Baseball is one of ball games. It is a competitive event in which metal bars hit the ball for offensive and defensive confrontation. Baseball originated in the15th century and was a popular cricket in England at that time. Later spread to the United States. 1839, the first baseball game was held in ancient paston, new york, USA. 1978, the International Baseball Federation was recognized by the International Olympic Committee. 1994, the headquarters of the International Baseball Federation is located in Lausanne, Switzerland. Baseball was included in the Olympic Games in 1992. The following are the baseball shoulder training skills I have compiled. Let's have a look.
Recommended practice:
1. If there are weapons.
2. Raise your shoulders directly above your head with your thumbs inward.
3. slow recovery, you can take turns with your shoulders or one arm.
Shoulder stretching:
1. Stand with your shoulders close to the desk and chair, one arm close to the chair to keep your body balanced, and the other arm vertically downward.
2. Hold the instrument backwards until it is balanced with the trunk, and the elbow joint is straight and close to the trunk.
3. Recover slowly, and then do it again to avoid unnecessary pulling on the shoulders.
Note: This exercise can be done without a desk or chair, without a table, or without an arm at the table.
Infraspinatus and teres minor's external rotation exercises;
1. Lie on your side with your main arms at your sides. Stand straight.
2. Place the other arm on your side and bend your elbow 90 degrees.
3. Raise your hand at a 90-degree angle with the ceiling, and keep your elbows close to your torso.
4. Recover slowly and then do it.
Mountaineering seems simple, but even the simplest uphill and downhill are skillful. Today, I found a few tips to provide you with a set of scientific mountaineering methods, which can reduce fat and weight while climbing the mountain for fitness. Entertainment, fitness and weight loss are right!
Mountaineering belongs to aerobic exercise, which can increase protein in blood, enhance immunity and help toxins in the body excrete in time. Promote metabolism and accelerate fat consumption, so mountaineering has a unique role in slimming and shaping.
Warm up before going up the mountain.
Remember to warm up before going up the mountain. Because when you start mountaineering, you can't increase the amount of exercise immediately, you must step by step, and then gradually increase the intensity according to a certain breathing frequency, so as to avoid the sudden change of breathing frequency during the exercise. Warm-up exercises should be carried out at the waist, knees and ankles, and the exercise cannot be repeated.
1. Waist: When standing, the distance between your feet is slightly wider than your shoulders. Hold one leg with both hands, straighten your back and press down.
2. Active knee joint: bend your knees, put your hands on the knee joint, turn clockwise, and then turn counterclockwise.
3. Active ankle joint: Stand with the center of gravity on one leg and the toe of the other leg touching the ground, turn clockwise first, then counterclockwise.
The intensity of mountaineering
Tests show that climbing mountains consumes more fat than other sports. If a person weighing about 70 kilograms climbs a hillside with a slope of 70 degrees at a speed of 2 kilometers per hour for 30 minutes, his energy consumption is about 500 kilocalories, which is equivalent to swimming in the swimming pool for 45 minutes at a speed of 50 meters per minute or doing boring abdominal exercises in the gym for 50 minutes. If you want to strengthen the effect of fat shaping, it is best to climb 3 ~ 4 times a week.
Internal rotation of subscapular muscle;
1. The leading arm lies on his side, with his elbow pulled out from under his body and slightly bent.
2. Forearms are slightly extended forward and elbows are bent.
Put a pillow or cushion under your chest.
4. Slowly raise your arms to your chest, keep your elbows at 90 degrees, keep your torso still, and only move your shoulders. Recover slowly and then do it.
Supine (horizontal) adduction movement:
1. Lie flat on the floor or bench.
2. The arm extends out of the body, the elbow joint is straight, and the palm is facing the ceiling.
3. Slowly raise your arm until your finger points to the ceiling, and slowly lower it to recover, but be careful not to cross the horizontal position when lowering your arm.
