Contractures of feet & arms at elbows

My mother is 88 years old Alzheimer/ persistent bladder infection woman, who is wheelchair bound with little activity.
Hospice workers have used massage and have provided 1 structured boot and cotton strap for her contracted feet. To be worn during the day only.
This has recently happened in past 3 weeks.They say no more PT will help. I think other forms of heat, near infrared and upper leg massage and more could be of help. I am interested in your comment.Thanking you in advance.Thoughtful Daughter