What are the methods suitable for middle-aged people who are weak?

You can walk and jog properly. Easy jogging can enhance respiratory function, increase vital capacity, improve human ventilation and ventilation ability, and at the same time, it can also strengthen myocardium, exercise and protect the heart. However, it is necessary to master the appropriate intensity of exercise. If the heart and lung function is poor, fatigue and asthma appear, you should immediately stop exercising halfway. If you don't feel relieved after rest, you should seek medical advice in time.