Postural supports in wheelchairs are important to ensure proper positioning and function. Examples of postural supports include the seat, backrest, footrests, and armrests. A client-centered approach involving the client, caregivers, and therapist is important for selecting the appropriate wheelchair and seating system. Proper positioning can reduce complications like pressure sores and respiratory issues by supporting the trunk and allowing for full expansion of the lungs. Armrests in particular can assist with more efficient breathing by keeping the arms in a closed-chain position.