Reclining support exercise:
Push-ups help strengthen the chest and shoulder muscles.
1. Put your hands on the ground and kneel on the ground.
2. Bend the elbow so that the elbow and shoulder are at the same level.
3. Straighten your arms and keep your back straight.
In order to strengthen the chest and arm muscles, we should also practice:
1. Lie on your stomach without touching the floor, raise your hands to shoulder height, bend your arms, and tilt your elbows to your side.
2. Keep your arms straight, lift your body from your toes, and keep your back and legs straight when your shoulders are straight.
Elbow bending exercises:
The muscles around the elbow joint play an important role in the acceleration or deceleration of the arm. The following four groups of exercises can strengthen the strength of the front shoulder elbow joint.
1. Stand with arms at your sides and palms forward.
2. Bend your elbows and lift weights lightly. Do it after recovery.
Elbow stretching exercises:
Triceps is a preliminary elbow stretching muscle, and push-ups can develop the strength of this muscle. This sport is specially designed to enhance muscle strength.
1. Lie on your back with elbows pointing to the ceiling and arms bent.
2. Support the triceps with the other hand.
3. Elbows are completely straight. Do it again after recovery.
Questions and Answers on Expanding Baseball Rules
(1) Batter
1 After the pitcher threw the ball, the batter suddenly withdrew from the batter's area. At this time, no matter what ball is thrown, it is judged as a "hit".
Answer: Judge "hit" or "ball" according to the thrown ball. Only when it is the batter's turn to hit the ball and refuses to enter the hitting zone or enters the hitting zone without preparing to hit the ball, will each ball be awarded a "hit".
When the batter hits the ball, he walks completely out of the player's area with one foot. He should be convicted of illegal hitting. If he misses the swing, will the batter be out?
A: Not going out. Only the ball was hit, including the foul ball.
Base runner steals the third base at the second base, and the batter misses three strikes to take over the missed catch. Is it that the batter is out and the ball is dead?
Answer: If the swing is wrong, the game will continue. The batter was called out only when there was base runner at first base before two players were out. Different from the treatment of hitting a foul ball after two strikes.
There are no runners on fourth base. After the batter hit the ball twice, the pitcher threw a rebound ball at home plate and entered the strike zone. If the batter misses the swing, he takes over and catches it. Is the batsman out?
A: No, don't judge before you touch or pass it on. A rebound ball can't be regarded as a direct catch if it misses the catch.
The pitcher is ready to pitch, and the batter moves from the batter's area to another batting area. Should we rule him out?
A: It is a dead ball situation to judge the batter out.
What if the batter dodges but is still hit by a good ball?
Answer: Judging from a blow, the ball will die, but it won't hit the ball's body.
No one is out, and base runner is on both second and third bases. The batsman openly touched the ball and led it, resulting in a catch error, which made base runner score at third base and base runner at second base enter third base. How to deal with it?
A: In the case of dead ball, the runner on the third base is excluded before the two players are out, and the runner on the second base returns to the second base, and is judged as a "hit" or a "ball" according to the thrown ball.
Before two players were out, there was no base runner at first base. When the batter missed three strikes and became base runner, he thought he was out and went to find a player's seat. How to deal with it?
A: As long as he hasn't arrived at the team seat, he can't be ruled out. Batters can run to first base before entering the player's area. Take over and pick up the ball and pass it to first base.
On the third swing of the No.9 batter, the ball first touched the receiver's chest protector, and then was caught by the receiver before landing. Is the batsman out?
A: It was judged. Different from the rules of wiping baseball.
10 The batter will be sentenced to illegal hitting regardless of whether he hits the ball with a substandard bat or not, and the batter will be sentenced out. They should also be given a warning and ordered to quit the game.
A: Correct.
1 1 There was no one on the base. The batter hit the ball twice, the pitcher threw a rebound ball, and the batter swung a clean baseball, which was directly caught by the receiver. Have you judged it?
