The direction of spine movement, unconsciously, the problem of low-headed people can be corrected (everyone knows the injury of holding a mobile phone). Secondly, the state of human body is horizontal when swimming, and the flow of human blood is horizontal when exercising. Don't stand like a real person, blood flows up and down, causing excessive heart load. I think the best exercise for the elderly is walking.
It is best to stick to 6000 to 8000 steps every day. It is best to go out for a walk after dinner and half an hour later. You can trot in your sixties, and your heartbeat is about your heart and keep, which can strengthen your heart and strengthen your body. When I was in my seventies, I noticed an old man in a community. He was in excellent health. When I first retired, I often saw him coming back from climbing mountains. He climbs mountains every day. After getting up in the morning, he walked for miles to climb the mountain. Later, I heard that he had knee problems. I saw him and asked, didn't you climb the mountain? Go back and forth. Hang in there. Of course, if you are not feeling well, you can get up early to practice walking and dance old dances, or you can learn from other teachers to discourage everyone's hobbies, and your health varies.
If you like Tai Chi Chuan, go to Tai Chi Chuan. If you like dancing, go dancing. In short, it is a principle. Let's leave now. Walking is a good choice for most old people. But some old people like to walk with their hands behind their backs.