Hi There, I Am A Certified Personal Trainer And Have

Hi there, I am a certified personal trainer and have recently been approached by a someone who would like to train with me. The person stated they suffered an MI and subsequently now have 5 stents. This was post-one year. They are well currently with no issues, they follow with their physician regularly but have no exercise in their daily routine...that's where I come in. My question is can someone who has had angioplasty weight train specifically the chest? Next how aggressive can the cardio be? Thank you for your time.