Aerobic exercise is the most effective method. Keep running or playing ball every day. The exercise time is about 30 minutes. At the same time, you can also start fitness. You don't need to do complicated movements at first, just practice your chest muscles, abdominal muscles and arm muscles. Fitness can't be rushed, but long-term persistence can be effective. Usually three times a week is enough. Scientific fitness, combined with reasonable nutrition, will have obvious effects in about 3 months. Keep practicing for more than 1 year, and the muscles will be obvious. This is my personal experience. Pectoral muscle: 1, the key exercise parts of barbell bench press: pectoralis major, deltoid muscle and triceps brachii. The vast majority of champion bodybuilders regard back support and pushing as the best movements to exercise the upper body. B. Starting posture: Lie on your back on a flat bench with your feet flat on the ground. Hold the barbell with your palms up, the distance between your hands is slightly wider than your shoulders, and your arms are straight to support the barbell above your chest. C. Action process: make the two straight arms open to both sides, slowly bend the arms, and the barbell falls vertically until the barbell touches the chest (about above the nipple line). Then push it to the open position and sit down. D. training points: don't arch your back and hips, and don't hold your breath, which will make your muscles lose control and be dangerous. 2, dumbbell bench press key exercise parts: pectoralis major, deltoid and triceps brachii. B. Starting posture: Lie on your back on a flat bench with your feet flat on the ground. Hold the dumbbell with your palms straight up. C. Action process: make the two straight arms open to both sides, slowly bend the arms, and the dumbbell falls vertically. When it reaches the lowest position, do push-ups and exhale when push-ups. Then push it to the open position and sit down. D. training points: don't arch your back and hips, and don't hold your breath, which will make your muscles lose control and be dangerous. 3, lying dumbbell bird key exercise parts: pectoralis major and deltoid muscle. B. Starting posture: lie on your back on a flat bench, hold dumbbells in both hands, palms facing each other, and push up until your arms are straight and supported above your chest. C. Action process: Two hand-held dumbbells fall to both sides in parallel, with elbows slightly bent, until the muscles on both sides of the chest feel fully stretched, and the upper arms fall to the level below the shoulders. Take a deep breath when the dumbbell falls. Exhale when holding the bell and lifting it back to its original position. D. Training points: Dumbbells fall to both sides. If your arms are in a straight state, it is difficult for your chest muscles to get the feeling of stretching and muscle contraction. 4. The key exercise part of barbell bench press is the upper part of pectoralis major, followed by the toe of deltoid muscle and triceps brachii. B. Starting posture: Lie on your back on a bench with an upward inclination of 35-45 degrees. C. Action process: the distance between hands is slightly wider than the shoulder, and the barbell is supported by the straight arm at the upper part of the shoulder. Inhale when you put it down above the chest (near the clavicle). When the bar touches the chest, push it up and exhale when you push it up. D. Training points: Generally, a wide grip is adopted, and the bar is put down at the clavicle. This method makes the chest muscles stronger. 5. The key exercise parts of upward oblique dumbbell bench press: the upper part of pectoralis major, followed by the toe of deltoid muscle and triceps brachii. B. Starting posture: Lie on your back on a bench with an upward inclination of 35-45 degrees. C. Action process: Hold the dumbbell directly above the shoulder with both arms. Inhale when you put it down above the chest (near the clavicle). When descending to the lowest place, do push-ups and exhale when doing push-ups. D. Training points: During the training, focus the main strength on the pectoralis major, so that the pectoralis major is always in a state of tension. Triceps brachii as a secondary supplementary strength. 6. The key exercise parts of the upward inclined dumbbell bird: upper chest and deltoid muscle. B. Starting posture: lie on your back on an inclined bench, hold dumbbells in both hands, palms facing each other, and push up until your arms are straight. C. Action process: Two hand-held dumbbells fall to both sides in parallel, with elbows slightly bent, and the dumbbells fall to the muscles on both sides of the chest to feel fully stretched. Take a deep breath when the dumbbell falls. Exhale when holding the bell and lifting it back to its original position. D. training points: if the dumbbell falls to both sides and the arm is in a straight state, it is difficult for the chest muscles to feel stretching and muscle contraction. 