For many people, exercise and sports for personal improvement is often related to the practice of methods of self defense. They usually start when young and develop their capacities for these over time. When they have at least come up to some level of expertise for one, they might be interested and take up another.
There are no limits to what you can practice, which schools or gyms you can enter or subscribe to. The mixed martial arts in Sacramento is a combination of gyms and practice areas, schools or dojos, and some network for league play. These days anyone practitioner of one kind of system cannot compete if he stays in that system alone.
The arts of this kind range from Oriental, from Japanese to Chinese and Occidental, forms of from France and the like. There is actually no nationalities that pertain to any one system although there can be originators which are still respected, like Okinawa, a Japanese island where Karate was first created and practiced.
There will be a predominance of boxing styles and ju jitsu or grappling and take down techniques. There should be certain favorites but this is often related to the country where folks are from. In Sacramento there may be lots of immigrants from countries where there are excellent martial arts like Korea or Thailand and they adjust to the system here.
Sacramento has its own mixed self defense and martial arts world, and every now and again the big shows come here and feature some local fighters. These could be on the bill along with the major fights or dates that are scheduled. Also, there is no one league or network that works for everyone and Sacramento has several independent or successful ones.
The locals all participate in these, and later they could go up to the national or international arenas. There is a cooperative process for these, and usually exchanges can be made between members of one club or fighting organization. When these want some exhibition of have some need of scheduled fight dates, they can import lots of excellent fighters.
Most people know each other locally or know others in different cities and countries. A lot of fighters want to move around to sample all the combinations that others may want to test their skills against these. There is no one system that works or is effective over everything else, but you have to do the practicing yourself.
There are lots of fighters with two or three mastered styles, and they could use a combination of preferences from each. The best combinations are fast, powerful and can go through the defenses of an opponent. Many practitioners keep their combinations fresh and new and therefore practice every day.
There are many gyms in this city which cater to MMA, which is now a well known sports. This is becoming more popular with a lot of people. And usually these are among the healthiest residents and the more peaceful ones and value peace as the foundation of all martial arts practice.