a month you will see the effect.
1. Lie down on your back, knees bent; Take a dumbbell (2-3 kg) and raise it. Strain your stomach and slowly raise yourself up, putting your hands forward. Hold for a couple of seconds and go back to the starting position.
2. Stand exactly, feet shoulder-width apart. Holding the dumbbell in your right hand, lift it up, and grab onto the elbow with your left. Then bend your right arm and straighten again. Repeat the exercise 10-12 times with each hand.
3. Take a position for push-ups on your knees, holding a dumbbell in your left hand. Now take your left hand to the side, hold on for a couple of seconds and go back to the starting position. Repeat the exercise 10-12 times on each side.