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Stretching is a fitness method, including active stretching and passive stretching. The so-called active stretching means that the action is mainly kept in a specific position by the strength of muscle contraction, rather than other external forces, so active stretching is also called static-active stretching. The advantage of active stretching is that it can increase the flexibility of action and the strength of muscle contraction.

For example, standing on one leg, lifting the other leg and keeping this posture still is a very standard active stretching. It should be noted that the active stretching posture is difficult to maintain. Generally, it is difficult to maintain the active stretching posture to 15 seconds, so the general active stretching posture can be maintained to 10 seconds without too long.

Gym refers to the places used for fitness in the city. Generally speaking, there are complete facilities, comprehensive fitness and entertainment programs, professional coaches to guide and a good fitness atmosphere. In the gym, you can not only exercise your muscles, make your figure more tangible, but also make many new friends.

There are nearly a hundred kinds of fitness equipment in the gym, but in summary, they can be roughly divided into three types:

① General fitness equipment: such as domestic 10 comprehensive training equipment and 16 functional fitness equipment;

② Local fitness equipment: such as fitness bicycles, rowing machines, stair climbing machines, treadmills, leg bending machines, heavy hammer tensioners, lift heel exercisers, etc.

③ Small fitness equipment: dumbbells, kettle bells, crank barbells, spring tensioners, fitness discs, elastic bars, handles, etc.

References:

Fitness center-Baidu encyclopedia