The first time I went to the gym to ride a bike, it was normal to feel leg pain the next day. Because you rarely do such a large amount of physical activity, it is normal for your thighs to be sore.

This kind of soreness usually disappears in about 2 days, and you can continue to exercise when it disappears. One thing to remember is that the intensity of fitness should not greatly exceed your endurance, otherwise it is easy to strain your muscles.

Extended data:

Sports, an activity involving physical strength and skills, is bound by a set of rules or habits and is usually competitive. There has never been a cosmic movement in time and space, and the cosmic movement has given birth to everything. There is no object that does not move, and there is no movement that can leave the object. Movement is conservative, that is, it can neither be created nor destroyed, but its concrete forms are diverse and can be transformed into each other, and the total amount of movement remains unchanged during the transformation.

In geometry, the motion of a rigid body is described as the mapping of a plane to itself, and the distance between any two points A and B is the same as the distance between their images A' = m (a) and B' = m (b). In philosophy, the definition of motion is the linear migration of things in time and space.

References:

Baidu encyclopedia-sports