A. 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 out of control and dangerous.

Tilt dumbbell bench press upwards.

A. Key exercise parts: upper part of pectoralis major, followed by toe of deltoid and triceps brachii.

B. Starting posture: Lie on your back on the bench and tilt upward for 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 practice, the main strength is concentrated on the pectoralis major, so that the pectoralis major is always in a state of tension. Triceps brachii as a secondary supplementary strength.

Tilting dumbbell bird

A. Key exercise areas: 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: dumbbells fall to both sides. if the arms are straight, it is difficult for the chest muscles to get the feeling of stretching and muscle contraction.

Dumbbell bird in prone position

A. Key exercise areas: pectoralis major and deltoid.

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, and the elbows are slightly flexed until the muscles on both sides of the chest feel fully stretched and the upper arms fall 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 the arms are straight, it is difficult for the chest muscles to get the feeling of stretching and muscle contraction.

Bending and stretching of the neck and back arm when standing.

A. Key exercise parts: mainly bodybuilding triceps brachii.

B. Starting posture: the whole body is upright, the barbell is held in both hands, and the upper arm is flexed and fixed on both sides of the head.

C. Action process: inhale, take the elbow joint as the axis, straighten the forearm and lift it forcibly, and pause for 2-3 seconds. Then inhale, slowly bend your arms back to your neck and repeat the exercise.

D. training points: the upper arm must be close to the ear and the elbow should be clamped. The upper arm should be vertical to the ground, and the tip of the elbow should be vertical upward. Don't go back and forth to help.

Flexion and extension of prone arm

A. Key exercise site: triceps brachii.

B. Starting posture: naturally stand at one end of the stool, bend your upper body forward until your back is parallel to the ground, support your left hand on the stool with your palm, hold the dumbbell in your right hand, bend your elbow so that your right upper arm is close to the side and parallel to your back, and your forearm will droop.

C. Action process: hold the bell, keep the upper arm close to the body, fix the elbow position, hold the bell and lift it until the arm is straight, and then slowly lower it to recover. Only the forearm moves up and down.

D: training points: adoption? The principle of isolation training? Hold the bell until the whole arm is straight, so that the triceps brachii is completely contracted, and the silent number remains motionless 1, 2, 3, and then put it down for reduction.

Squat down and bend over

A. Key exercise site: biceps brachii

B. Starting posture: sit or stand up straight, with the upper body slightly leaning forward, one hand dumbbell hanging on the inside of one leg, the elbow of the other arm naturally bending, and the palm or elbow resting on one thigh.

C. Action process: Hold the bell and slowly bend your elbow up to your chest. Don't move your upper arm, stick to the inner thigh.

D. training points: when holding the bell, don't relax your back. When the bell bends to the chest, make the biceps brachii as tight as possible and keep still for 3 seconds. Then, put it down slowly. You can also do it standing.

Standing dumbbell hammer lift

A. Key exercise parts: mainly exercise the brachialis and biceps brachii.

B. Starting posture: upright or sitting posture, arms straight and naturally drooping, dumbbell in hand, tiger's mouth facing forward.

C. Action process: At the same time, both upper arms bend upward around the elbow with dumbbells, forcibly tighten the upper arm and forearm, pause for 2-3 seconds, then exhale, slowly put down the bell and return to the side, and repeat the exercise.

D. training points: when holding the lever and swinging, the upper arms of the two arms are fixed, and the bell is held by the straight wrist, and the inertia force of the upper body swinging is not allowed.

One-arm reverse grip bending of standing stretcher

A. Main exercise parts: bodybuilding biceps brachii and brachialis muscle.

B. Starting posture: stand naturally, with feet shoulder-width apart, chest out, abdomen in, and waist in. The right arm is straight down at the side of the body, and the palm holds one end of the handle forward.

C. Action process: inhale, bend your elbow and slowly pull up the stretcher, put your right hand close to your right shoulder, pause for 2-3 seconds, then exhale, slowly restore and repeat.

D. training points: when pulling up, the upper body should be kept straight, and the elbows should not be swayed back and forth.

Dumbbell push

A. key exercise parts: this action is to exercise the large muscle groups in the upper part of the trunk. For example: deltoid, trapezius, upper thoracic, triceps brachii and upper back muscles.

B. Starting position: Hold the bells on both sides of the head with both hands.

C. Action process: Push the dumbbell vertically with both hands until the arm is straight. Then slowly lower it to the starting position.

D. training points: dumbbell grip has greater freedom than barbell.

Stand upright and lift horizontally.

A. Key exercise areas: posterior deltoid and upper back muscles.

B. Starting posture: Stand with your feet shoulder width apart, hold dumbbells in the palms of your hands, bend your upper body forward and parallel to the ground, and bend your legs slightly, so that there is no tension in your lower back.

C. Action process: Lift the two hand bells to both sides until the upper arm is parallel to (or slightly beyond) the back, pause for a moment, and then put down the dumbbell to recover. Do it repeatedly.

D. Training points: If your elbow and wrist bend slightly when you hold the bell to both sides, you will feel that you can get better deltoid muscle contraction. During the whole exercise, the mind should focus on the contracted muscle groups.

Side lifter

A. Key exercise site: the lateral middle bundle of deltoid muscle.

B. Starting posture: stand naturally, with dumbbells in each hand in front of the anterior pituitary, elbows slightly flexed and eyes forward.

C. Action process: Two hand bells are lifted to both sides at the same time until they are lifted to the level of the head. Then, slowly fall back to the original position along the original path and repeat it.

D. training points: in the process of lifting and releasing the bell, the elbow and wrist are always slightly flexed, which is more effective for the contraction of deltoid muscle. When the dumbbell is lifted to both sides, at the same time, the wrist is turned up slightly above the thumb until it is lifted to the highest position. When the dumbbell falls, the wrist turns back.

Qianpingju

A. Key exercise areas: upper chest and deltoid toes.

B. Starting posture: stand naturally, holding a bell in each hand or hanging a barbell in front of your legs.

C. Action process: Lift the dumbbell or barbell forward (elbow slightly flexed) until it is parallel to the line of sight. Then, slowly put down the reduction and repeat it.

D. training points: if you use dumbbells, put your fist forward and hold the bell in front of you. This method is to concentrate on training deltoid toes alone.

Shear span

A. Key exercise areas: gluteus maximus, hamstring and quadriceps femoris.

B. Starting posture: put your feet together and put the barbell behind your neck (or raise dumbbells with both hands). Let your right foot take a big step forward first. Then, slowly squat down, the right knee bends forward, and the left leg sinks slightly.

C. Action process: When squatting to the lowest position, make your legs straight up at the same time, retract your left foot forward, and stand close to your right foot. Then, let your left foot take a big step forward and squat down. Do it repeatedly.

D. training points: if you stand up for three quarters in a squat or have a short distance from being straightened, it is mainly the contraction of quadriceps femoris. This action can also be cut and squatted in place, and the left and right feet are alternately practiced.