5 Days a week PT is excessive, I had mine done in May, started with gentle walk 100-200 steps and built up gradually to a base of 3000 per day every day over a month, so 2nd month 4000per day and add as you feel comfortable with keeping your 3000 base line, l walk 6000+ easily now, do not carry weights at the beginning, after about a month of walking start adding weights wearing a back pack, I still got inflamed swelling and internal bruising so used Ibuprofen to control it, Walking is the best way to improve your leg strength, you can start adding other exercise's when YOU feel good to it, it can take up to and over a year to get better, so slowly slowly and it will come. Add weights exercise's (Barr Bell, Dumb Bells) when you are ready.