Fitness di is a kind of exercise, which can exercise the back and thighs. To do this, breathe in when squatting and exhale when standing up. The specific operation steps are as follows:

1, feet shoulder width apart.

2. Kneel down and hold the dumbbell with both hands.

3. Keep your back straight and your hands vertical.

4. Squat with weight until the dumbbell is close to the ground.

5. Stand up slowly after holding on to 1 sec, and replace explosive force with strength.