You have the choice 3 types of cardio which You can try. The first is Low impact steady state (LISS)- 30 minute steady jogging or walking or very slowly. The second is Steady cardio- exercises between LISS and HIIT- 20 minute jogging or 30 seconds Lighter sprints. The third of them is High intensity interval training (HIIT)- 15 seconds max sprint or uphill sprints.