Be sure to warm up before exercise. When you warm up, you can feel a little sweat on the skin surface. Here are some ways to warm up the public:

Treadmill warm-up: seven or eight minutes in summer

Ten minutes in winter

Warm-up by Spinning: Two Songs in Summer

Four songs in winter

Preheating of ellipsometer: five or six minutes in summer

Ten minutes in winter

Unarmed movements: jumping up and down, running in place, skipping rope, lifting legs, running back and forth, jumping in place, etc.