Answer: Although the ball landed first, it did not change the nature of the swing as a baseball wipe, so the receiver was judged to catch it directly, and the batter struck out.
12 one out, the runner grabbed the point at third base. The pitcher threw a high and far ball, and the batter jumped up and hit the ball into the air successfully, but when he landed, his feet were completely out of the hitting area. What should I do?
A: It is allowed to hit the ball in the air. Only when one foot or both feet completely step out of the hitting area can it be judged as illegal hitting.
13 base runner stole second base at first base. After two strikes, the batter completely walked out of the hitting area to hit the ball, hit it as a clean baseball, and took the pass from second base, but the steal was successful. What should I do?
A: It was a foul. The batter was out of bounds and the ball died. Base runner returned to his original base.
14 The batter hit the ball after two strokes, but the ball hit the grip. How to punish the hand for rolling into the boundary?
A: The referee was out of bounds when he hit the ball. Dead ball situation. The hand of the player holding the bat is not considered as part of the bat.
(2) The batting sequence is wrong
15 When the batting sequence is wrong, can the referee take the initiative to judge?
A: No, this is a complaint. It can only be handled after the defender complains or the wrong batter fails to complete the batting task and the attacker proposes to correct it.
16 when a defender complains about the wrong batting order, under what circumstances may he be ruled out?
A: When the wrong batter finished the batting task, the pitcher didn't complain before the next batter threw the ball or before any offensive and defensive behavior began, and the batter who should have turned was excluded.
17 what if the batter complains when he doesn't finish the batting task?
Answer: The existing "number of hits" and "number of balls" are valid if the batter should be replaced in turn.
18 The wrong batter completed the batting task, and the pitcher threw the ball to the next batter. How to deal with the complaints of the defense team?
A: hitting the ball is very effective. The ball was hit by the next batter of the wrong batter.
19 if the attacking team finds a rotation error, can it propose a substitution?
Answer: When the batting task is not completed, you can propose to replace the batter who should have played in the original round. "Hits" and "balls" are recorded in the new batter, but they are not allowed to be put forward after the batting task is completed.
One player is out and base runner is at first base. It was the second bat's turn to hit the ball, but the third bat came in and made a mistake. At the time of "one strike, one ball", base runner of the first base successfully steals the second base. After "strike two", the batter was suspended, and the pitcher complained to the defender before the batter threw the ball. How to deal with it?
Answer: The second batter is out, and stealing bases here is effective. The second batter of the batter's turn is the third batter, and he will continue to hit the ball.
The eighth beat should be used to hit the ball, and the fifth beat should be wrong. After completing the batting task, what should the pitcher do after throwing the ball to the new eighth bat?
Answer: The fifth stick is legal, and the sixth stick should be used to hit the ball. However, if the sixth and seventh bats are on base and the eighth bat is postponed, the number of shots and balls already thrown is valid.
(3) Name the batter
Can a designated batter hit the ball for any batter?
A: No, you can only hit the ball for the pitcher.
Can I use the named batter halfway?
A: It must be decided before the game starts and put on the opening team list.
Can the named batter be replaced?
A: The named batsman listed on the opening list must hit the ball at least once, unless the opponent has changed pitchers before, and can change them at any time thereafter, and the substitute becomes a named batsman.
Can the batting order of the named batter be changed?
A: No, the batting order of the designated batter is fixed.
What are the rules when the pitcher hits the ball himself?
A: The batsman was canceled and the pitcher hit the ball.
Which bat should the pitcher hit when the defender proposes to designate the batter to play third base?
A: Name the batter's original bat, and the pitcher will change the bat of the next third baseman.
Can I still hit the player by name when the pitcher changes to the right fielder?
A: no Once the pitcher changes his defensive position, he can't use the named batter in subsequent games. The original pitcher hits the ball in the order of the designated batter, and the new substitute pitcher hits the ball in the order of the retired outfielder.
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