Water resistance rowing machine, Hyde's 690 rowing machine, also known as rowing machine, is a fitness tool used to simulate rowing on water. Rowing can exercise 80% of the whole body muscle groups, such as legs, waist, upper limbs, chest and back, which can achieve the effect of aerobic training of the whole body muscles. Rowing machine not only has good exercise effect, but also has little risk of sports injury. I hope my answer can help you.