7. The key exercise part of parallel bars is the lower part of pectoralis major, followed by triceps brachii and deltoid. B, starting position: the distance between the poles is better than the shoulder. Hold the pole with both hands as a straight arm support, hold your chest and abdomen, and keep your legs together, straighten and relax. C. Overstroke: Exhale, bend your elbows and arms, and lower your body until your arms bend to the lowest position. Your head should be led forward and your elbows should be abduction, so that the pectoralis major can be fully stretched. Inhale immediately, support your arms with the sudden contraction of pectoralis major muscle, and make your body rise until your arms are completely straight; When the upper arm exceeds the horizontal position of the bar, the hips are slightly retracted and the trunk is in a posture of "bow your head and hold your chest out". When the arm is straight, the pectoralis major is in a state of complete tightening. Repeat the exercise. D, training points: the action should be carried out slowly, and don't use the vibration of the body to help complete the action; Hold up quickly, hold out your chest, raise your head and abdomen, and don't shrug your shoulders; In order to increase the training intensity, you can carry out waist weight-bearing exercises. How to build a strong abdominal muscle: The abdomen is in the center of the body, which is particularly eye-catching. From the point of view of human bodybuilding, a truly bodybuilding abdomen should consist of a slender and powerful waist and abdominal muscles with obvious lines. Therefore, please don't neglect abdominal bodybuilding. First, lateral bending and upright exercise. Separate your legs, raise your arms horizontally, bend your upper body forward, extend your left hand to your right foot, raise your right arm naturally, don't bend your legs and arms, inhale, and then exhale. Repeat in the opposite direction, 8 times in a row. Second, leg flexion exercise supine position. Keep your arms flat on the ground, lift your knees at the same time after your legs are straightened, inhale to make your thighs close to your abdomen, then exhale and slowly recover. Repeat 8 times. Third, lifting the legs and abdomen is mainly to exercise the lower abdominal muscles. Lie flat on your upper body, straighten your legs as high as possible, and then slowly put them down. After this action, bend your knees and continue to do the same action. Repeat 8 times. Fourth, the sitting supine position is mainly to exercise the upper and lower abdominal muscles. Keep your legs straight, keep your body balanced, then bend your knees and abdomen, so that your abdominal muscles are extremely flexed. During exercise, your feet should not touch the ground or the bed surface. Five, "cycling" exercise supine position. Take turns to bend and stretch your legs, imitating the action of pedaling a bicycle, fast and flexible, and the range of flexion and extension is as large as possible. It lasts for 20~30 seconds. Sixth, twist the waist and hold the handle with one hand or pull a certain weight, do twisting and turning exercises in various postures, and exercise the external oblique muscles and waist muscles. Everyone can choose the above exercises according to their own situation, and gradually increase the amount of exercise each time according to their own physical condition, twice a day. How to quickly develop sexy abdominal muscles is becoming more and more popular, but must we practice abdominal muscles in the gym? The answer is: no, of course, a professional gym can develop perfect abdominal muscles, but you can also develop beautiful abdominal muscles without a gym. This time, we will introduce some movements to you so that you can train your abdominal muscles at home. In addition, we also divide the action into three stages: the primary stage, the intermediate stage and the advanced stage. Let you have different choices. Before the introduction, the coach reminded you of some important things and concepts: 1 Be sure to spend a few minutes warming up before exercise. 2. Don't be impatient. In muscle training, the slower you move, the more sure you are, the more obvious the effect will be, and the movement is indeed more effective than the rush. People with a lot of body fat must do cardiopulmonary exercise first, such as jogging, swimming and cycling. Do cardiopulmonary exercise four or five times a week, and the time for doing cardiopulmonary exercise must be more than 40 minutes. It's no use doing resistance training alone, because all your muscles are covered with fat. People with a lot of body fat should try not to eat after 9 pm. 5. When eating food, try to eat less starchy food, such as rice, pasta, bread, etc. And replace it with lean meat, fish, eggs, vegetables and fruits with less sweetness. 6. Exhale forcefully during exercise, and inhale conversely. 7. When doing abdominal muscles, the muscles in the back are antagonistic muscles, so people with problems in the back must see a doctor. When doing abdominal muscle training, you must do what you can, and stop when your lower back is uncomfortable. 8. There is also a very important point: Perseverance+Endurance+Perseverance Beautiful abdominal muscles depend on three elements: reasonable diet, aerobic training and regular abdominal muscle training. Only by combining the three harmoniously can we have the abdominal muscles we dream of.