@victoriaa -I understand your desire to get back to moving and doing things, but you have only been out from surgery about 11 -12 weeks. For that kind of surgery, a lot went on in your insides. I don’t think it’s a good idea, yet, to go on a rowing machine. You really need to check with your surgeon first! Do you have a check up coming up soon? I only say this because I had VATS Left upper lung segmentectomy, and I was told not to do any kind of exercise or heavy lifting for months. I was told I could injure the healing going on inside. The outside was good but inside takes longer. Very slow easy stretching and walking are the best for at least the first few to six months. If you think you need more than walk farther at a faster pace, and do longer sessions of stretching. If you injure the inside, while it is still healing, it will be an even longer and painful recovery. Please check with your surgeon first! 🙏