Posture: Stand upright with your feet together and your arms extended outward to the sides.
Exercise: With your arms held steady in a horizontal position, bend your upper body to the left as far as possible, then gradually return to the starting position. Repeat the movement by bending to the right. Start with five repetitions on each side. As you perform this exercise, ensure your arms remain aligned and do not shift upward or downward. Additionally, avoid leaning forward or backward, maintaining a straight posture. Aim to stretch deeply enough so that your hand touches your calf when bending. Afterward, repeat the exercise with your feet positioned two feet apart, completing five repetitions to start.