8 Best Office Exercises to Stay Active When Sitting All Day

5. Seated knee lifts.

Crossing your legs for long periods can lead to poor posture and circulation issues. Instead, try these exercises whenever you feel the urge to cross your legs.

• Seat yourself comfortably on a solid chair, with your back straight and unsupported. Keep your feet planted about hip-width apart.
• Gently grip the chair seat under your thighs if this feels more comfortable for you.
• When ready, keeping your back straight, lift one knee, bringing it towards your chest.
• Continue to lift until your foot is elevated about 6–10 inches from the ground (unless instructed otherwise) before slowly lowering back down to the starting position.