It's not always possible to prevent sciatica, but practicing a few good habits can play a key role in protecting your back.
Exercise in general is good, but Pilates is excellent in helping bring balance to the muscles of the back, hips, and abdominal muscles to realign the body.
Functional exercise improves posture, and good body mechanics, which are important to keep your back strong and healthy and reducing the risk of sciatica.
If you stand for extended periods, rest one foot on a low stool or box from time to time. Pay special attention that your hips stay level when doing this.
When lifting heavy objects, bend at the hips and knees making sure to keeping your spine straight and your abdominal muscles pulled in.
Always hold the load close to your body and avoid lifting and twisting at the same time.
Try to maintain a healthy weight
Sit in an upright correct position