How to ride an power wheelchair correctly?

The leg position should be appropriate:
Inappropriate height or angle of the power wheelchair footrests can cause leg pain and transfer of pressure to the hips. When sitting in an electric wheelchair, the angle between the calf and the thigh is slightly greater than 90 degrees, otherwise the leg will be sore when sitting for a long time, and the blood circulation will also be affected. The adjustment of the electric wheelchair pedal height should be appropriate.
Place your hips as close as possible to the power wheelchair backrest:
If some elderly people can't get close to their backs, the lower back can bend and slide out of the power wheelchair. Therefore, depending on the individual situation, it is more comfortable to choose a wheelchair with an "S" seat design or an electric wheelchair.
Is the pelvis balanced:
Pelvic tilt is an important factor in scoliosis deformation. Pelvic rolling is caused by poor deformation of wheelchair seat cushions and electric wheelchairs. Therefore, the material of the seat back cushion is crucial when choosing a wheelchair electric wheelchair. You can observe that many cheap wheelchairs have the rear pads turned into grooves after three months of riding. Long-term use of such a wheelchair or electric wheelchair will inevitably lead to scoliosis, hunchback, and the like.
Upper body and head posture fixed:

In some patients, a power wheelchair with a high backrest and adjustable backrest angle may be used if the upper torso of the upper body cannot maintain a correct sitting position. For the elderly and disabled (such as cerebral palsy, high paraplegia, etc.) who have difficulty balancing and controlling the trunk, a headrest, fixed sitting position, such as a belt and chest strap, is used to avoid spinal deformation. If the torso of the upper body is hunched forward, use a double cross chest strap or H-strap to secure it.