Water resistance rowing machine, also known as water resistance rowing machine, is a kind of rowing machine. It simulates the real rowing mode, creates the visual, sound and sensory effects of real rowing, makes the rowing action vivid and gradual, and has obvious muscle strengthening effects on legs, waist, upper limbs, chest, back and other parts. Metal flywheel and magnet are used to generate resistance, and the resistance can be adjusted by changing the distance between them. Resistance adjustment has more gears, less noise, and its volume is usually larger than hydraulic resistance and similar to wind resistance. Fidelity and price are in the middle. The principle of water resistance is the water resistance caused by the rotation of an oar in a closed water tank. You can hear the sound of rushing water when you exercise, which is more real for boating. Water-resistant rowing machines are generally expensive, with excellent workmanship and troublesome maintenance of water tank system, so it is necessary to buy special disinfection water purification tablets for rowing machines.