Zhou Da and Cui Long's little episode was just a little more talking point for the Jumping coaches to talk about after dinner, but the work tasks of Fanzhong quickly made them forget about this little episode.

"Coach, do you think I should arch my back when I do bench pressing?"

Since Li Da took Ji Ke's private lessons, his body has felt unprecedented changes, and with the moderate consumption of some supplements, he has achieved initial results in just one month, and his interest in exercising is high, even a little excessive.

"Bench press arch back, where did you learn the posture?" Ji Ke was very curious, this detail of the action, Li Da's current level should not be able to touch.

"Some of the videos I saw on the Internet," Li Da felt from Ji Ke's tone and demeanor that his coach didn't seem to approve of this action, and explained with an argument, "The gods who do the bench press above will arch their backs, so I wondered if this would help with the bench press." ”

"You've been exercising with me for almost a month, and I've told you a lot about human physical strength, what do you think about arching your back when bench pressing?" Ji Ke looked at Li Da speechlessly, thinking that this baby looks like a normal person, why don't you know how to use your brain when something happens?!

What is the difference between thinking that you can easily learn fitness just by watching videos?

The human body line is actually a very simple physical concept, and there is only one core idea: whether the center of gravity of the exercise action is in the vertical direction of the part you want to exercise!

Ji Ke continued to instill this in Li Da at the beginning of his workout, but unfortunately Li Da always thought that there was a coach in every class, so why bother to memorize these things?

Every time Li Da shirks like this, Ji Ke doesn't want to mention the urge to beat him in his heart, if it weren't for the money, the ghost would be willing to entertain this kind of lazy member, he really treats the coach as a number of jack-of-all-trades, almighty Tinker Bell, no temper, right?!

Finally, there is such an opportunity to make Li Da feel the value of thinking, how could Ji Ke miss it? Of course, he wants to be a good teacher.

"It shouldn't be helpful for exercising the chest, right?" Li Da hesitated, he vaguely remembered that Ji Ke seemed to have said that every movement has a core purpose, and other auxiliary means should be to strengthen the core purpose, not weaken!

"Forget it, don't think about it, looking at you like that, it is estimated that even if you are given a day, you can't figure it out. Usually let you remember more important points, you always have a reason to push, now you experience the end of not learning and remembering, right?"

Ji Ke smiled and nodded Li Da, after all, people are customers, and question-based communication can indeed increase the friendship between the two, but you can't use this way to make members feel that you are humiliating him!

In terms of body position, there are three types of bench press: downward incline (head oblique downward), plank and upward incline (head inclined upward), and two types of weight bearing: barbell and dumbbell!

Incline bench press is generally not recommended by coaches for two reasons:

From a safety point of view, when the recline bench press, because the head is the lowest, the blood supply pressure to the brain is large, and many members will involuntarily use breath holding to improve their strength when they conduct strength training, so the risk factor of the incline bench press is too great, so it is excluded from the regular training actions by most coaches.

From a practical point of view, although the developed lower chest muscles can make the chest have a full, beautiful appearance, eye-catching, but once you stop regular exercise, the lower chest will be pulled down by gravity, which is very ugly!

Flat and inclined bench press are the two most common bench presses, especially the flat plate, which can best shape the chest volume and make the chest rise quickly, is very popular among men who love chest muscles.

There is no doubt that arching your back during the bench press causes your feet to kick the ground, which increases the weight of the bench press in a way that leverages force. In many fitness competitions, it is common to see gods from all walks of life using this method to improve their bench press performance.

"Is the video you watching this kind of video?" Ji Ke's child-teasing eyes made Li Da feel quite depressed, Nima, labor and management are eighteen years old, as old as you! But he can't refuse this kind of vision, because he does have the idea of watching these videos.

"Those great gods do this because they are in the game, they are driven by profits, and they are professionals!"

The arched back is usually used for competitions during bench pressing, and of course, there are many enthusiasts who have watched the video of the great god and blindly followed the trend to imitate the exercise in the gym.

In fact, the bench press arch is a very dangerous, highly professional, and 100% invasive workout detail!

First of all, the arched back makes the lower half of the thoracic vertebrae and the lumbar spine show an arc of abnormal physiological curvature; during the bench press, with the force of the feet, it provides assistance for the bench press, and the strength will pass through this arc; first the unconventional bending, and then the force load, this section of the spine is easy to be deformed and damaged because of the arch back, and the lumbar intervertebral disc herniation and lumbar spine fracture are just around the corner!

Secondly, the spine as a whole, the upper half of the spine should fall with the arch of the lower half, showing a perfect arc along this direction, just like a dancer!

"You know? The arch back during the bench press is not recommended for any fitness enthusiast who does not aim to compete. After making a statement from a safety perspective, Ji Ke then began to criticize the arch back from the effect of the exercise.

The plank bench press exercises the middle chest bundle, which is often called the middle chest, but with the arch of the back, the line of force moves to the direction of the head, biasing to the upper chest, and it is not an effective exercise for the middle chest!

An experienced veteran may move the bar downwards, not to mention whether it can be realigned with the mid-chest, which will undoubtedly increase the pressure on the arched spine and make it easier to cause spinal injuries.

"Honestly practice according to the movements taught to you, safe and effective, this month has achieved initial results, what are you anxious about?" After speaking, Ji Ke patted the barbell bar on the bench press, "Come on, I've said so much, the rest between the groups has been delayed, hurry up and don't rub it off!"

"Hey, by the way, coach, let's talk about something," Li Da lay down, his hand still didn't hold the barbell bar, as if he remembered something, and suddenly said, "My dad saw that I have changed a lot this month, and I want to invite you to a meal to express my expression; ”