Generally speaking, there are two kinds of fitness newcomers: 1. Those who want to gain muscle and those who want to lose fat.
For people who want to gain muscle, your muscle latitude will never change much in the first month. No training plan can make a novice who has just come into contact with fitness grow a few centimeters in the latitude of the first month. The most important thing in the first month is to strengthen the overall metabolic capacity, so that you can consume more energy and increase your strength. The most outstanding performance is that the appetite has obviously increased a lot, and the strength is not the same as that of a month ago, which just lays the foundation for future training. From the second month, the latitude will change obviously. As for how much can be increased, it still depends on the rationality of personal physique and training diet.
So, for people who gain muscle, how long will fitness have an effect? Depends on what effect you want. If you want to make your appetite bigger, congratulations, it will work in a week. If you want to gain a lot of strength and weight, a month will definitely have an effect. But if you want muscle latitude, lines, etc. It will take at least 3 months to make a significant change.
People who want to lose weight have too many uncontrollable conditions. Calorie intake, fat, intensity, training time and type, and usual conditioning. It is impossible to notice all these situations, so most people have different fat-reducing efficiency. The most efficient month loses 10 kg, and the less efficient month gains. Efficiency is not high, depending on your personal situation.
Therefore, for people who lose fat, after controlling all controllable conditions, 1 month can produce results. As for the time for obvious changes, it is almost 3-6 months according to different personal circumstances.
Many successful cases tell us that if we want to get the desired effect, we must stick to it. It is almost impossible to have an effect in a few weeks or even days. So learn to persist, your sweat will not deceive you, and give yourself a few months to regenerate.