Yes, Ashtanga Namaskara can be modified to accommodate different needs and limitations. For those with neck problems, the chin can be placed on a block or cushion instead of directly on the floor. If you have wrist pain, you can use yoga blocks or place your fists on the floor instead of the palms. It is important to listen to your body and avoid this pose if you have lower back pain or any other injuries or conditions that may be aggravated by the pose.