converting footrest from manual to power?

The La-Z- Boy chair my 89 year old Mother has is equipped with heat, massagers etc. The foot lift is manual. We tried a longer handle. Each time she tries to put the foot lift down, she falls out of the chair because she no longer has the strength in her shoulders. Can this footrest be converted to a power one?
The chair is in very good working condition. We are hopeful this can be wired into the chair.