Although large muscle groups like hips, legs and chest are not easy to get tired. But in terms of fitness, the next step is actually the barrel theory. As long as your muscles have shortcomings, you may not be able to train or even get injured. When squatting, your hips and hips are very strong. However, some core muscles are tired, and it is easy to master the balance and cause injuries.

So at the beginning of training, when the whole body is in the best condition, do the basic movements of free weight and multi-joint participation. Because the small muscles and nerve functions are not tired, the best training effect can be achieved. Next is the safe action of fixing the instrument. Fixed instrument movements make the body more stable and limit coordinated joint movements. So it is very safe and can challenge the heavyweight. You can further deepen the muscles you want to train.

For example, I did barbell bench press as soon as I came up, and some small muscle groups were as tired as sawtooth. At this time, you can use a fixed instrument desktop to press. Because the fixation device is stable and won't sway up and down, your serratus muscle doesn't need to participate in controlling the balance. You can bear the weight of your chest without worrying about yourself. ...