Hypertrophy.
It damages your muscle. Your body then use the protein from food to repair those muscle, and adapt the muscle to be ready for the next exercise. Resulting in the increase in size.
Exercise help you increase the quantities of Actin and Myosin as well as increase the size of your muscle
Hypertrophy is the increase in muscle size. Transient hypertrophy occurs when fluid accumulation (edema) increases in specific muscles during exercise. It is often called "the pump" because after exercise, blood rushes to the muscles, instantly making them appear larger in size. Chronic hypertrophy occurs when long term resistance training results in the increase of muscle size. The duration for which the increased muscle size remains is dependent on the intensity and frequency of the workouts.
Muscle cells increase in size (hypertrophy) and in number of mitochondria, which are responsible for producing energy. Additionally, exercise can lead to an increase in the concentration of myoglobin, which helps store and transport oxygen in the muscles.
Lifting weights causes tiny tears in muscle fibers, which then repair and grow stronger, resulting in increased muscle size. This process, known as muscle hypertrophy, involves an increase in the size of individual muscle cells, leading to enhanced muscle definition and size. Additionally, increased blood flow to the muscles during exercise can also temporarily swell them, contributing to a larger appearance.
Hypertrophy. It refers to the increase in the size of individual cells, leading to overall growth of the tissue or organ. Hypertrophy can occur in various tissues, such as muscle tissue in response to exercise.
I believe you are asking if EMS (electronic muscle stimulators) increase the size of your penis. First of all, EMS is designed to stimulate muscles and strengthen them. There is no muscle in the penis, and EMS devices are very strong because they are designed for muscle exercise. It would be very rough on your penis. If you did use it, it would not increase the size of your penis although it might feel like electrosex.
When a muscle decreases in size due to a lack of exercise, it is called disuse atrophy.
If you were talking about resistance training, the only measurable difference in size immediately after a strength training session would occur if you deliberately trained in such a way as to experience a "pump" in a muscle group. For a few minutes, that muscle group would be engorged with blood and might be slightly larger than normal. Of course, in the long term proper resistance training will increase your amount of lean muscle mass and that may (at least in men) increase the size of muscles.
exercise
Exercise
Work out.