Push-ups: Push-ups are a very effective muscle training method, especially for chest muscles, triceps brachii and forearm muscles. It doesn't need any equipment, it just needs to train with its weight. You can choose different kinds of push-ups according to your ability to increase the difficulty.
Backhold: Backhold can exercise the core muscle groups, shoulders, arms and other muscle groups of the body, which is a very energy-consuming exercise. You can do handstand support on corners and doorframes to train.
Running: Running is an effective aerobic exercise, which can enhance heart and lung function and promote the exertion of whole body muscles. You can run and exercise indoors, outdoors, stairs and other places where there is no treadmill.
Sit-ups: Sit-ups can exercise abdominal muscles and make them stronger. Sit-ups can be done indoors and outdoors, which is very convenient and simple.
Skipping rope: Jumping exercise, aerobic dance and skipping rope can be used instead of aerobic equipment, which can increase the heart rate, burn fat and enhance the endurance of lower limbs and heart and lungs.
In a word, besides gym equipment and equipment, there are many ways to train muscles. As long as you have the desire to exercise, you can try some simple training methods at home, school, office and other places to achieve the dual purpose of saving money and exercising.