Office workers need exercise, so there are more gyms in the city. In order to cater to all kinds of consumers, there are many kinds of gym equipment, such as treadmills and dumbbells. There are many kinds of fitness equipment. From the functional diversity of fitness equipment, it can be divided into two categories: single function and comprehensive multi-function. Common rowing machines, exercise bikes, walking machines, treadmills, waist-beautifying machines, treadmills, etc. Chest enlargement, pull-ups and supine pressing are mainly used to exercise upper limb strength and pectoralis major strength.