Is It Advisable To Exercise Post Open Inguinal Surgery?

Good afternoon, I m a 43 year old male who had open inguinal surgery 4 weeks ago. My doctor said it was a textbook surgery. I feel great, and I m wondering when I can start working out again. I m not into lifting heavy weights. I do a lot of High Intensity Interval Training, take Spin classes a few days a week, and before the surgery I did 500 pushups a day. I also ride horses. My biggest concern is the horseback riding. Any thoughts? Thank you. Robert